About the role

As a Staff Software Engineer (SDK), you will own platform live ops features and apply your creativity throughout the entire development lifecycle - from initial design to live game support. You will collaborate closely with product, design, and engineering teams to deliver high-quality game client features and reusable components, helping to accelerate development across Fortis Games. In this role, you will also provide technical leadership, architectural guidance, and mentorship to other engineers.

What you’ll achieve

• Engage in full-lifecycle development: scoping, design, implementation, documentation, and deployment of our game application.
• Lead technical design and design principles for client features and shared components
• Collaborate with back-end engineers on server-dependent game features.
• Work with product managers to shape product scope, evaluate technical tradeoffs, and define scalable solutions
• Adhere to and elevate studio development guidelines, code style, testing strategy, and architecture standards
• Perform in-depth client code analysis to identify and resolve complex bugs and performance issues.
• Create and review technical design documents to guide stakeholders and engineers
• Mentor and support other engineers, including guidance on TDD practices and effective use of AI coding agents in daily workflows

What you’ll need to be successful

• Experience developing mobile games or client applications using Unity3D
• Familiarity with building SDKs and reusable client frameworks
• Proven software engineering expertise within the gaming industry
• Experience leading architecture and technical design decisions
• Strong knowledge of software design principles and test-driven development (TDD) practices
• Experience collaborating with product managers on feature scope and technical planning
• Practical experience using AI coding agents / AI-assisted development tools with appropriate validation and quality control
• Team player, able to collaborate effectively with engineers, designers, and developers, with strong communication skills

Scopely is looking for a Staff / Senior Software Engineer, Live Technology to join our Monopoly GO! game team working on a hybrid basis out of our Barcelona studio hub, or remotely from within the EU.

At Scopely, we care deeply about what we do and want to inspire play, every day - whether in our work environments alongside our talented colleagues, or through our deep connections with our communities of players. We are a global team of game lovers who are developing, publishing and innovating the mobile games industry, connecting millions of people around the world daily

What You Will Do

• Design, implement, and evolve infrastructure systems that support scalable, high-velocity live operations, including CI/CD pipelines, build automation, deployment frameworks, and observability tooling.
• Own and maintain live technology platforms used across engineering teams, ensuring they are efficient, secure, and aligned with the evolving needs of a large-scale live mobile title.
• Develop internal enablement tools that streamline developer workflows, optimize build processes, and reduce friction across disciplines.
• Collaborate cross-functionally with backend, client, QA, production, and operations teams to define and refine workflows that improve build reliability, deployment speed, and live stability.
• Drive technical excellence by identifying and delivering infrastructure improvements that enhance performance, reduce cost, and strengthen system resilience.
• Architect solutions for Unity-based development pipelines, optimizing for build performance, cross-platform support, and rapid iteration.
• Enhance live system observability and monitoring, integrating best in class tooling to provide actionable insights into performance and reliability.
• Champion automation and long-term system health, ensuring that infrastructure and live systems evolve with product and organizational growth.

What We’re Looking For   

• Proven experience as a senior individual contributor focused on infrastructure, build engineering, or developer tooling within a high-scale live environment.
• Deep understanding of CI/CD pipelines and build automation, with hands-on experience in GitHub Actions, TeamCity, Bamboo, or similar tools.
• Strong programming proficiency in C# and a solid grasp of Unity build systems and challenges specific to live mobile development.
• Expertise in cloud infrastructure (AWS, GCP, or equivalent), including deployment automation, scalability, and cost optimization.
• Experience designing and maintaining systems that support continuous delivery and live release processes for mobile games.
• Familiarity with observability and monitoring platforms such as DataDog, Kibana or Bugsnag.
• Demonstrated ability to drive technical initiatives across teams, influencing architecture and process without formal management scope.
• A focus on reliability, performance, and developer enablement, with a passion for delivering exceptional player experiences through technology.

Highlights:

Role: Senior ML-Engineer

Location: Portugal, Remote

Language: Russian-speaking team; Strong English required (B2)

About Us

Fundraise Up is a modern fundraising platform built to make donating to nonprofits as fast and convenient as possible. We continuously innovate to reduce page load times, boost conversion rates, and support a wide range of payment methods. Each month, people around the world contribute tens of millions of dollars through our platform.

The world’s leading nonprofit organizations trust Fundraise Up. UNICEF, the most prominent UN charity, uses our platform for 100% of its online fundraising. So does the American Heart Association, the Alzheimer’s Association, and many others. We’re proud to maintain a 4.9 out of 5 rating on leading review platforms.

We serve the enterprise segment, with a primary client base in the US, Canada, UK, and Australia.

The Team

Our product development team is currently at 150+ and growing. Team members are located across Spain, Serbia, Poland, Portugal, Turkey, Cyprus, Georgia and Armenia. We primarily communicate in Russian.

We’re a tight-knit, high-impact team where every task matters. It’s a dynamic, collaborative environment where smart, curious engineers support one another, share knowledge, and strive for excellence. We encourage open dialogue and host bi-weekly engineering meetups to explore technical topics and showcase team insights.

About the Role

We're looking for an ML Engineer with 5+ years of production experience to strengthen our ML team. We operate as an internal service and centre of excellence for 10+ product teams at Fundraise Up. This means you won't be tied to a single feature: one day you might be optimising donation amounts and upsell offers, and the next you could be building a smart assistant for the admin panel or working on transaction classification.

We actively use not only classical ML, but also RL, and we're expanding our LLM-based solutions — prompt engineering and pipeline design with LLM APIs (OpenAI and equivalents). That's why we're looking for someone with a broad mindset who isn't afraid to experiment and can choose the most effective approach for each task.

The project's main audience and business team are based in the US. Although the product development team is Russian-speaking, you may occasionally need to write in English.

What You’ll Do

• Develop and deploy ML solutions across different business areas using tabular data (uplift models, recommender systems). We are also actively developing projects that will involve e-commerce mechanics.
• Select the most appropriate ML/LLM approaches or propose alternative solutions.
• Build end-to-end ML solutions: data preparation, training, API development, and monitoring.
• Design prompts and LLM API-based pipelines for specific product tasks: classification, content generation, and response quality evaluation.

Requirements

• 5+ years of ML/DS experience solving real product problems
• Strong expertise in ML and mathematical statistics: solid knowledge of classical algorithms (especially gradient boosting); NLP knowledge is a plus
• Metrics-driven mindset: ability to connect ML metrics (ROC-AUC, F1, RMSE) with business metrics (CR, LTV)
• Strong engineering culture: confident in Python with a product-oriented approach to development; we value clean code, knowledge of design patterns, and solid engineering practices
• Data skills: advanced SQL; ability to independently and efficiently build complex datasets in ClickHouse and work with MongoDB
• MLOps understanding: hands-on experience with experiment tracking tools and understanding of production workflows (Docker, Git, CI/CD)
• Autonomy: ability to break down problems, choose the right tech stack (or justify a non-ML solution), and deliver to production

Our Tech Stack

Core: Python (uv, ruff), FastAPI, Pydantic, Docker

Models: CatBoost, Uplift Modeling (CausalML), OpenAI (RAG, Prompt-Engineering)

Data: ClickHouse, MongoDB, pandas, Polars, Redis

MLOps: MLflow, Airflow

Monitoring: Grafana, Sentry

Why work with us

• A strong, collaborative product team that owns what it builds
• Clear product vision and access to real customer feedback from global nonprofit leaders
• Flat structure: no politics, just great work with great people
• Transparent company culture-we share how we’re growing, where revenue comes from, and what’s next
• Long-term focus: we offer equity options and value sustained, meaningful contribution

Benefits

• Private medical insurance for the employee and their family
• 22 paid vacation days per year
• Up to 14 paid public holidays per year
• 5 company-paid sick leave days
• English learning courses.
• Relevant professional education.
• Gym or swimming pool.
• Home Office Setup Assistance: the company offers assistance with purchasing furniture (office chair, office desk, monitor) and other items to create a comfortable workspace.
• Co-working.
• Remote working.
• €50 monthly allowance to cover internet and mobile phone expenses

_{**Please note: All official correspondence from Fundraise Up will exclusively originate from the @fundraiseup.com domain. Exercise caution and ensure the authenticity of emails claiming to be from our company.}

Highlights:

Role: Senior ML-Engineer, Finance

Location: Portugal, Remote

Language: Strong English required (C1)

About Us

Fundraise Up is a modern fundraising platform built to make donating to nonprofits as fast and convenient as possible. We continuously innovate to reduce page load times, boost conversion rates, and support a wide range of payment methods. Each month, people around the world contribute tens of millions of dollars through our platform.

The world’s leading nonprofit organizations trust Fundraise Up. UNICEF, the most prominent UN charity, uses our platform for 100% of its online fundraising. So does the American Heart Association, the Alzheimer’s Association, and many others. We’re proud to maintain a 4.9 out of 5 rating on leading review platforms.

We serve the enterprise segment, with a primary client base in the US, Canada, UK, and Australia.

The Team

Our product development team is currently at 150+ and growing. Team members are located across Spain, Serbia, Poland, Portugal, Turkey, Cyprus, Georgia and Armenia. We primarily communicate in Russian.

We’re a tight-knit, high-impact team where every task matters. It’s a dynamic, collaborative environment where smart, curious engineers support one another, share knowledge, and strive for excellence. We encourage open dialogue and host bi-weekly engineering meetups to explore technical topics and showcase team insights.

About the Role

We're looking for an ML Engineer with 5+ years of production experience to own a high-impact client intelligence initiative. Following a successful proof-of-concept with an external consultant, we are bringing this project fully in-house. The ultimate goal is to generate a comprehensive, enriched list of all potential clients globally — understanding their product requirements, industry verticals, and overall revenue potential — and deploy a scoring model that feeds directly into our sales pipeline.

This is an end-to-end ownership role. You will build from the ground up: data collection, enrichment, modeling, and production deployment. The project is co-managed by company executives and has a high strategic value.

What You’ll Do

• Build a market intelligence data-base via collecting different types of data (scraping, enrichment), fixing data pipeline and creating an ML model for scoring and analysis of the raw data.
• Design and operate scrapers to extract key signals from nonprofit websites, including products used, payment tools, and industry vertical indicators.
• Develop critical filters such as an "Is this website for fundraising?" binary classifier, alongside other features that distinguish high-potential prospects.
• Source and integrate financial data from international nonprofit registries, as well as third-party signals from SimilarWeb and Facebook.
• Store and structure the enriched dataset in our internal database, making it accessible and useful across the broader team for research and analysis.
• Work closely with the sales team to understand their qualification criteria. Analyze disqualified accounts in Salesforce to identify common exclusion patterns and refine scoring accordingly.
• Deploy the scoring model and own the process of integrating outputs into Salesforce in a clean, maintainable way.
• Build a scraper to monitor existing clients' websites, tracking whether Fundraise Up tools are correctly implemented across their properties.

Challenges You'll Navigate

• At the scale of ~1 million domains, expect domain duplicates, inconsistent data, and significant noise. You'll need to develop robust, cost-efficient filtering pipelines.
• A single model won't cover everything — you'll likely build several targeted sub-models tailored to specific verticals and geographies as the project matures.
• All of this needs to be accomplished without incurring high infrastructure or data costs. Pragmatic, scrappy solutions are valued here.

Requirements

• 5+ years of ML/DS experience solving real product problems
• Strong expertise in ML and mathematical statistics: solid knowledge of classical algorithms (especially gradient boosting) and understanding of modern NLP/LLM approaches
• Proven experience with large-scale web scraping and data pipeline construction
• Metrics-driven mindset: ability to connect ML metrics (ROC-AUC, F1, RMSE) with business metrics (conversion rate, LTV)
• Strong engineering culture: confident in Python with a product-oriented approach; we value clean code, knowledge of design patterns, and solid engineering practices
• Advanced SQL; ability to independently build complex datasets in ClickHouse and work with MongoDB
• MLOps understanding: hands-on experience with experiment tracking and production workflows (Docker, Git, CI/CD)
• Autonomy: ability to break down ambiguous problems, choose the right tech stack, and deliver to production

Our Tech Stack

Core: Python (uv, ruff), FastAPI, Pydantic, Docker

Models: CatBoost, Uplift Modeling (CausalML), OpenAI (RAG, Prompt-Engineering)

Data: ClickHouse, MongoDB, pandas, Polars, Redis

MLOps: MLflow, Airflow

Monitoring: Grafana, Sentry

Infra: linux server admin, distributed computation

Bonus points

• Curiosity and a hypothesis-driven mindset
• Ability to communicate complex analytical concepts to non-technical audiences
• Detail-oriented with a strong sense of ownership
• Comfort working in fast-paced, data-rich environments

Why work with us

• A strong, collaborative product team that owns what it builds
• Clear product vision and access to real customer feedback from global nonprofit leaders
• Flat structure: no politics, just great work with great people
• Transparent company culture-we share how we’re growing, where revenue comes from, and what’s next
• Long-term focus: we offer equity options and value sustained, meaningful contribution

Benefits

• Private medical insurance for the employee and their family
• 22 paid vacation days per year
• Up to 14 paid public holidays per year
• 5 company-paid sick leave days
• English learning courses.
• Relevant professional education.
• Gym or swimming pool.
• Home Office Setup Assistance: the company offers assistance with purchasing furniture (office chair, office desk, monitor) and other items to create a comfortable workspace.
• Co-working.
• Remote working.
• €50 monthly allowance to cover internet and mobile phone expenses

_{**Please note: All official correspondence from Fundraise Up will exclusively originate from the @fundraiseup.com domain. Exercise caution and ensure the authenticity of emails claiming to be from our company.}

Highlights

Location: Remote (CET hours preferred)

Compensation: €4,650 - €5,800 gross + stock options

Language: Russian-speaking team, English B1+ required

About Fundraise Up

We’re Fundraise Up - a global fundraising platform built to make donating to nonprofits fast, seamless, and accessible to all. Every month, our technology powers tens of millions of dollars in donations across the globe. We focus on innovation that directly impacts results: faster load times, higher conversion rates, global payment support, and accessibility-first design.

Our platform is trusted by many of the world’s leading nonprofits, including UNICEF, the Alzheimer’s Association, and a wide range of global NGOs. With a 4.9/5 rating across top software review platforms, we’re recognized not just for our impact - but for the quality of the product we deliver.

A Truly Global Product

We operate in the enterprise segment, serving nonprofit organizations across North America, the United Kingdom, Australia, and Europe.

We’re building a large and complex product ecosystem that serves nonprofits, donors, and partners around the world. The platform includes a modern checkout experience and customizable widgets (each a standalone SPA), donor, organization, and partner portals, admin tools, and several internal apps.

Our backend is powered by Node.js (Koa, NestJS) and MongoDB. The frontend stack includes Webpack, Vue.js, and React, with nearly all code written in TypeScript. For high-throughput messaging and background processing, we use Kafka (for millions of events) and Bull (Redis). Analytics data is stored in ClickHouse, and we use Elasticsearch for search.

The Team

We are a distributed team of 160+ product professionals, including 80+ engineers. Our team members are mainly based across Spain, Poland, Portugal, Georgia, Armenia, Serbia, Turkey, and Cyprus. Many of our developers bring 5 - 10+ years of experience, and we foster a culture of deep technical curiosity and knowledge sharing.

Despite our scale, we operate like a focused team - where every task matters and every voice is heard. We value thoughtful collaboration, strong engineering practices, and a product mindset. You’ll be joining a team where quality, mentorship, and mutual respect come first.

About the Role

As a Senior Data Engineer, you will be responsible for designing, building, and optimizing scalable data pipelines and ETL/ELT processes.

At the initial stage, you will be the first engineer in this direction, taking full ownership of the data domain. As the product and data needs grow, we plan to expand the team, and you will have the opportunity to contribute to its development.

This role requires a high level of autonomy and ownership, combined with close collaboration with analytics, Data Science, and engineering teams.

What You’ll Do

• Design and evolve the architecture of the data platform and storage systems.
• Build reliable ETL/ELT processes and develop scalable data pipelines for delivering data into a centralized analytical warehouse.
• Maintain and further develop the Data Warehouse.
• Collaborate with engineering and analytics teams on system design and architectural decisions.
• Ensure data governance and maintain high standards of data quality.
• Write and optimize queries for MongoDB and ClickHouse.
• Manage and maintain workflows in Airflow.

Requirements

• Experience: 7+ years of experience as a Data Engineer.
• Programming: 5+ years of experience with Python, TypeScript, Node.js, Kafka.
• Strong understanding of data processing algorithms and principles.
• Hands-on experience with ClickHouse, Airflow, Amazon S3, Git, Docker.
• Solid understanding of Data Lake and Data Warehouse architectures.
• Experience working with large-scale data and query optimization.
• Ability to work collaboratively toward shared goals.
• Strong sense of ownership, responsibility, and proactivity.
• English level: B1+.

Nice to Have

• Experience with Apache Parquet, MLflow, MongoDB. 

Why work with us

• A strong, collaborative product team that owns what it builds
• Clear product vision and access to real customer feedback from global nonprofit leaders
• Flat structure: no politics, just great work with great people
• Transparent company culture-we share how we’re growing, where revenue comes from, and what’s next
• Long-term focus: we offer equity options and value sustained, meaningful contribution

Benefits

• Private medical insurance for the employee and their family
• 22 paid vacation days per year
• Up to 14 paid public holidays per year
• 5 company-paid sick leave days
• English learning courses.
• Relevant professional education
• Gym or swimming pool
• Home Office Setup Assistance: the company offers assistance with purchasing furniture (office chair, office desk, monitor) and other items to create a comfortable workspace
• Co-working
• €50 monthly allowance to cover internet and mobile phone expenses
• Remote working

_{**Please note: All official correspondence from Fundraise Up will exclusively originate from the @fundraiseup.com domain. Exercise caution and ensure the authenticity of emails claiming to be from our company.}

Why Valtech? We’re the experience innovation company - a trusted partner to the world’s most recognized brands. To our people we offer growth opportunities, a values-driven culture, international careers and the chance to shape the future of experience. 

The opportunity

At Valtech, you’ll find an environment designed for continuous learning, meaningful impact, and professional growth. Whether you're pioneering new digital solutions, challenging conventional thinking or building the next generation of customer experiences, your work will help transform industries. 

We are proud of: 

• The work we do and the innovation we drive 
• Our values of share, care and dare 
• A workplace culture that fosters creativity, diversity and autonomy 
• Our borderless, global framework, which enables seamless collaboration 

The role  

Valtech is looking for a Flutter Lead Developer to shape our cross-platform mobile and web application landscape. In this role, you will own the technical strategy, architecture, and delivery of scalable, high-performing Flutter applications that power digital experiences across our business. Working at the intersection of design, development, and product, you’ll lead a cross-functional team of developers and testers, define best practices, and transform ideas into elegant, responsive, and maintainable apps. You will play a key role in driving technical excellence and Flutter adoption, while mentoring others and contributing to a culture of innovation and quality.

Role responsibilities

• Lead Flutter mobile app development across Android / iOS.
• Focus on best engineering practices for quality, clean code, testing & observability.
• ⁠Architect scalable, maintainable, and performant mobile solutions.
• Mentor and guide Flutter developers; conduct code reviews.
• Collaborate with product, design, and backend teams.
• Ensure code quality, testing, and CI/CD integration.
• Stay updated with Flutter/Dart trends and best practices.
• Manage technical risks and project timelines.

Must have qualifications

To be considered for this role, you must meet the following essential qualifications: 

• 7+ years of total development experience, with at least 3+ years in Flutter development. 
• Strong knowledge of data structures, modern design patterns, and best practices in object-oriented software engineering. 
• The ability to write clean and neat code that is easy to maintain. 
• The ability to cover all (or almost all) your work with tests. 
• Understanding the principles of user interface design. 
• Expert knowledge of the Dart language.
• Experience developing native applications (Android/iOS) will be a plus. 
• Knowledge of development and configuration tools (Git, Jira, Jenkins, etc.). 
• Experience with RESTful APIs to connect to back-end services. 
• Knowledge of modern architectural patterns in mobile development (BLoC, MVVM) and the principles of functional programming. 
• Understanding the principles of DRY and SOLID principles. 
• Experience in creating multi-module projects.
• Advanced level of English, both written and verbal.

If you do not meet all the listed qualifications or have gaps in your experience, we still encourage you to apply. At Valtech, we recognize that talent comes in many forms, and we value diverse perspectives and a willingness to learn. 

Commitment to reaching all kinds of people 

We design experiences that work for all kinds of people - and that starts with our own teams. At Valtech, we’re intentional about building an inclusive culture where everyone feels supported to grow, thrive and achieve their goals. No matter your background, you belong here. Explore our Diversity & Inclusion site to see how we’re creating a more equitable Valtech for all. 

The benefits  

Beyond a competitive compensation package, we offer: 

• Flexibility, with remote and hybrid work options (country-dependent) 
• Career advancement, with international mobility and professional development programs 
• Learning and development, with access to cutting-edge tools, training and industry experts 

Our benefits are tailored to each location. Your Talent Partner will provide full details during the hiring process. 

Your application process

Once you apply, our Talent Acquisition team will review your application. Your CV should cover key information on relevant experiences and expertise. We do not require information such as age, gender, marital status, or a headshot in your application. We review all candidates based on skills, experience, and potential.

⚠️ Beware of recruitment fraud!

We are committed to inclusion and accessibility. If you need reasonable accommodations during the interview process, please either indicate it in your application or let your Talent Partner know. 

About Valtech

Valtech is the experience innovation company that exists to unlock a better way to experience the world. By blending crafts, categories, and cultures, we help brands unlock new value in an increasingly digital world. 

At the intersection of data, AI, creativity, and technology, we drive transformation for leading organizations, including L’Oréal, Mars, Audi, P&G, Volkswagen Dolby, and more. 

At Valtech, we don’t just talk about transformation. We make it happen. Our people are the heart of our success, and we foster a workplace where everyone has the support to thrive, grow and innovate. 

Are you ready to create what’s next? Join us.

Why Valtech? We’re the experience innovation company - a trusted partner to the world’s most recognized brands. To our people we offer growth opportunities, a values-driven culture, international careers and the chance to shape the future of experience. 

The opportunity

At Valtech, you’ll find an environment designed for continuous learning, meaningful impact, and professional growth. Whether you're pioneering new digital solutions, challenging conventional thinking or building the next generation of customer experiences, your work will help transform industries. 

We are proud of: 

• The work we do and the innovation we drive 
• Our values of share, care and dare 
• A workplace culture that fosters creativity, diversity and autonomy 
• Our borderless, global framework, which enables seamless collaboration 

The role  

Valtech is looking for a Flutter Lead Developer to shape our cross-platform mobile and web application landscape. In this role, you will own the technical strategy, architecture, and delivery of scalable, high-performing Flutter applications that power digital experiences across our business. Working at the intersection of design, development, and product, you’ll lead a cross-functional team of developers and testers, define best practices, and transform ideas into elegant, responsive, and maintainable apps. You will play a key role in driving technical excellence and Flutter adoption, while mentoring others and contributing to a culture of innovation and quality.

Role responsibilities

• Lead Flutter mobile app development across Android / iOS.
• Focus on best engineering practices for quality, clean code, testing & observability.
• ⁠Architect scalable, maintainable, and performant mobile solutions.
• Mentor and guide Flutter developers; conduct code reviews.
• Collaborate with product, design, and backend teams.
• Ensure code quality, testing, and CI/CD integration.
• Stay updated with Flutter/Dart trends and best practices.
• Manage technical risks and project timelines.

Must have qualifications

To be considered for this role, you must meet the following essential qualifications: 

• 7+ years of total development experience, with at least 3+ years in Flutter development. 
• Strong knowledge of data structures, modern design patterns, and best practices in object-oriented software engineering. 
• The ability to write clean and neat code that is easy to maintain. 
• The ability to cover all (or almost all) your work with tests. 
• Understanding the principles of user interface design. 
• Expert knowledge of the Dart language.
• Experience developing native applications (Android/iOS) will be a plus. 
• Knowledge of development and configuration tools (Git, Jira, Jenkins, etc.). 
• Experience with RESTful APIs to connect to back-end services. 
• Knowledge of modern architectural patterns in mobile development (BLoC, MVVM) and the principles of functional programming. 
• Understanding the principles of DRY and SOLID principles. 
• Experience in creating multi-module projects.
• Advanced level of English, both written and verbal.

If you do not meet all the listed qualifications or have gaps in your experience, we still encourage you to apply. At Valtech, we recognize that talent comes in many forms, and we value diverse perspectives and a willingness to learn. 

Commitment to reaching all kinds of people 

We design experiences that work for all kinds of people - and that starts with our own teams. At Valtech, we’re intentional about building an inclusive culture where everyone feels supported to grow, thrive and achieve their goals. No matter your background, you belong here. Explore our Diversity & Inclusion site to see how we’re creating a more equitable Valtech for all. 

The benefits  

• Private health insurance
  We hope you will never need it, but nevertheless, we offer private health insurance to all our employees.

• Education program
  We never stop learning, that’s why we offer our employees an educational program with training and certification.

• Wellbeing program
  We all deserve to live a healthy and well-balanced life. It's not an option, it's a necessity!

• Free beverages
  Enjoy free coffee, drinks, and snacks at work, or join one of our famous company dinners.

• Events
  We enjoy spending time together, not only at work. Ski trips, carting, laser-tag, wine tasting, picnics, cooking classes… you name it – we’ve done it! There are plenty of cool events to join and to get to know your colleagues.

• Competitive conditions
  Besides a competitive salary and 24 days of vacation, you will join annual company events with the whole team.

• Challenging projects
  Ready for a challenge? We guarantee you'll find challenging projects at Valtech!
  
  
• Cool colleagues
  What's the most important thing in a job? Cool colleagues with whom you spent most of the time during the week. We have a lot of them!
  
  
• Honest feedback
  Honesty, openness and respect are among our core values. We encourage an open feedback culture in order to build trust and grow together.

Your application process

Once you apply, our Talent Acquisition team will review your application. Your CV should cover key information on relevant experiences and expertise. We do not require information such as age, gender, marital status, or a headshot in your application. We review all candidates based on skills, experience, and potential.

⚠️ Beware of recruitment fraud!

We are committed to inclusion and accessibility. If you need reasonable accommodations during the interview process, please either indicate it in your application or let your Talent Partner know. 

About Valtech

Valtech is the experience innovation company that exists to unlock a better way to experience the world. By blending crafts, categories, and cultures, we help brands unlock new value in an increasingly digital world. 

At the intersection of data, AI, creativity, and technology, we drive transformation for leading organizations, including L’Oréal, Mars, Audi, P&G, Volkswagen Dolby, and more. 

At Valtech, we don’t just talk about transformation. We make it happen. Our people are the heart of our success, and we foster a workplace where everyone has the support to thrive, grow and innovate. 

Are you ready to create what’s next? Join us.

Key Responsibilities

• Design, Develop, and Maintain Automated Test Suites: Build and execute automated test scripts to cover end-to-end testing for web applications, mobile apps (iOS/Android), and APIs.
• Cross-Platform Testing: Develop automated tests across multiple platforms, ensuring consistency in test quality and reporting for web, mobile, and API testing.
• Test Automation Frameworks: Contribute to the development and improvement of test automation frameworks using tools such as Playwright, Espresso, XCUITest or similar, ensuring scalability and maintainability.
• CI/CD Integration: Collaborate with the Platform team to ensure automated tests are smoothly integrated into CI/CD pipelines for rapid feedback on product quality.
• End-to-End Testing: Execute functional, regression, performance, and load testing for complex workflows across platforms, ensuring product reliability and quality.
• Defect Tracking and Reporting: Identify, log, and track defects through to resolution, providing clear feedback to developers and ensuring timely fixes.
  
  

Skills and Qualifications

• Proven Experience in Test Automation: Experience in automated testing across web, mobile (iOS/Android), and APIs, with hands-on experience using automation tools such as Selenium, Playwright, etc.
• Strong Programming Skills: Proficiency in programming languages used for test automation (e.g. Kotlin, TypeScript, Ruby, or similar).
• API Testing: Experience in automating RESTful API testing using tools like Postman, RestAssured, or similar.
• CI/CD Pipeline Integration: Familiarity with integrating automated tests into CI/CD pipelines using tools like Github Actions, CircleCI, etc.
• Test Framework Development: Experience in building or extending test automation frameworks, ensuring they are scalable and maintainable.
• Cross-Browser and Cross-Device Testing: Familiarity with ensuring test execution across multiple browsers (e.g., Chrome, Safari, Firefox) and mobile devices (both iOS and Android). Experience with cloud-based testing environments (e.g., BrowserStack)
• Agile Methodologies: Experience working in Agile environments, participating in sprint planning, daily stand-ups, and retrospectives.
• Problem-Solving Mindset: Ability to troubleshoot issues across multiple platforms and work with cross-functional teams to resolve them effectively.
• Understanding of QA Principles: Strong knowledge of QA methodologies, including functional testing, regression testing, performance testing, and load testing.

About the Job

On our path to becoming the most visited online curated marketplace for special objects, our Engineering team is on a mission to deliver the best experience across our platforms by building best-in-class products for search & discovery, bidding, curation, logistics, payments, and support. 

We're a scale-up with customer-facing challenges dealing with high-scale (75k auctions per week) and high traffic (more than 10 million visitors per month). As a Software Engineer, you’ll support one of our 3 verticals - Demand, Supply, or Fulfilment - improving and delivering product innovations for our platform. 

Working in small, fully autonomous, and highly collaborative Agile teams, you will build scalable, maintainable, and resilient microservices and features. That's why we are looking for bold, curious and open developers! Are you ready to join?

What you will do 

• Build: Design, develop, test, deploy, maintain and improve. You’ll be part of a team that is end-to-end responsible for their own microservices.
• Collaborate: Work closely with product designers, product owners, front, back, and mobile engineers to share new ideas and make our processes even more efficient.
• Growth: Support our great engineering culture, by documenting and advocating for best development practices - constantly improving the quality of our products by fixing bugs and refactoring the code base where necessary.
• Learn: Boost your career by testing new technologies and participating in our Technical Week, a week dedicated to promoting creativity (after 2 product sprints), innovation, and knowledge sharing across domains.

What you’ll bring

As Software Engineer, you already understand the full life cycle of web development and see opportunities in front of you. You're curious, solution-oriented and have a strong customer focus. Our stack is mainly focused around Ruby, however, if you’re passionate about learning new things then prior experience with Ruby is not essential. Next to this:

• At least, 4+ years of experience with customer-facing products in related industries, e.g. e-commerce, fintechs, SaaS
• At least 4+ years with software development, in specific OOP (object-oriented programming)
• Experience designing, implementing, and deploying backend services, with a focus on high availability, low latency, and consistency.
• Good understanding of APIs design
• Familiarity with SQL and relational databases
• Excellent communication in English
• Comfortable raising concerns, sharing new ideas, documenting, and finding opportunities for solution alternatives.

As a passionate engineer, you bring these values to Catawiki:

• You strive to be a great team player and don’t shy away from new challenges.
• You are someone who takes initiative and is ready to jump in and help if needed.
• You possess a "growth mindset" in which you take the initiative to further your personal skill set as a software developer, whether by learning new skills and/or technologies or by seeking new opportunities.

Where you’ll be

This role is based in Lisbon, Portugal. We offer an excellent relocation package for people living outside of Portugal.

When in Portugal, here is what we can offer you

• You'll be part of an enthusiastic, highly motivated team of 850+ Catawikians.
• International and fast-growing organization with over 50 nationalities.
• 22 days of Holiday days + National Holidays
• Health Insurance
• Meal Card per working day on top of salary
• Working-from-home Allowance
• Hybrid way of working between home and office
• Flexible working hours policy
• Holistic Wellbeing Programme including: clinical services, single-session therapy, wellness support and more.
• Tailored Learning & Development program

About Tripadvisor 

The Tripadvisor Group connects people to experiences worth sharing, and aims to be the world’s most trusted source for travel and experiences. We leverage our brands, technology, and capabilities to connect our global audience with partners through rich content, travel guidance, and two-sided marketplaces for experiences, accommodations, restaurants, and other travel categories. The subsidiaries of Tripadvisor, Inc. (Nasdaq: TRIP), include a portfolio of travel brands and businesses, including Tripadvisor, Viator, and TheFork.

The Tripadvisor Experiences Engineering team is distributed across Europe and is responsible for the platform, mobile apps and all their supporting infrastructure. We run the systems that help operators build their businesses and those which enable third parties to utilise our inventory. We provide the tools which help our customer services team provide world class service to travellers and operators internationally.

About the Role

We're looking for a Principal Product Engineer who pairs deep engineering craft with strong product instincts. You'll work across the stack - mobile, web, backend - wherever the highest-leverage problem happens to live that quarter. You don't wait for a perfectly scoped ticket; you partner with product, design, and data to figure out what's worth building, then ship it end-to-end.

We expect breadth. We also expect real depth in the mobile app ecosystem - our customer-facing experiences live there. But we're not hiring a mobile only specialist. We're hiring a generalist with mobile chops who can lead an iOS architecture review on Tuesday and untangle a backend latency regression on Wednesday. 

This role is open to candidates based within a commutable distance (generally up to 1.5 hours).

What you will do

• Identify, scope, and ship the changes that move business metrics - across mobile, web, services, and data layers
• Architect long-lasting systems that hold up under real production conditions: performance, reliability, scalability, offline behavior, consistency
• Lead technical design reviews across teams, weighing trade-offs not just in code but in product impact, time-to-ship, and operational cost
• Drive operational maturity wherever it's weakest - release management, observability, incident response, performance monitoring - including in the mobile apps
• Partner with PMs, designers, and engineering leaders to shape what we build, why, and in what order; you're a peer in those conversations, not a downstream implementer
• Set the technical bar for the org by example: write the prototype, prove the pattern, then teach it
• Communicate trade-offs clearly to engineers, product partners, and senior stakeholders

What we’re looking for

• 10+ years of software experience, with significant time still spent hands-on in code - track record of shipping product-impacting work end-to-end, not just owning a layer
• Real depth in the mobile app ecosystem (iOS and/or Android, with strong fluency in Swift and/or Kotlin and the surrounding ecosystem - offline sync, push, auth, persistence, networking, REST/GraphQL) - and credible breadth beyond it
• Demonstrated breadth: you've worked seriously in at least one of {web frontend, backend services, data/infra, platform tooling} alongside mobile, and can hold your own in code review there
• Strong product judgment: you've made calls about what not to build, and can defend them with evidence
• Comfort troubleshooting in production across stacks - crash analysis, latency tracing, release-health debugging
• Excellent cross-functional collaboration; you make the people around you better

Nice To Have

• Background in marketplaces, bookings, or other transactional consumer products
• Time spent close to data - experimentation, analytics instrumentation, or ML-adjacent work

What We Offer 

• Competitive compensation packages (routinely benchmarked against the latest industry data), including base salary and annual bonuses
• “Work your way” with flexibility to suit your lifestyle. Tripadvisor Group takes a remote-friendly approach to collaboration across a worldwide team, with the option to join on-site as often as you’d like or as required by your team.
• Flexible schedule. Work-life balance is ingrained in our culture by design. Trust and accountability make it work.
• Donation matching. Give back? Give more! We match qualifying charitable donations annually.
• Tuition assistance. Want to level up your career? We love to hear it! Receive annual support for qualified programs.
• Lifestyle benefit. An annual benefit to spend on yourself. Use it on travel, wellness, or whatever suits you.
• Travel perks. We believe that travel is employee development, so we provide discounts and more.
• Employee assistance program. We’re here for you with resources and programs to help you through life’s challenges.
• Health benefits. We offer great coverage and competitive premiums.
• Generous referral scheme. Help us grow and be rewarded with generous awards for referring successful candidates.

Our Cultural Pillars:

Traveler first

We exist to create value for our customer, the traveler. We enable our suppliers and partners to unlock this value. Their collective behaviors and insights are what drives us. 

Execution is our edge

We act fast, experiment, learn from failure, iterate, and improve the solutions of tomorrow across every aspect of our business. Our execution is agile, data-driven, prioritised, and built to scale. We assume no problem is someone else’s problem and finish what can be done today, knowing tomorrow will bring fresh challenges. 

We succeed together

The best outcomes are driven by empathic, humble, and diverse subject matter experts working toward shared goals. We collaborate relentlessly, challenge assumptions, give actionable feedback, and set each other up for success through empowered teams with a clear charter. We transparently take ownership of our growth, individually and as a team. We celebrate the quality of our effort, our learnings, and our collective achievements.

We strive to create an accessible and inclusive experience for all candidates. If you need a reasonable accommodation during the application or the recruiting process, please make sure to reach out to your individual recruiter or our team at AccessibleRecruiting@tripadvisor.com.

If you have any additional questions about careers at Tripadvisor you can email us at recruitment@tripadvisor.com. We have all the answers!

Why Valtech? We’re the experience innovation company - a trusted partner to the world’s most recognized brands. To our people we offer growth opportunities, a values-driven culture, international careers and the chance to shape the future of experience. 

The opportunity

At Valtech, you’ll find an environment designed for continuous learning, meaningful impact, and professional growth. Whether you're pioneering new digital solutions, challenging conventional thinking or building the next generation of customer experiences, your work will help transform industries. 

We are proud of: 

• The work we do and the innovation we drive 
• Our values of share, care and dare 
• A workplace culture that fosters creativity, diversity and autonomy 
• Our borderless, global framework, which enables seamless collaboration 

The role  

Valtech is looking for a Flutter Lead Developer to shape our cross-platform mobile and web application landscape. In this role, you will own the technical strategy, architecture, and delivery of scalable, high-performing Flutter applications that power digital experiences across our business. Working at the intersection of design, development, and product, you’ll lead a cross-functional team of developers and testers, define best practices, and transform ideas into elegant, responsive, and maintainable apps. You will play a key role in driving technical excellence and Flutter adoption, while mentoring others and contributing to a culture of innovation and quality.

Role responsibilities

• Lead Flutter mobile app development across Android / iOS.
• Focus on best engineering practices for quality, clean code, testing & observability.
• ⁠Architect scalable, maintainable, and performant mobile solutions.
• Mentor and guide Flutter developers; conduct code reviews.
• Collaborate with product, design, and backend teams.
• Ensure code quality, testing, and CI/CD integration.
• Stay updated with Flutter/Dart trends and best practices.
• Manage technical risks and project timelines.

Must have qualifications

To be considered for this role, you must meet the following essential qualifications: 

• 7+ years of total development experience, with at least 3+ years in Flutter development. 
• Strong knowledge of data structures, modern design patterns, and best practices in object-oriented software engineering. 
• The ability to write clean and neat code that is easy to maintain. 
• The ability to cover all (or almost all) your work with tests. 
• Understanding the principles of user interface design. 
• Expert knowledge of the Dart language.
• Experience developing native applications (Android/iOS) will be a plus. 
• Knowledge of development and configuration tools (Git, Jira, Jenkins, etc.). 
• Experience with RESTful APIs to connect to back-end services. 
• Knowledge of modern architectural patterns in mobile development (BLoC, MVVM) and the principles of functional programming. 
• Understanding the principles of DRY and SOLID principles. 
• Experience in creating multi-module projects.
• Advanced level of English, both written and verbal.

If you do not meet all the listed qualifications or have gaps in your experience, we still encourage you to apply. At Valtech, we recognize that talent comes in many forms, and we value diverse perspectives and a willingness to learn. 

Commitment to reaching all kinds of people 

We design experiences that work for all kinds of people - and that starts with our own teams. At Valtech, we’re intentional about building an inclusive culture where everyone feels supported to grow, thrive and achieve their goals. No matter your background, you belong here. Explore our Diversity & Inclusion site to see how we’re creating a more equitable Valtech for all. 

The benefits  

This is a position based in Portugal. 

Beyond a competitive compensation package, we offer: 

• Flexibility, with remote and hybrid work options (country-dependent) 
• Career advancement, with international mobility and professional development programs 
• Learning and development, with access to cutting-edge tools, training and industry experts 

Our benefits are tailored to each location. Your Talent Partner will provide full details during the hiring process. 

Your application process

Once you apply, our Talent Acquisition team will review your application. Your CV should cover key information on relevant experiences and expertise. We do not require information such as age, gender, marital status, or a headshot in your application. We review all candidates based on skills, experience, and potential.

⚠️ Beware of recruitment fraud!

We are committed to inclusion and accessibility. If you need reasonable accommodations during the interview process, please either indicate it in your application or let your Talent Partner know. 

About Valtech

Valtech is the experience innovation company that exists to unlock a better way to experience the world. By blending crafts, categories, and cultures, we help brands unlock new value in an increasingly digital world. 

At the intersection of data, AI, creativity, and technology, we drive transformation for leading organizations, including L’Oréal, Mars, Audi, P&G, Volkswagen Dolby, and more. 

At Valtech, we don’t just talk about transformation. We make it happen. Our people are the heart of our success, and we foster a workplace where everyone has the support to thrive, grow and innovate. 

Are you ready to create what’s next? Join us.

Scopely is looking for a Principal Security Engineer to join our Information Security team in Spain/Portugal on a hybrid basis.

Our security team is dedicated to ensuring the security of our top games. This involves collaborating closely with game studios to develop and implement comprehensive security strategies throughout the game design and development lifecycle.

In addition, this role will drive the application of AI to transform how security is delivered across Product Security, Security Operations, and Security Engineering, improving efficiency, scalability, and impact.

What You Will Do

Game & Product Security Leadership

• Partner with game studios to develop comprehensive security strategies for game design and development
• Conduct threat modeling, vulnerability assessments, and security audits across all phases of game development
• Design and implement security controls and countermeasures to mitigate risks and ensure compliance with company policies, standards, and industry norms
• Collaborate with game teams to advocate for secure coding practices and integrate security at every level of the software development lifecycle
• Coordinate and participate in penetration tests and game feature security assessments
• Provide expert-level technical guidance to game teams to assist in securing games and backend infrastructure
• Translate business priorities, technical constraints, and threat intelligence into actionable security roadmaps

AI-Driven Security Transformation & Automation

• Identify and implement opportunities to apply AI to:
• Vulnerability triage, prioritization, and remediation
• Security operations workflows (alert analysis, investigation, response)
• Product security processes (code analysis, findings analysis, pentesting support)
• Build AI-driven workflows, tools, and agents to reduce manual effort and improve speed and accuracy
• Use AI to improve vulnerability management through triage support, risk classification, remediation guidance, and findings analysis
• Partner with Security Operations to improve detection, triage,investigation and response through automation and AI-assisted analysis
• Integrate AI capabilities into existing security platforms (e.g., Wiz, SIEM, Jira, IAM systems)
• Develop reusable AI-enabled components that scale across teams and studios
• Establish practical guardrails for the safe and effective use of AI in security, including data handling, quality control, and human review
• Define success metrics for AI-enabled workflows, including productivity gains, response times, remediation throughput, and signal quality

Security Engineering & Platform Enablement

• Design and implement scalable security solutions across cloud and backend systems
• Work closely with information security domain owners to ensure games adhere to all relevant security policies, standards, and regulatory requirements
• Develop and maintain comprehensive documentation on security architectures, processes, and decisions for technical and non-technical stakeholders
• Improve security engineering efficiency through automation and tooling
• Stay updated with the latest security technologies, trends, threats, and AI capabilities, continuously improving security practices

Stakeholder Engagement & Leadership

• Frequently interact with game studio leaders to understand their roadmaps, risk posture, and how information security can enable them to execute their vision securely
• Develop security-related roadmaps in partnership with game teams
• Regularly report to Information Security and Studio management on the threat landscape and security posture of games
• Act as a thought leader using both qualitative and quantitative risk assessment frameworks
• Lead and/or assist in security incidents and investigations

What We're Looking For

• 8+ years of experience in Product Security, software development, or cybersecurity
• Proven track record in securing large-scale software applications and systems
• Strong experience building automation and security tooling
• Hands-on experience applying AI/LLMs to operational workflows, including designing, evaluating, and safely deploying AI-assisted systems is highly desirable
• Ability to effectively communicate business risk and technical information clearly to both technical and non-technical audiences

Technical Expertise

• Expertise in modern programming languages such as Python and C#
• Strong understanding of:
• Application and product security
• Vulnerability management and pentesting methodologies
• API and backend security
• Experience with mobile application penetration testing, including traffic interception, runtime analysis and API security.
• Experience with modern development ecosystems, CI/CD pipelines, APIs, and developer platforms.
• Strong, hands-on experience with cloud computing environments including:
• AWS shared responsibility model
• IAM and access control
• Network security in the cloud
• Strong understanding of securing cloud workloads including configuration, deployment, and auditing
• Deep knowledge of Linux security practices

Additional Strengths

• Demonstrated ability to think like both an attacker and defender
• Experience architecting for and managing high-scale, high-velocity workloads in AWS preferred
• Familiarity with security frameworks (e.g., OWASP, NIST Cybersecurity Framework) and compliance regulations (e.g., GDPR, CCPA, ISO 27001)
• Excellent analytical, problem-solving, and decision-making skills
• Exceptional communication and leadership skills, with the ability to influence across teams

Bonus Points

• Experience applying AI to security, automation, or developer workflows
• Previous experience at a game company
• Familiarity with:
• RAG architectures
• Vector databases (e.g., pgvector)
• AI-assisted code analysis or pentesting

Please ensure that the résumé/CV you attach is written in English.

Let's start with the role

You will join an autonomous Agile team and work closely with the Product Owner, Agile Delivery Lead, Automation Testers, and other Software Engineers to create a competitive advantage for Kaizen and offer a unique online experience to our customers. Besides being part of the Agile team, you will work closely talented backend professional within the Backend Chapter.

Senior Software engineers in Kaizen are responsible for a multitude of projects, from our customer-facing websites and mobile applications to our admin and internal tools and backend services, most of them withstanding high volume / traffic.

• Assume full responsibility for our applications on an engaging development journey.
• Create new solutions and see them through, from conception to production;
• Turn requirements into simple and sophisticated technological systems. Our large scale, highly available infrastructure is at the core of that challenge;
• Play a central role on Design, build, and maintain efficient, reusable, and reliable code;
• Research new technologies to find new and efficient ways to solve day to day challenges;
• Ship high-value features quickly;
• Challenge the status quo and improve the team and product;

Most of our sites and services are written in in C# / ASP.NET and new services are written in .NET Core. New applications use vue.js or Angular in the front-end while older ones use server-rendered (Razor) views in combination with jQuery. Microsoft Orleans enables our scalable and robust distributed applications. MS SQL Server is used for most of our storage needs, but also Redis and ElasticSearch are used when it makes sense to do so. RabbitMQ is our go-to message broker. We use Gitlab for code versioning and CI, and the Atlassian stack for tickets and documentation.

What you'll bring

• At least 6+ years of experience developing production-level software using .NET Core;
• Proficient in C# and MVC;
• Experience with Testing/Metrics Monitoring/Logging on a large scale distributed system;
• Experience with Microservices architecture;
• Experience with asynchronous flows using message brokers;
• Good understanding of basic web technologies, such as HTTP, REST, etc.;
• Practical knowledge of algorithms and design patterns;
• Passionate about delivering high-quality code;
• Fluent in English, both oral and written.

Nice to have:

• Expertise in concurrency, multi-threading, and event-driven architecture;

Kaizen Gaming Perks

• 🕑 Hybrid way of working
• 🏃 A buddy will support you with your onboarding
• 💸 Competitive pay & bonus scheme
• 👩‍⚕️ Private health insurance for you and your family
• 💰 Monthly meal allowance 
• ⭐Developmental 360° feedback framework
• 📚 Unlimited access to Udemy & continuous training

#LI-Hybrid

#LI-Remote

About this job

Teamwork plays an integral role in the success of our tech strategy.  In JUMO, our teams have exposure to a broad range of the best new technology, and are trusted with the autonomy and flexibility to explore, innovate and find creative solutions to interesting challenges.  With this, everyone has the opportunity to contribute to our mission of enabling equal access to finance opportunities.  We have chosen our tech stack carefully and believe in using the best tools out there.

Our software engineering team is responsible for building our market-leading banking as a service platform & products, enabling real-time access to funds at the lowest possible operating cost.  When integrated into JUMO’s platform, it enables our partners to offer loans, savings and a wide range of financial choices to a new group of customers.

As a Junior Software Engineer, you will be accountable for solving complex technical problems with solutions that are scalable, testable, maintainable, and efficient, whilst continuing to improve our engineering practices. This position reports to a Tech Lead.

You will

• You will deliver across the SDLC to build a highly scalable distributed system
• Assist in defining the team's roadmap in line with the company and technology vision.
• Architect services and systems using well accepted design patterns to allow for iterative, autonomous development and future scaling.

• Design, implement, test, deploy, and support our products and services.
• Review code developed by other developers and provide feedback.  
• Guide the team to consistently write production-ready code that is easily testable, easily understood by other developers and accounts for edge cases and errors.
• Anticipate and communicate blockers, delays and cost ballooning within their team’s projects, before they require escalation.
• Contribute to existing documentation or educational content and drive best practices and engineering excellence.

You will need

• 1 - 2 years’ of experience with Kotlin / Java / Scala, and a cloud-based infrastructure, ideally AWS. Python experience will be an added advantage.
• Experience designing, developing and testing software.
• Some experience with the design and development of high-volume/low-latency services.
• Business and operational awareness.
• Good communication skills & EQ – able to work in a diverse team.

We ask a lot of each other at JUMO, but we give a lot too.

You will love

• Work in an agile cross-functional team, delivering quality code you can be proud of.
• Work with a modern but pragmatic Tech Stack (i.e. Kotlin + Spring Boot for Backend, TypeScript + React for Web and Mobile, Docker, Terraform, Kubernetes, Kafka, Flink, Datadog, GitHub Actions + ArgoCD for CI/CD, AWS), building a highly scalable distributed system
• Ensure consistency and accuracy when required.
• Led and supported by an experienced, hands-on Tech Lead.
• Collaborating with smart, engaging people.
• Working for impact.
• Growing and learning continuously, with loads of encouragement and support.
• Boldly taking risks as we navigate new challenges.
• Flexible work practices enabling your best delivery.
• Being autonomous and empowered to lead.

Remote First

Our environment is designed to foster innovation and enable collaboration. We operate a remote-first approach that enables us with the flexibility to work and live where we are most productive. We work between the UTC and UTC+3 time zones and currently have team members based in South Africa, Portugal and Kenya.

Diversity and Inclusion

At JUMO, we firmly believe that diversity strengthens our teams. We are dedicated to fostering an inclusive recruitment process that cultivates an environment where all individuals can be authentic, collaborate, and thrive.

This role is based in Lisbon, Portugal. We offer relocation support for candidates who are open to moving to Portugal.

About the Job

On our path to becoming the most visited online curated marketplace for special objects, our Engineering team is on a mission to deliver the best experience across our platforms by building best-in-class products for search & discovery, bidding, curation, logistics, payments, and support. 

We're a scale-up with customer-facing challenges dealing with high-scale (75k auctions per week) and high traffic (more than 10 million visitors per month). As a Software Engineer, you’ll support one of our 3 verticals - Demand, Supply, or Fulfilment - improving and delivering product innovations for our platform. 

Working in small, fully autonomous, and highly collaborative Agile teams, you will build scalable, maintainable, and resilient microservices and features. That's why we are looking for bold, curious and open developers! Are you ready to join?

What you will do 

• Build: Design, develop, test, deploy, maintain and improve. You’ll be part of a team that is end-to-end responsible for their own microservices.
• Collaborate: Work closely with product designers, product owners, front, back, and mobile engineers to share new ideas and make our processes even more efficient.
• Growth: Support our great engineering culture, by documenting and advocating for best development practices - constantly improving the quality of our products by fixing bugs and refactoring the code base where necessary.
• Learn: Boost your career by testing new technologies and participating in our Technical Week, a week dedicated to promoting creativity (after 2 product sprints), innovation, and knowledge sharing across domains.

What you’ll bring

As Software Engineer, you already understand the full life cycle of web development and see opportunities in front of you. You're curious, solution-oriented and have a strong customer focus. Our stack is mainly focused around Ruby, however, if you’re passionate about learning new things then prior experience with Ruby is not essential. Next to this:

• At least, 4+ years of experience with customer-facing products in related industries, e.g. e-commerce, fintechs, SaaS
• At least 4+ years with software development, in specific OOP (object-oriented programming)
• Experience designing, implementing, and deploying backend services, with a focus on high availability, low latency, and consistency.
• Good understanding of APIs design
• Familiarity with SQL and relational databases
• Excellent communication in English
• Comfortable raising concerns, sharing new ideas, documenting, and finding opportunities for solution alternatives.

As a passionate engineer, you bring these values to Catawiki:

• You strive to be a great team player and don’t shy away from new challenges.
• You are someone who takes initiative and is ready to jump in and help if needed.
• You possess a "growth mindset" in which you take the initiative to further your personal skill set as a software developer, whether by learning new skills and/or technologies or by seeking new opportunities.

Where you’ll be

This role is based in Lisbon, Portugal. We offer an excellent relocation package for people living outside of Portugal.

When in Portugal, here is what we can offer you

• You'll be part of an enthusiastic, highly motivated team of 850+ Catawikians.
• International and fast-growing organization with over 50 nationalities.
• 22 days of Holiday days + National Holidays
• Health Insurance
• Meal Card per working day on top of salary
• Working-from-home Allowance
• Hybrid way of working between home and office
• Flexible working hours policy
• Holistic Wellbeing Programme including: clinical services, single-session therapy, wellness support and more.
• Tailored Learning & Development program

Scopely is looking for a Staff Client Engineer to join our unannounced project in either Spain, Ireland, Portugal or the UK in a hybrid/remote basis.

At Scopely, we care deeply about what we do and want to inspire play every day - whether in our work environments alongside our talented colleagues or through our deep connections with our communities of players. We are a global team of game lovers who are developing, publishing and innovating the mobile games industry, connecting millions of people around the world daily. 

We are in the early stages of development on an ambitious, unannounced Strategy/MMO title, creating a team of talented and passionate game makers to join us on this exciting journey! 

What You Will Do 

• Design and implement new features in our core technologies, working collaboratively with other stakeholder teams to understand requirements and identify the best technical solutions
• Propose and implement improvements to our development processes, workflows and tools to increase efficiency, quality and throughput
• Conduct pair programming, code reviews, 1-1’s and knowledge-sharing sessions to enhance skills and build a strong development culture
• Work closely with QA to resolve bugs and deliver high-quality code for testing, contributing directly to the code base
• Be the quality gate for all code that goes into our core technologies. Write clean, efficient and optimized code
• Work with stakeholders to figure out and implement the best alternative technical solutions

What We’re Looking For

• Experienced professional being part of a development team working on gameplay development with the Unity engine
• Familiarity with software development methodologies such as Agile and Scrum
• Excellent experience working with multiple stakeholders in the development process, being able to understand their goals and deliver/ evaluate various tech solutions to meet these, as well as knowledge of software engineering best practices and trends
• Strong technical skills and experience in at least one of the following areas: game engines, rendering engines, networking, physics, AI, and audio and excellent programming skills in C#
• Experience with version control, build tools and deployment pipelines
• Strong analytical, problem-solving skills, communication and collaboration skills to work effectively with cross-functional teams
• Adept at communicating with both technical and non-technical audiences.

Bonus Points

• Experience with automated testing and continuous integration
• Experience with cloud technologies and services for game development
• Familiarity with other game engines such as Unreal
• Experience with graphics programming, including shaders
• Knowledge of game design principles and user experience

At Talkdesk, we are courageous innovators focused on redefining customer experience, making the impossible possible for companies globally. We champion an inclusive and diverse culture representative of the communities in which we live and serve. We give back to our community by volunteering our time, supporting non-profits, and minimizing our global footprint. Each day, thousands of employees, customers, and partners around the world trust Talkdesk to deliver a better way to great experiences.

Our Engineering teams follow a micro-service architecture approach to build the next generation of Talkdesk, with autonomous vertical teams owning their services end to end. We promote agile and collaborative practices, value peer reviews, and believe that true authority comes from knowledge, not position. Respect, curiosity, and continuous learning are core to how we work.

Are you passionate about breaking things to make them safer?

As a Security Engineer focused on Pentesting, Incident Response, and Security Investigations, you will play a key role in detecting, investigating, and preventing security incidents while proactively identifying weaknesses across our platforms and applications.

What you’ll do

Depending on your profile and experience, your responsibilities may include:

• Perform manual and automated penetration testing of web applications, APIs, cloud-based systems, and AI/ML models.
• Conduct security assessments of AI-driven features, focusing on risks like prompt injection, data leakage, and adversarial attacks.
• Conduct security investigations to identify root causes, attack paths, and impact of security incidents.
• Lead or actively participate in incident response, including detection, containment, eradication, and post-incident reviews.
• Analyze logs, telemetry, and forensic artifacts to support investigations and threat hunting activities.

• Triage, validate, and prioritize findings from internal and external penetration tests.
• Work closely with engineering teams to explain vulnerabilities, recommend pragmatic remediations, and verify fixes.
• Support the development and improvement of incident response playbooks and processes.
• Perform threat modeling (e.g., STRIDE) to identify realistic attack scenarios.
• Continuously research emerging threats, attack techniques, and exploitation methods relevant to our environment, including the evolving AI threat landscape.
• Act as a security subject-matter expert (SME) during incidents and high-risk technical discussions.
• Help improve Talkdesk’s overall security posture through lessons learned and proactive testing.

Must have

• Strong knowledge of application and systems security
• Solid understanding of web technologies, networking, and common attack vectorsPractical experience with penetration testing tools and techniques
• Experience with the OWASP Top 10 for LLMs and common AI exploitation patterns
• Experience conducting security investigations and incident responseUnderstanding of OWASP Top 10 and common exploitation patterns

• Knowledge of cryptographic concepts and their practical use (and misuse)
• Linux/Unix proficiency
• Experience analyzing logs and security events
• Scripting or coding experience in at least one general-purpose language (e.g., Python, Ruby, Java)
• Excellent written and verbal communication skills, with the ability to explain complex security issues clearly
• Fluent in English (written and spoken)
• Strong analytical and critical-thinking skills
• Comfortable working in fast-paced, sometimes high-pressure situations

Nice to have

• Experience testing cloud-native environments, especially AWS
• Familiarity with microservices architectures and API security
• Experience with web and mobile application security testing
• Exposure to DAST, SAST, or IAST tools (hands-on or triage-focused)
• Experience performing application architecture security reviews
• Familiarity with security standards and frameworks (e.g., ISO 27001, NIST, CIS, OWASP, SANS)
• Relevant certifications such as OSCP, OSWE, GSEC, GCIA, CISSP, or CISM
• Familiarity with technologies like Git, Ruby, Kotlin, RabbitMQ, Redis, MongoDB, or PostgreSQL

❗️ Important: This is an On-Site Position in Lisbon❗️

This is an on-site position based at our office in the Lisbon Metropolitan area. Remote or hybrid arrangements are not available once you join the team.

Are you ready for an international move? We are looking for candidates who are either already based in Lisbon or are eager to relocate to Portugal. To make your transition smooth, we provide full relocation support and visa sponsorship for successful international candidates.

📍 See where you'll be working: BrainRocket Portugal

⚡ We are looking for a highly skilled  Manual QA Engineer to join our Platform team. In this role, you will be responsible for ensuring the quality, stability, and scalability of our core platform components, actively contributing to our testing processes for complex architectural features and integrations.

✅ Requirements:
• 4+ years of experience in software testing.
• Mandatory experience in backend testing and a deep understanding of client-server architecture.
• Strong experience in API testing (REST, JSON) using tools like Postman, Swagger, or similar.
• Solid SQL knowledge (ability to write complex queries, joins, and work with databases directly).
• Experience in defining the scope of testing, maintaining test documentation (Test Plans, Test Cases, Checklists).
• Experience in contributing to and evolving existing test strategies, as well as implementing process improvements.
• Advanced analytical troubleshooting skills, attention to detail, and a scientific approach to problem-solving (e.g., reading logs, analyzing network traffic).
• Proficiency with JIRA and Confluence.
• Strong verbal and written communication skills to effectively collaborate with developers, architects, and product managers.
• Upper-Intermediate level of English (both verbal and written).

✅ Will be a plus:
• Experience in test automation (TypeScript) and a willingness to contribute to automated testing processes.
• Experience in Mobile testing (iOS/Android).
• Familiarity with CI/CD pipelines and tools.
• Experience with Allure TestOps as TMS.

✅ Duties and opportunities:
• Perform end-to-end manual testing of the core platform features, APIs, and integrations.
• Collaborate with the team to evolve and implement changes to the overall platform test strategy.
• Investigate and localize issues, working closely with devtools,  logs and databases.
• Manage defects in the bug-tracking system and oversee them through the entire lifecycle.
• Support release process.
• Actively collaborate with cross-functional teams (Development, DevOps, Product) to identify risks and improve product quality at early stages.
• Mentor junior/middle QA engineers and contribute to QA process improvements within the platform team.

✅ We offer excellent benefits, including but not limited to:
💻 Learning and development opportunities and interesting, challenging tasks.
✈️ Relocation package (tickets, staying in a hotel for up to 2 weeks, and visa relocation support for our employees and their family members).
📚 Opportunity to develop language skills, with partial compensation for the cost of English and Portuguese language classes (for localization purposes).
🎾  Partial compensation for tennis and padel lessons.
🏀 Urban Sport membership benefit (the most diverse sports and wellness offering in Europe, with more than 50+ activities).
🏥 Private medical coverage, including inpatient, outpatient, dental care, annual check-ups, and maternity support.
🏝 Time for proper rest, with 24 non-business days per year and an additional 6 paid sick days.
🚌 Transport compensation - 200 euros net per month.
📈 Competitive remuneration level with annual review.
🤝 Teambuilding activities.

The Tripadvisor Group connects people to experiences worth sharing, and aims to be the world’s most trusted source for travel and experiences. We leverage our brands, technology, and capabilities to connect our global audience with partners through rich content, travel guidance, and two-sided marketplaces for experiences, accommodations, restaurants, and other travel categories. The subsidiaries of Tripadvisor, Inc. (Nasdaq: TRIP), include a portfolio of travel brands and businesses, including Tripadvisor, Viator, and TheFork.

The Tripadvisor Experiences Engineering team is distributed across Europe and is responsible for Tripadvisor.com, the Tripadvisor mobile apps and all their supporting infrastructure. We run the systems that help operators build their businesses and those which enable third parties to utilise our inventory. We provide the tools which help our customer services team provide world class service to travellers and operators internationally.

We’re looking for a Software Engineer II to join our fast-growing team. This role is open to candidates based within a commutable distance (generally up to 2 hours) of one of our office hubs in Lisbon, Saldanha. We embrace flexibility in where and how work gets done and also value meaningful in-person moments to connect and collaborate. You can expect a remote-first working model with periodic in-person gatherings at your closest office for team connection, planning, or other key moments.

At Tripadvisor our Engineers are versatile and enjoy working on a variety of technical challenges. This is a backend focused full-stack position in which you will be working mostly on the backend with some front end projects from time to time. While you need to be hungry to learn, you don't need to be an expert at front end development right away - we can teach that part on the job and you won't be tested on it in interviews.

Within Tripadvisor we have a fun and friendly environment where the key objective is getting things done. Working closely alongside product managers and designers, our engineers are part of the full process from software design, to code, to test, to deployment and back again. Most of our engineers release code to production every few days and we have a daily release cycle.

Tripadvisor's web stack includes Java, React, TypeScript, GraphQL,Kubernetes, SQL and NoSQL databases, and runs on AWS. You don’t need to have experience with everything listed but you do need to be hungry to learn. You will need to have experience of a statically typed, object-oriented language such as Java, C# or C++

Perks of Working at Tripadvisor

• Competitive compensation packages, including base salary, annual bonus, and more.
• “Work your way” with flexibility to suit your lifestyle. We take a remote-friendly approach to collaboration, with the option to join on-site as often as you’d like in select locations. 
• Flexible schedule. Work-life balance is ingrained in our culture by design. Trust and accountability make it work.
• Donation matching. Give back? Give more! We match qualifying charitable donations annually.
• Tuition assistance. Want to level up your career? We love to hear it! Receive annual support for qualified programs.
• Lifestyle benefit. An annual benefit to spend on yourself. Use it on travel, wellness, or whatever suits you.
• Travel perks. We believe that travel is employee development, so we provide discounts and more.
• Employee assistance program. We’re here for you with resources and programs to help you through life’s challenges.
• Health benefits. We offer great coverage and competitive premiums.

Our Values

We aspire to lead; We’re relentlessly curious;... want to know more? Read up on our values: 

• We aspire to lead. Tap into your talent, ambition, and knowledge to bring us – and you – to new heights.
• We’re relentlessly curious. We push beyond the usual, the known, the “that’s just how it’s done.”
• We’re better together. We learn from, accept, respect, support, and value one another– and are creating something remarkable in the process.
• We serve our customers, always. We listen, question, respond, and strive for wow moments.  

We strive for better, not perfect. We won’t get it right the first time – or every time. We’ll provide a safe environment in which to make mistakes, iterate, improve, and grow.

Our workplace is for everyone, as is our people powered platform. At Tripadvisor, we want you to bring your unique identities, abilities, and experiences, so we can collectively revolutionize travel and together find the good out there.

Application process

• 30 minute call with a recruiter to learn more about the role
• 1 hour technical coding interview with someone from the Tripadvisor Engineering team
• Three one-hour interviews with members of the team, covering technical topics - including some coding - and what you would bring to Tripadvisor.

We strive to create an accessible and inclusive experience for all candidates. If you need a reasonable accommodation during the application or the recruiting process, please make sure to reach out to your individual recruiter or our team at greenhouse@tripadvisor.com.

#LI-Tripadvisor

Join Iterable in Portugal, where innovation meets opportunity! At Iterable, you’ll thrive in a values-based community with competitive salaries, exceptional benefits, and continuous learning opportunities. Our expansion into Portugal is a game-changer, offering you the chance to shape our brand and bridge the gap between technical and marketing teams.

How you will make a difference

As an Android Software Engineer II on the SDK team at Iterable, you’ll contribute to our Android and Flutter SDK and related mobile integration features that enable customers to send billions of personalized messages to people around the world each year. This includes adding new features to our existing integration channels such as SMS and Push Notifications, and helping build out support for new mobile and device channels we may add in the future (for example Roku, Messenger, WhatsApp, Android Auto, and others).

You’ll work closely with our Product team to refine product features and determine the feasibility of upcoming projects, and you’ll collaborate with teams such as Delivery and User Data Infrastructure to ensure the products and services the mobile team builds remain fast, reliable, and scalable.

One of our core values is a growth mindset, and Iterable is a company where everyone can grow. If this role excites you, we encourage you to apply—we value applicants for the skills and potential they bring beyond a job description.

You’ll get to

• Own Android SDKs and associated functionality, ensuring they are robust, intuitive, and integrate cleanly with our Flutter SDK and other cross-platform environments.
• Influence technical strategy to build SDKs and integrations mobile developers will love, with clear APIs, reliable behavior, and thoughtful support for Flutter use cases.
• Drive team discussions on system architecture and component design, with an eye toward cross-platform usage patterns (native + Flutter).
• Design intuitive and performant APIs that feel natural to Android and Flutter developers alike.
• Participate in code reviews and help uphold high standards for code quality, testing, and documentation.
• Ship code frequently in an iterative environment, balancing quality and speed.
• Collaborate with a small, nimble team of engineers that values ownership, autonomy, and learning.
• Partner with Product and other Iterable teams to deliver on the team’s technical vision for mobile and cross‑platform channels.
• Participate in an on-call rotation to help support our customers (currently about once per quarter).

We are looking for people who have

• B.S. or M.S. in Computer Science, or equivalent practical experience.
• 3+ years of experience in mobile development, with a strong track record of building and shipping Android applications or SDKs (SWE II level).
• Strong knowledge of Android and its core frameworks, along with solid understanding of mobile platforms and constraints.
• Expert-level proficiency in Kotlin or Java, and modern Android tooling and libraries.
• Solid computer science fundamentals (threading, memory management, performance, and testing best practices).
• Experience building and maintaining public-facing APIs and/or SDKs, ideally for external developers.
• Hands-on experience with Flutter in a production or near‑production context (for example, shipping features in a Flutter app, building a Flutter plugin, or integrating a native Android SDK into a Flutter codebase). This experience is strongly preferred and will be used day‑to‑day in the role.
• Passion for learning and continuously improving yourself, your team, and the developer experience you create.

Bonus points

• Examples of shipped applications or SDKs on the Google Play Store.
• Experience with mobile build systems and automation (e.g., Gradle, CI pipelines).
• Experience with testing frameworks for mobile and/or Flutter (unit, integration, snapshot, end‑to‑end).
• Involvement in the local or global Android and/or Flutter developer community (meetups, open source, speaking, writing, etc.).
• Experience deploying and operating services on AWS or another major cloud provider.
• Proficiency with other cross-platform development frameworks such as React Native; Flutter remains our strong preference for this role, but adjacent experience is valuable.

While Flutter experience is highlighted as a strong preference and key part of this role, we’re always excited to speak with Android engineers who can demonstrate the ability to ramp quickly on new frameworks and tooling.

Perks & Benefits (Portugal)

• Competitive salaries & meaningful equity
• Private Medical Insurance
• Life/Risk Assurance
• Meal Allowance: 8.55€ per day
• Community Days (days for us to give back to the community) 
• Paid Annual Leave (22 days)
• Global Lifestyle Reimbursement Account
• Paid Sabbatical
• Complete laptop workstation

The Engineering (Tech) Team is responsible for all Feedzai product development. Together with Product Management and Data Science, we build the next generation of tools to catch fraud in real-time with a machine learning first approach. Formed by engineers and managed by engineers, at Feedzai, you will find one of the most talented teams out there, from junior to senior engineers.

We are fast-paced and provide a safe, open, and collaborative environment that encourages us to lean in, try new things and discover our potential with continuous learning for everyone.  

While building the best value for our customers, you will work with a wide range of technical challenges. Such as building distributed systems that need to operate 24/7 and ultra-low latencies, solving UI/UX problems to help fraud analysts to fight fraud more efficiently. In addition, designing extensive databases from relational, NoSQL and graphs, validate and develop new data science techniques and algorithms.

You:

You are a passionate professional with the talent to push engineering excellence, challenge the status quo, and lead by example. You excel by being a catalyst for clarity, engaging key stakeholders, and driving scalable technical solutions that align with our business goals. 

You have a critical mindset and the ability to mentor others, ensuring the team delivers high-quality, production-ready mobile software with minimal oversight. On a daily basis, you’ll have the chance to work on subjects such as High-Performance Mobile SDKs, Security, and Scalability.

Your Day to Day:

• Own the end-to-end delivery of robust SDKs, from architectural design to production-ready deployment, ensuring they scale predictably in high-stakes environments;
• Solve high-complexity technical challenges with significant autonomy, making the critical trade-offs between development speed and long-term software quality;
• Champion engineering excellence by mentoring peers and raising the bar for design reviews, code quality, and mobile best practices;
• Liaise with cross-functional stakeholders to translate customer needs into technical mobile solutions that maximize business impact and user experience;

You Have & You Know-how:

• BSc/MSc degree in Computer Science or a similar technical degree;
• 5+ years of experience in developing and delivering advanced mobile applications;
• Mastery of the Android ecosystem, from high-level app architecture in Kotlin and/or Java to low-level OS internals and security frameworks.
• Experience with Mobile CI/CD and Automation (e.g., Gitlab, Jenkins, or Bitrise) to ensure predictable, high-quality releases.
• Extreme Ownership mindset, proactively seeking context and driving tasks to completion with growing autonomy.
• We also value experience in the following topics:
• Designing and creating frameworks or SDKs for mobile applications;
• Native app writing ability for iOS environments (Swift/Objective-C);
• Knowledge in Cross-platform tools (Cordova, Xamarin, and Flutter) and Typescript;
• Good technical English communication skills. 

The Product Team builds our product to disrupt the financial crime industry from a data-led approach. We partner with our clients using a holistic lens and have result-driven solutions to manage financial risk with a cloud-first platform and a world-class UX interface. Being part of this team, you have a voice in planning, strategizing, and challenging the status quo. Your thoughts and ideas are valued. Our fast-paced and open environment encourages us to lean in, try new things, and  discover our potential. We define and act on what could be in tomorrow's world, not on what is today. Join Us!

#LI-Remote #LI-LS1

About this job

Teamwork plays an integral role in the success of our tech strategy.  In JUMO, our teams have exposure to a broad range of the best new technology, and are trusted with the autonomy and flexibility to explore, innovate and find creative solutions to interesting challenges.  With this, everyone has the opportunity to contribute to our mission of enabling equal access to finance opportunities.  We have chosen our tech stack carefully and believe in using the best tools out there.

Our software engineering team is responsible for building our market-leading banking as a service platform & products, enabling real-time access to funds at the lowest possible operating cost.  When integrated into JUMO’s platform, it enables our partners to offer loans, savings and a wide range of financial choices to a new group of customers.

As a Software Engineer, you will be accountable for solving complex technical problems with solutions that are scalable, testable, maintainable, and efficient, whilst continuing to improve our engineering practices. This position reports to a Tech Lead.

You will

• Deliver across the SDLC to build a highly scalable distributed system.
• Assist in defining the team's roadmap in line with the company and technology vision.
• Architect services and systems using well accepted design patterns to allow for iterative, autonomous development and future scaling.
• Design, implement, test, deploy, and support our products and services
• Review code developed by other developers and provide feedback.  Guide the team to consistently write production-ready code that is easily testable, easily understood by other developers and accounts for edge cases and errors.
• Anticipate and communicate blockers, delays and cost ballooning within their team’s projects, before they require escalation.
• Contribute to existing documentation or educational content and drive best practices and engineering excellence

You will need

• A Computer Science degree
• Experience with Kotlin / Java / Scala, and a cloud-based infrastructure, ideally AWS. Python experience will be an added advantage
• Experience designing, developing and testing software
• Extensive hands-on experience with the design and development of high-volume/low-latency services
• Business and operational awareness
• Good communication skills & EQ – able to work in a diverse team

We ask a lot of each other at JUMO, but we give a lot too.

You will love

• Work in an agile cross-functional team, delivering quality code you can be proud of
• Work with a modern but pragmatic Tech Stack (i.e. Kotlin + Spring Boot for Backend, TypeScript + React for Web and Mobile, Docker, Terraform, Kubernetes, Kafka, Flink, Datadog, GitHub Actions + ArgoCD for CI/CD, AWS), building a highly scalable distributed system
• Develop as a mentor, helping your junior colleagues grow as professionals
• Ensure consistency and accuracy when required
• Led and supported by an experienced, hands-on Tech Lead
• Collaborating with smart, engaging people
• Working for impact
• Growing and learning continuously, with loads of encouragement and support
• Boldly taking risks as we navigate new challenges
• Flexible work practices enabling your best delivery
• Being autonomous and empowered to lead

Remote First

Our environment is designed to foster innovation and enable collaboration. We operate a remote-first approach that enables us with the flexibility to work and live where we are most productive.

We work between the UTC and UTC+3 time zones and currently have team members from South Africa, Portugal and Kenya.

Diversity and Inclusion

At JUMO, we firmly believe that diversity fortifies our teams. We are dedicated to fostering an inclusive recruitment process that cultivates an environment where individuals from all walks of life can collaborate, thrive, and express their authentic selves.

About Tripadvisor

The Tripadvisor Group connects people to experiences worth sharing, and aims to be the world’s most trusted source for travel and experiences. We leverage our brands, technology, and capabilities to connect our global audience with partners through rich content, travel guidance, and two-sided marketplaces for experiences, accommodations, restaurants, and other travel categories. The subsidiaries of Tripadvisor, Inc. (Nasdaq: TRIP), include a portfolio of travel brands and businesses, including Tripadvisor, Viator, and TheFork.

The Tripadvisor Experiences Engineering team is distributed across Europe and is responsible for Tripadvisor.com, the Tripadvisor mobile apps and all their supporting infrastructure. We run the systems that help operators build their businesses and those which enable third parties to utilise our inventory. We provide the tools which help our customer services team provide world class service to travellers and operators internationally.

About the Role

We’re looking for a Senior Software Engineer to join our fast-growing team. This role is open to candidates based within a commutable distance (generally up to 2 hours) of one of our office hubs in Lisbon. We embrace flexibility in where and how work gets done and also value meaningful in-person moments to connect and collaborate. You can expect a remote-first working model with periodic in-person gatherings at your closest office for team connection, planning, or other key moments.

At Tripadvisor our Engineers are versatile and enjoy working on a variety of technical challenges. This is a full-stack position in which you will be working mostly on the backend with some front end projects from time to time.

Within Tripadvisor we have a fun and friendly environment where the key objective is getting things done. Working closely alongside product managers and designers, our engineers are part of the full process from software design, to code, to test, to deployment and back again. Most of our engineers release code to production every few days and we have a daily release cycle.

Tripadvisor's web stack includes Java, React, Typescript, GraphQL, Kubernetes, SQL and NoSQL databases, and runs on AWS. You don’t need to have experience with everything listed and will be able to complete coding languages in any language of your choice. You do need to be hungry to learn and will learn our tech stack on the job, if you don't know it already.

Perks of Working at Tripadvisor

• Competitive compensation packages, including base salary, annual bonus, and more.
• “Work your way” with flexibility to suit your lifestyle. We take a remote-friendly approach to collaboration, with the option to join on-site as often as you’d like in select locations. 
• Flexible schedule. Work-life balance is ingrained in our culture by design. Trust and accountability make it work.
• Donation matching. Give back? Give more! We match qualifying charitable donations annually.
• Tuition assistance. Want to level up your career? We love to hear it! Receive annual support for qualified programs.
• Lifestyle benefit. An annual benefit to spend on yourself. Use it on travel, wellness, or whatever suits you.
• Travel perks. We believe that travel is employee development, so we provide discounts and more.
• Employee assistance program. We’re here for you with resources and programs to help you through life’s challenges.
• Health benefits. We offer great coverage and competitive premiums.

Our Values

We aspire to lead; We’re relentlessly curious;... want to know more? Read up on our values: 

• We aspire to lead. Tap into your talent, ambition, and knowledge to bring us – and you – to new heights.
• We’re relentlessly curious. We push beyond the usual, the known, the “that’s just how it’s done.”
• We’re better together. We learn from, accept, respect, support, and value one another– and are creating something remarkable in the process.
• We serve our customers, always. We listen, question, respond, and strive for wow moments.  

We strive for better, not perfect. We won’t get it right the first time – or every time. We’ll provide a safe environment in which to make mistakes, iterate, improve, and grow.

Our workplace is for everyone, as is our people powered platform. At Tripadvisor, we want you to bring your unique identities, abilities, and experiences, so we can collectively revolutionize travel and together find the good out there.

Application process

• 30 minute call with a recruiter to learn more about the role
• 1 hour technical coding interview with someone from the Tripadvisor Engineering team
• Three one-hour interviews with members of the team, covering technical topics - including some coding - and what you would bring to Tripadvisor .

We strive to create an accessible and inclusive experience for all candidates. If you need a reasonable accommodation during the application or the recruiting process, please make sure to reach out to your individual recruiter or our team at greenhouse@tripadvisor.com.

#LI-Tripadvisor

Who we are

At Fluxon, we believe that how you build matters as much as what you build. We help businesses navigate their most important technology decisions with confidence, and take responsibility for seeing them through. Founded by ex-Googlers and startup veterans, we’re proud to partner with teams behind some of the most ambitious products, including Google, OpenAI, Anthropic, Walmart and Stripe. 

Our work spans strategy, design, and engineering — often in complex, AI-driven environments — where clarity, speed and quality are the standard. We use AI intentionally, applying it only where it adds real value and expands what’s possible. Care shapes everything we do.

Inside Fluxon, you’ll find a global, remote-first team of experienced builders, who are curious, kind and serious about their craft. We’re building a place where people can take ownership, solve problems that matter and do work they’re proud to stand behind. If you want to do your best work alongside people who care as much as you do, you’ll feel at home here.

Note: This position is fully remote with a strong preference for a candidate based in Portugal (Lisbon). 

About the role

As a Staff Software Engineer at Fluxon, you'll drive the end-to-end delivery of products to market while learning, contributing, and growing in partnership with our leadership team

You'll be responsible for:

• Guiding project delivery all the way to the user, leading projects, building and iterating in a dynamic environment
• Partnering directly with clients to understand their needs, and achieve business goals
• Defining product requirements, identifying appropriate system designs and planning development in partnership with our Product and Design teams
• Supporting development of a healthy and effective engineering culture

You'll work with a diversity of technologies, including:

• Languages
  • TypeScript/JavaScript, Java, .Net, Python, Golang, Rust, Ruby on Rails, Kotlin, Swift
• Frameworks
  • Next.js, React, Angular, Spring, Expo, FastAPI, Django, SwiftUI
• Cloud Service Providers
  • Google Cloud Platform, Amazon Web Services, Microsoft Azure
• Cloud Services
  
  • Compute Engine, AWS Amplify, Fargate, Cloud Run
  • Apache Kafka, SQS, GCP CMS
  • S3, GCS
• Technologies
  
  • AI/ML, LLMs, Crypto, SPA, Mobile apps, Architecture redesign 
  • Google Gemini, OpenAI ChatGPT, Vertex AI, Anthropic Claude, Huggingface
• Databases
  • Firestore(Firebase), PostgreSQL, MariaDB, BigQuery, Supabase
  • Redis, Memcache

Qualifications

• 7+ years of industry experience in software development
• Experience leading development through the full product lifecycle, including CI/CD, testing, release management, deployment, monitoring and incident response
• Fluent in the design and implementation of scalable system architectures, data structures and algorithms, and effective development practices

What we offer

• Remote-first, flexible work with a budget to set up a work space that works for you
• Localized healthcare coverage to support you and your family’s wellbeing
• Flexible paid time off with a minimum of 3 weeks per year (plus holidays)
• "No internal meetings" Fridays, so you can focus on deep, uninterrupted work
• A professional growth budget for learning that matters to you –  whether it’s developing your technical skills or learning a new language
• A monthly wellness allowance to support your physical and mental health
• Annual company offsites, where we gather in person to build meaningful connections
• A competitive salary that reflects your expertise, impact and experience
• Profit-sharing, so you can benefit directly from the value we build together
• A paid sabbatical program, designed for rest, renewal and fresh perspective

Who we are

At Fluxon, we believe that how you build matters as much as what you build. We help businesses navigate their most important technology decisions with confidence, and take responsibility for seeing them through. Founded by ex-Googlers and startup veterans, we’re proud to partner with teams behind some of the most ambitious products, including Google, OpenAI, Anthropic, Walmart and Stripe. 

Our work spans strategy, design, and engineering — often in complex, AI-driven environments — where clarity, speed and quality are the standard. We use AI intentionally, applying it only where it adds real value and expands what’s possible. Care shapes everything we do.

Inside Fluxon, you’ll find a global, remote-first team of experienced builders, who are curious, kind and serious about their craft. We’re building a place where people can take ownership, solve problems that matter and do work they’re proud to stand behind. If you want to do your best work alongside people who care as much as you do, you’ll feel at home here.

Note: This position is fully remote with a strong preference for a candidate based in Portugal (Lisbon). 

About the role

As a Senior Software Engineer at Fluxon, you'll have the opportunity to bring products to market while learning, contributing, and growing with our team.

You'll be responsible for:

• Driving end-to-end implementations all the way to the user, collaborating with your team to build and iterate in a dynamic environment
• Engaging directly with clients to understand business goals, give demos, and debug production issues
• Informing product requirements, identifying appropriate technical designs in partnership with our Product and Design teams
• Proactively communicating progress and challenges in your work and seeking help when you need it
• Performing code reviews and cross-feature validations
• Providing mentorship in your areas of expertise

You'll work with a diversity of technologies, including:

• Languages
  • TypeScript/JavaScript, Java, .Net, Python, Golang, Rust, Ruby on Rails, Kotlin, Swift
• Frameworks
  • Next.js, React, Angular, Spring, Expo, FastAPI, Django, SwiftUI
• Cloud Service Providers
  • Google Cloud Platform, Amazon Web Services, Microsoft Azure
• Cloud Services
  
  • Compute Engine, AWS Amplify, Fargate, Cloud Run
  • Apache Kafka, SQS, GCP CMS
  • S3, GCS
• Technologies
  
  • AI/ML, LLMs, Crypto, SPA, Mobile apps, Architecture redesign 
  • Google Gemini, OpenAI ChatGPT, Vertex AI, Anthropic Claude, Huggingface
• Databases
  • Firestore(Firebase), PostgreSQL, MariaDB, BigQuery, Supabase
  • Redis, Memcache

Qualifications

• 5+ years of industry experience in software development
• Experienced with the full product lifecycle, including CI/CD, testing, release management, deployment, monitoring and incident response
• Fluent in software design patterns, scalable system architectures, tooling, fundamentals of data structures and algorithms

What we offer

• Remote-first, flexible work with a budget to set up a work space that works for you
• Localized healthcare coverage to support you and your family’s wellbeing
• Flexible paid time off with a minimum of 3 weeks per year (plus holidays)
• "No internal meetings" Fridays, so you can focus on deep, uninterrupted work
• A professional growth budget for learning that matters to you –  whether it’s developing your technical skills or learning a new language
• A monthly wellness allowance to support your physical and mental health
• Annual company offsites, where we gather in person to build meaningful connections
• A competitive salary that reflects your expertise, impact and experience
• Profit-sharing, so you can benefit directly from the value we build together
• A paid sabbatical program, designed for rest, renewal and fresh perspective