We’re looking for experienced Software Engineers to join various teams within the Merchant Group at Wolt! If you have a strong track record of building and maintaining scalable, production-grade systems and want to drive impact at scale, this is the place for you.

Who We Are

The Merchant Group consists of 150+ engineers across 25+ cross-functional teams, working together to help merchants grow their businesses and streamline operations through innovative technology. Some of us focus on building seamless experiences for our merchants, while others work on the behind-the-scenes magic that makes everything run smoothly.

What You’ll Do

As an engineer in our group, you’ll work on production-level microservices in Kotlin and Go, helping shape how merchants succeed with Wolt. You’ll have opportunities to:

• Design, build, and scale reliable systems that power merchant experiences.
• Work across the full development lifecycle – from business logic and testing to cloud infrastructure and data streaming.
• Collaborate on architecture and technology choices that keep our systems simple, scalable, and efficient.
• Grow your skills and knowledge by working alongside experienced teammates in an environment that values learning and experimentation.

How We Work

• Autonomy & Ownership – Our engineers have end-to-end responsibility for their services, from implementation to production.
• Collaboration – Architecture and working methods are defined together, ensuring we make the best choices for long-term success.
• Scalability & Simplicity – We value pragmatic solutions that keep our systems robust without unnecessary complexity. We use technologies that serve Wolt, our teams, and our engineers best. You’ll have the freedom to experiment and adopt the tools that work.

Find out more by checking out our Kotlin-related Tech Talks below:

• Scaling Kotlin Backend Development Podcast 

• Kotlin at Wolt

• Kotlin Meetup

Our Tech Stack

Our core technologies include Kotlin (Ktor, Koin, Spring, gRPC), PostgreSQL, MongoDB, Kafka, Redis, GitHub Actions, AWS, Docker, and Kubernetes.

Why Join Us?

Wolt is a place where you can learn, teach, and grow. If you’re passionate about building great technology and working in an environment that values teamwork and autonomy, we’d love to hear from you!

📍These open roles are based in our tech hubs in Berlin, Helsinki or Stockholm. We work in distributed teams, but might not be able to offer fully remote work or relocation. 

Our humble expectations

We’re seeking experienced Software Engineers with a strong background in building scalable microservices. While Kotlin is our primary language, experience with Java, Scala, or other JVM backend languages is great. As we are exploring Go, we're looking for people who are confident in their ability to learn and teach! 🛠️

Beyond technical expertise, we value ownership, collaboration, and a mindset for growth. We think you're a great communicator who thrives in tackling complex challenges, questioning conventions, and working closely with teammates to build reliable, scalable systems. 🚀

Next steps

We are hiring for multiple open positions across different teams in the Merchant Group. During the initial screening call our Talent Acquisition Partner will discuss with you your expectations and possible domain preferences as well as share more about the group. After the recruiter screening call, during the rest of the interviewing steps, you’ll meet hiring managers and software engineers from the Merchant group, a specific team being proposed at the end of the process - that’s the moment when you’ll get to meet your possible Team Lead. Throughout the process, we will do our best to match your experience, skills, and aspirations with the most suitable Engineering team!

Senior Technical Account Manager - EMEA

We’re a global team of over 400 people, working together to push the boundaries of open-source technology and multi-cloud solutions. Our vision is to help developers, builders, and creators bring their ideas to life with speed and simplicity, by providing a cloud data platform that makes open-source databases, search, streaming, and application infrastructure easily accessible to everyone.

The Role: We are looking for a customer-centric Senior Technical Account Manager (TAM) with a direct focus on our largest enterprise customers. The TAM is a technical professional who helps optimize Aiven’s customer experience and accelerate time-to-value when using Aiven’s Open Source services. You will act as a single point of contact and customer advocate, providing direct access into Aiven business functions such as Support, Engineering, Product Management, Marketing, and Executive Staff.

What You'll Do:

• Build Relationships: Help customers succeed by building successful relationships throughout the entire customer journey.
• Technical Strategy: Develop a deep technical understanding of the customer’s business priorities, operational models, cloud architecture, and technical initiatives.
• Operational Advisory: Maintain awareness of customer operations to assist with operational planning and risk management, acting as an advisor for deployments.
• Cross-Functional Advocacy: Act as a conduit into Aiven’s Sales, Support, Engineering, and Product Management teams to represent customer interests.
• Operational Reviews: Conduct regular reviews on incidents, field advisories, security vulnerabilities, and root-cause analysis.
• Sales Collaboration: Participate in sales account planning and support account penetration and pipeline growth strategies.
• Travel: Travel up to 10% of the time to meet with customers.

What We're Looking For:

• Technical Expertise: A deep conceptual and hands-on understanding of Apache Kafka and at least one of the following: PostgreSQL, ClickHouse, or OpenSearch.
• Consulting Background: Proven experience in technology sales, pre-sales, or technical consulting.
• Development Skills: Fluency in one or more programming languages such as Java, Python, Go, or Ruby.
• Cloud & Infrastructure: Knowledge of public clouds (AWS, Google, or Azure) and experience with Linux operating systems, networking basics (DNS, VPC), and relational databases.
• Communication: Excellent presentation and problem-solving skills, with the ability to articulate technical requirements to both customers and internal Product teams.
• Project Management: Ability to manage multiple projects, determine urgency, and execute detailed action plans.
• Nice to Have: Previous experience in Customer Relationship Management (CRM) and migration experience (e.g., Oracle to PostgreSQL).

Amazing! What’s next: If you think Aiven is the place for you and that our Values align with yours, send us your resume and we’ll get in touch! You can generally expect 4 stages with us:

1. 30-45 minute call with a Talent Partner.
2. 45-minute Depth of Expertise Interview with the hiring manager.
3. 1-hour Skills interview/presentation with the wider team.
4. 1-hour Company Values interview.

Global Benefits: Our global benefits are designed to help you thrive and grow, personally and professionally:

• Equity: Participate in Aiven’s equity plan.
• Flexibility: Balance work and life with our hybrid work policy.
• Gear: Choose the equipment you need to set yourself up for success.
• Learning: Use your Professional Development Plan budget for learning opportunities.
• Wellbeing: Receive holistic wellbeing support through our global Employee Assistance Program.
• Time Off: Inquire about our Global Time Off Commitment (Parental and Sick Leave, as well as Personal Time).
• Open Source: Get paid to contribute to open-source projects via our Plankton program.
• Volunteering: Use up to 5 days per year to volunteer for a cause of your choice.

How to Recognize and Avoid Employment Scams: There has been a rise in fake job postings used by scammers to get personal information. At Aiven, all of our emails relating to recruitment come from an @aiven.io, @greenhouse.io or @eu.greenhouse.io domain and all of our interviews are conducted by video call or in person. Our interviews will never occur via text or chat. If you’re unsure of the legitimacy of a job opportunity/offer pertaining to Aiven, please don’t hesitate to reach out to us at recruitment@aiven.io.

Equal Opportunities: Aiven provides equal employment opportunities to all qualified employees and applicants for employment without regard to age, gender identity, national or ethnic origin, religion, sexual orientation, physical and mental ability, marital and family status or without regard to any other similar personal attributes. Aiven complies with applicable local laws governing non-discrimination in employment in every location in which the company operates.

At Aiven we are committed to providing reasonable accommodations for qualified individuals with disabilities or special needs in our working environment and job application procedures. If you have any questions before applying please write to us at recruitment@aiven.io.

We’re a global team of over 400 people, working together to push the boundaries of open-source technology and multi-cloud solutions. Our vision is to help developers, builders, and creators bring their ideas to life with speed and simplicity, by providing a cloud data platform that makes open-source databases, search, streaming, and application infrastructure easily accessible to everyone. 

The Role:

We are looking for a Senior Software Engineer to work on our cloud operations platform turning the best open source technologies into frustration-free cloud services. You’ll be part of the team that is focused on developing the PostgreSQL services and building out our new managed analytics offering.

Our goal is to bridge the gap between traditional transactional databases and analytical processing. Our philosophy is to automate everything and to avoid repetitive manual work in everything we do. Our own backend systems are mostly implemented in Python with bits of Java, Go and C.

What You'll Do:

• Write high-quality, maintainable code and release quality features.
• Participate in technical discussions and perform PR reviews.
• Optimize data storage and query performance for both OLTP (PostgreSQL) and OLAP workloads.
• Contribute to technical planning and backlog management.
• Help investigate and resolve customer issues.
• Mentor and empower other engineers.
• Automate processes to eliminate repetitive manual work.
• Develop and improve the scalability and reliability of PostgreSQL service.

What We're Looking For:

Don’t worry if your experience doesn’t line up perfectly – we still encourage you to apply! We believe in investing in our crabs’ professional growth.

Must Have:

• Excellent development skills in Python
• 5+ years of experience working with one of these databases - PostgreSQL, MySQL, MariaDB, SQL Server, OracleDB
• Experience in data engineering, including building ETL pipelines and working with large-scale datasets.
• Good understanding of data modeling, schema design, and query optimization.
• Experience with backup solutions and backup strategies
• Advanced understanding of Linux OS
• Experience with automated testing
• Distributed systems knowledge
• Experience with performance improvements, bug fixes, and security vulnerability resolution
• Fluency in English, verbal and written.

Nice to Have:

• Good understanding of security (software, networking)
• Experience with OLAP technologies, columnar databases, stream processing or distributed computing engines.
• Experience in infrastructure as code
• Experience in cloud DBAAS production environments
• Experience in production software environments

Amazing! What’s next:

If you think Aiven is the place for you and that our Values align with yours, send us your resume and we’ll get in touch!

Global Benefits:

Our global benefits are designed to help you thrive and grow, personally and professionally:

• Participate in Aiven’s equity plan.
• Balance work and life with our hybrid work policy.
• Choose the equipment you need to set yourself up for success.
• Use your Professional Development Plan budget for learning opportunities.
• Receive holistic wellbeing support through our global Employee Assistance Program.
• Inquire about our Global Time Off Commitment (Parental and Sick Leave, as well as Personal Time)
• Enjoy country-specific benefits for our global cast.

How to Recognize and Avoid Employment Scams:

There has been a rise in fake job postings used by scammers to get personal information. At Aiven, all of our emails relating to recruitment come from an @aiven.io, @greenhouse.io or @eu.greenhouse.io domain and all of our interviews are conducted by video call or in person.  Our interviews will never occur via text or chat. If you’re unsure of the legitimacy of a job opportunity/offer pertaining to Aiven, please don’t hesitate to reach out to us at recruitment@aiven.io.

Equal Opportunities:

Aiven provides equal employment opportunities to all qualified employees and applicants for employment without regard to age, gender identity, national or ethnic origin, religion, sexual orientation, physical and mental ability, marital and family status or without regard to any other similar personal attributes. Aiven complies with applicable local laws governing non-discrimination in employment in every location in which the company operates. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, transfer, leaves of absence, compensation, training and any other terms and conditions related to employment.

At Aiven we are committed to providing reasonable accommodations for qualified individuals with disabilities or special needs in our working environment and job application procedures. We make all reasonable accommodations for persons with disabilities or who otherwise need support to thrive in the workplace. We are committed to continuously improving workplace accessibility. There is an option to request a discussion in the application process but if you have any questions before applying please write to us at recruitment@aiven.io.

We’re a global team of over 400 people, working together to push the boundaries of open-source technology and multi-cloud solutions. Our vision is to help developers, builders, and creators bring their ideas to life with speed and simplicity, by providing a cloud data platform that makes open-source databases, search, streaming, and application infrastructure easily accessible to everyone. 

The Role:

We are looking for a Senior Software Engineer to work on our cloud operations platform turning the best open source technologies into frustration-free cloud services. You’ll be part of the team that is focused on developing the Valkey services and improving their scalability and reliability.

Our philosophy is to automate everything and to avoid repetitive manual work in everything we do. Our own backend systems are mostly implemented in Python with bits of Java, Go and C.

What You'll Do:

• Write high-quality, maintainable code and release quality features.
• Participate in technical discussions and perform PR reviews.
• Contribute to technical planning and backlog management.
• Help investigate and resolve customer issues.
• Mentor and empower other engineers.
• Automate processes to eliminate repetitive manual work.
• Develop and improve the scalability and reliability of Valkey service.

What We're Looking For:

Don’t worry if your experience doesn’t line up perfectly – we still encourage you to apply! We believe in investing in our crabs’ professional growth.

Must Have:

• Excellent development skills in Python
• 3+ years of experience working with one of these databases - PostgreSQL, MySQL, MariaDB, SQL Server, OracleDB
• 2+ years of experience working with an in-memory database: Valkey, Redis, Dragonfly, KeyDB
• Experience with backup solutions and backup strategies
• Advanced understanding of Linux OS
• Experience with automated testing
• Distributed systems knowledge
• Experience with performance improvements, bug fixes, and security vulnerability resolution
• Fluency in English, verbal and written.

Nice to Have:

• Good understanding of security (software, networking)
• Experience in infrastructure as code
• Experience in cloud DBAAS production environments
• Experience in production software environments

Amazing! What’s next:

If you think Aiven is the place for you and that our Values align with yours, send us your resume and we’ll get in touch!

Global Benefits:

Our global benefits are designed to help you thrive and grow, personally and professionally:

• Participate in Aiven’s equity plan.
• Balance work and life with our hybrid work policy.
• Choose the equipment you need to set yourself up for success.
• Use your Professional Development Plan budget for learning opportunities.
• Receive holistic wellbeing support through our global Employee Assistance Program.
• Inquire about our Global Time Off Commitment (Parental and Sick Leave, as well as Personal Time)
• Enjoy country-specific benefits for our global cast.

How to Recognize and Avoid Employment Scams:

There has been a rise in fake job postings used by scammers to get personal information. At Aiven, all of our emails relating to recruitment come from an @aiven.io, @greenhouse.io or @eu.greenhouse.io domain and all of our interviews are conducted by video call or in person.  Our interviews will never occur via text or chat. If you’re unsure of the legitimacy of a job opportunity/offer pertaining to Aiven, please don’t hesitate to reach out to us at recruitment@aiven.io.

Equal Opportunities:

Aiven provides equal employment opportunities to all qualified employees and applicants for employment without regard to age, gender identity, national or ethnic origin, religion, sexual orientation, physical and mental ability, marital and family status or without regard to any other similar personal attributes. Aiven complies with applicable local laws governing non-discrimination in employment in every location in which the company operates. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, transfer, leaves of absence, compensation, training and any other terms and conditions related to employment.

At Aiven we are committed to providing reasonable accommodations for qualified individuals with disabilities or special needs in our working environment and job application procedures. We make all reasonable accommodations for persons with disabilities or who otherwise need support to thrive in the workplace. We are committed to continuously improving workplace accessibility. There is an option to request a discussion in the application process but if you have any questions before applying please write to us at recruitment@aiven.io.

We’re a global team of over 400 people, working together to push the boundaries of open-source technology and multi-cloud solutions. Our vision is to help developers, builders, and creators bring their ideas to life with speed and simplicity, by providing a cloud data platform that makes open-source databases, search, streaming, and application infrastructure easily accessible to everyone. 

The Role:

We are looking for a Software Engineer to work on our cloud operations platform turning the best open-source technologies into frustration-free cloud services. You’ll be part of the team that is focused on developing the PostgreSQL services and improving their scalability and reliability.

Our philosophy is to automate everything and to avoid repetitive manual work in everything we do. Our own backend systems are mostly implemented in Python with bits of Java, Go and C.

What You'll Do:

• Write high-quality, maintainable code and release quality features.
• Participate in technical discussions and perform PR reviews.
• Contribute to technical planning and backlog management.
• Help investigate and resolve customer issues.
• Mentor and empower other engineers.
• Automate processes to eliminate repetitive manual work.
• Develop and improve the scalability and reliability of PostgreSQL service.

What We're Looking For:

Don’t worry if your experience doesn’t line up perfectly – we still encourage you to apply! We believe in investing in our crabs’ professional growth.

• Solid development skills in Python
• Experience working with one of these databases - PostgreSQL, MySQL, MariaDB, SQL Server, OracleDB
• Experience with backup solutions and backup strategies
• Advanced understanding of Linux OS
• Experience with automated testing
• Distributed systems knowledge
• Experience with performance improvements, bug fixes, and security vulnerability resolution
• Fluency in English, verbal and written.

Nice to Have:

• Good understanding of security (software, networking)
• Experience in infrastructure as code
• Experience in cloud DBAAS production environments
• Experience in production software environments

Amazing! What’s next:

If you think Aiven is the place for you and that our Values align with yours, send us your resume and we’ll get in touch!

Global Benefits:

Our global benefits are designed to help you thrive and grow, personally and professionally:

• Participate in Aiven’s equity plan.
• Balance work and life with our hybrid work policy.
• Choose the equipment you need to set yourself up for success.
• Use your Professional Development Plan budget for learning opportunities.
• Receive holistic wellbeing support through our global Employee Assistance Program.
• Inquire about our Global Time Off Commitment (Parental and Sick Leave, as well as Personal Time)
• Enjoy country-specific benefits for our global cast.

How to Recognize and Avoid Employment Scams:

There has been a rise in fake job postings used by scammers to get personal information. At Aiven, all of our emails relating to recruitment come from an @aiven.io, @greenhouse.io or @eu.greenhouse.io domain and all of our interviews are conducted by video call or in person.  Our interviews will never occur via text or chat. If you’re unsure of the legitimacy of a job opportunity/offer pertaining to Aiven, please don’t hesitate to reach out to us at recruitment@aiven.io.

Equal Opportunities:

Aiven provides equal employment opportunities to all qualified employees and applicants for employment without regard to age, gender identity, national or ethnic origin, religion, sexual orientation, physical and mental ability, marital and family status or without regard to any other similar personal attributes. Aiven complies with applicable local laws governing non-discrimination in employment in every location in which the company operates. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, transfer, leaves of absence, compensation, training and any other terms and conditions related to employment.

At Aiven we are committed to providing reasonable accommodations for qualified individuals with disabilities or special needs in our working environment and job application procedures. We make all reasonable accommodations for persons with disabilities or who otherwise need support to thrive in the workplace. We are committed to continuously improving workplace accessibility. There is an option to request a discussion in the application process but if you have any questions before applying please write to us at recruitment@aiven.io.

Position Overview:

We are looking for more professionals to join our ranks. You will be participating in the development and maintenance of our internal, in-house developer, web tools, web dashboards, and services used by our player support, external support partners, and game teams. Some of the languages we use include Typescript, Scala, Java, C#, Python and Go.

What You'll Do:

• Responsible for developing & maintaining our in-house developed web tools, used by player support, external support partners, and game teams.
• You will be working closely with player support, development and analytics teams
• Implementing and maintaining our backend integrations with 3rd party services

What You Bring:

• Good teamwork and communication skills
• A solid history in professional programming 
• Experience in web development and modern JavaScript frameworks (Vue.js, React, Angular)
• Good understanding of Typescript, Scala, Java, C#, Go or other statically typed languages
• Experience in working with RESTful and web APIs
• A razor sharp mind and the ability to learn new things extremely quickly
• A positive “can-do” attitude

Bonus Points:

• Understanding of AWS infrastructure or experience with public cloud
• Experience with MongoDB
• Solid understanding of application and cloud security
• Interest in games and game development
• Interest in AI and AI powered workflows

We offer you:

• Competitive salary and benefits
• Exciting, fun and highly successful projects to work on
• Extremely talented and helpful colleagues
• Lots of power and responsibility
• Office conveniently located in downtown Helsinki 

#LI-Hybrid

#LI-NH3

Position Overview:

We are looking for more professionals to join our ranks. You will be participating in the development and maintenance of our internal analytics pipeline, dashboards and metrics. Some of the languages we use include Typescript, Go, Scala, Java, C# and Python.

What You'll Do: 

• Developing our internal analytics services and tools
• Improving and implementing UI elements and visualisations for our internal dashboards
• Maintaining the analytics services infrastructure

What You Bring:

• Good teamwork and communication skills
• Experience in web development and modern JavaScript frameworks (Vue.js, React)
• Good understanding of Typescript, Go, Scala, Java or other statically typed languages
• Basic or intermediate level SQL skills
• Comfortable with math, numbers and statistics
• A razor sharp mind and the ability to learn new things extremely quickly
• A positive “can-do” attitude

Bonus Points:

• A long history of programming, either as a hobby or as a professional
• Understanding of AWS infrastructure
• Solid understanding of application and cloud security
• Interest in games and game development

What We Offer You: 

• Competitive salary and benefits
• Exciting, fun and highly successful projects to work on
• Extremely talented and helpful colleagues
• Lots of power and responsibility
• Office conveniently located in downtown Helsinki 

#LI-Hybrid

#LI-NH3

Mission

Speechify is the easiest way to listen to the world’s information. Articles on the web, documents in the cloud, books on your phone. We absorb it all and let you listen to it at your desk, on the go, at your own speed, and with tools that make learning easier, deeper, and faster.

What streaming services have done for audio entertainment, we’re doing for audio information. And whatever we’re doing seems to be working. We’re #1 in our category, and experiencing exponential growth.

Overview

We're looking for a Senior Software Engineer to join our Core Experiences Team. This team builds and maintains the foundational services and SDKs that power Speechify’s product experience across platforms. It's a critical role for someone who enjoys working at the intersection of product and infrastructure, thinks strategically, and is passionate about designing clear, reliable APIs and simple systems that directly enhance the user experience.

What You’ll Do

• Collaborate with Speechify’s Product Teams to scope projects, find ways to reduce scope to get faster feedback from customers, navigate the integration/UX tradeoffs relevant to different product teams, and deliver solutions via our cross-platform SDK
• Optimize existing functionality to ship things like faster loading and more intelligent parsing by designing more efficient abstractions and improving our algorithms
• Ship cloud functions, lightweight backend services, and jobs using Kotlin

An Ideal Candidate Should Have

• Systems thinking. You know that optimizing a system requires end-to-end design, and you believe simplicity is valuable.
• Speed. You work quickly to generate ideas and options and know how to decide which things can ship now and what things need time
• Focus. We’re a high-growth startup with a busy, remote team. You know how and when to engage or be heads down
• Collaboration. You know how to inspire, play, and negotiate with opinionated designers, marketers, and PMs
• Preferred Tech Stack:
  • Kotlin Multiplatform (Java experience is OK but role is Kotlin Multiplatform) 
  • Prior experience with GCP is a plus

What We Offer

• A fast-growing environment where you can help shape the company and product.
• An entrepreneurial-minded team that supports risk, intuition, and hustle.
• A hands-off management approach so you can focus and do your best work.
• An opportunity to make a big impact in a transformative industry.
• Competitive salaries, a friendly and laid-back atmosphere, and a commitment to building a great asynchronous culture.
• Opportunity to work on a life-changing product that millions of people use.
• Build products that directly impact and support people with learning differences like dyslexia, ADD, low vision, concussions, autism, and more.
• Work in one of the fastest growing sectors of tech, the intersection of artificial intelligence and audio.

Think you’re a good fit for this job? 

Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.

Not looking but know someone who would make a great fit? 

Refer them! 

Speechify is committed to a diverse and inclusive workplace. 

Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.

We are looking for a Staff Engineer to join team Aqueduct, a team building our data platform for powering large-scale cross-platform advertising. Our ideal candidate is a seasoned professional who has experience in designing, implementing and managing data platforms and pipelines that are scalable, reliable and efficient.

For our customers, ensuring their data is available and composable can:

• unlock the potential of creative automation with image and video templates
• power agentic workflows that utilise the data
• allow analysis of the relationship between product data and ad performance.

Being able to sync our customers’ product data across multiple advertising channels consistently and with minimal delays ensures that:

• the ads consumers see have the latest information
• products that are out of stock are not advertised
• regulatory requirements are met

The team currently has a backend written in Ruby on Rails, and we own small parts of the frontend written in TypeScript and React. We’re moving our data systems from Ruby to a language and architecture better suited for the workload and capable of scaling with our growth. We're looking for an expert to lead the build and design of this new platform using the right tools for the job.

Projects you get to work with

• Design and build a large scale data storage and processing system that needs to process billions of records per day
• Drive the long term architecture and engineering excellence inside the team by coaching and mentoring other engineers
• Collaborate with stakeholders from across the organization: engineering, product and business
• Define and monitor SLAs, and follow SRE best practices to ensure the stability and availability of the system
• Build APIs for internal and external consumers of the data
• Affect the ROI for billions of dollars in ad spend

What We Are Looking For

• 8+ years of industry experience
• Strong programming skills (e.g., Python, Scala and/or Java)
• Deep experience with data processing frameworks (e.g., Spark, Flink, Databricks, Snowflake, BigQuery, Redshift, ClickHouse)
• Familiarity with streaming systems (e.g Kafka, Kinesis)
• Expertise in SQL and some RDBMS (PostgreSQL, Citus, etc.)
• Experience with orchestration tools (e.g., Airflow, Argo)
• Experience with data governance tools (e.g., OpenMetadata, GreatExpectations, Apache Atlas, dbt)
• Solid understanding of distributed systems and cloud platforms (AWS/GCP/Azure)
• Proven track record of designing large-scale data systems
• Experience in technical leadership and mentoring other engineers
• Experience with Ruby on Rails is considered a plus
• Ability to work in a hybrid capacity from our Helsinki office 3 days a week 

What We Offer You

At Smartly, we offer a place where you can advance your career. Here, you'll find:

An Inclusive Global Culture: Join a team of over 750 Smartlies, representing more than 60 nationalities across 24 locations in 13 countries. We cultivate a culture built on trust, transparency, and open feedback, where diverse perspectives are valued and encouraged.

Global Impact: Contribute to a company making a global impact, directly influencing our customers' success and business growth.

Focus on Wellbeing: We prioritize your health with healthcare packages, mental health services, and a commitment to work-life balance through paid holidays and family leave.

Comprehensive Rewards: Benefit from equity options, performance-based rewards, competitive compensation, and career development opportunities.

Flexible Hybrid Workplace: Experience a hybrid work model, balancing office collaboration with remote work, and the option to work abroad for up to 30 days annually.

Smartly is committed to being a great place for growth-minded individuals to thrive. Explore more in our Culture Handbook!

Apply Now and Build Your Future with Smartly!

Curious what it’s like to work at Smartly? Visit our Careers page to see how we grow, collaborate, and make impact together

#LI-HYBRID

We are looking for a Staff Machine Learning Engineer to join the AI Platform Team at Smartly! Our team works on helping marketers make the most of their ad creatives (images, video, text) and campaigns (product and performance data). We build and experiment with AI-based solutions across the media and creative workflows.You will have the opportunity to take ownership of and work on high impact projects.

Join us in building high impact ML-based solutions to help our customers to build better and more effective advertising experiences for their consumers. If you’re a growth minded individual who has a passion for ML and the marketing space, this team is for you!

As a Staff Machine Learning Engineer, you’ll:

• Build ML-based software systems that enable our users to craft great advertising experiences and campaigns 
• Drive the longer term technical architecture evolution of your domain.  
• Be a role model for technical excellence in your field inside Smartly
• Coach, mentor and train our ML Engineering talent.
• Work with a large span of datasets from image to video to audio to text to structured performance data.
• Contribute to and strengthen Smartly’s MLOps + data platform. You’ll work alongside our stellar senior machine learning engineers, data scientists, and software engineers to enable us to productionize AI/ML applications more robustly and efficiently.
• Impact the daily life of the staff of the hundreds of advertisers using Smartly 
• Work with our stakeholders - be them product, engineering, infrastructure - to ensure we meet customers where they are. As with most ML-related roles, being able to translate business/product needs to viable solutions is a must.
• Apply and enhance your soft skills through working closely with your colleagues and our customers. Doing knowledge shares, running productive meetings, and pair programming/debugging are just some ways we grow our soft skills.
• Keep up to date with the latest ML innovations, especially in areas such as generative AI, computer vision, natural language processing and explainability.

What we are looking for:

• 8+ years of experience developing and deploying production-quality software
• 5+ years of experience delivering software services powered by machine learning
• 4+ years of experience working with cloud infrastructure such as AWS or GCP
• Fluent in Python; experience with C++ or Java is a plus
• Demonstrated experience managing the technical direction of a software system
• Experience in coaching and mentoring senior engineers
• Hands-on experience with modern ML frameworks (e.g., PyTorch, TensorFlow)
• Knowledge of MLOps concepts and tools (e.g., MLflow, Kubeflow)
• Experience in feature engineering, model evaluation, diagnostics, and monitoring
• Strong foundation in linear algebra, statistics, and calculus
• Experience building scalable data pipelines for ML-based data processing
• Experience developing and maintaining services under SLA
• Analytical mindset with a problem-solving approach
• Passion for solving customer challenges quickly while making thoughtful architectural decisions
• Adaptability and resilience when facing new or ambiguous challenges
• Strong written and verbal communication skills in English
• M.Sc. in a relevant field is preferred
• Ability and willingness to work in a hybrid capacity from our office 3 days a week

What We Offer You:

• Inclusive Culture: Join a team of over 750 Smartlies representing more than 60 nationalities across 24 locations in 13 countries, we foster a culture built on trust, transparency, and open feedback.
• Global Impact: Be part of a company making a global impact, directly influencing our customers and business growth.
• Wellbeing Focus: Enjoy generous healthcare packages, mental health services, and a healthy work-life balance with paid holidays and family leave.
• Total Rewards: Benefit from equity options, performance-based rewards, competitive compensation, and ample career development opportunities.
• Hybrid Workplace: We work in a hybrid model, balancing office and remote work, with the option to work abroad for up to 30 days.

Smartly is committed to being the best place to work for growth-minded individuals to thrive - explore more in our Culture Handbook!

#LI-JF2 #LI-Hybrid 

We are looking for a Senior Data Scientist to join the AI Platform Team at Smartly! Our team works on helping marketers make the most of their ad creatives (images, video, text) and campaigns (product and performance data). We build and experiment with AI-based solutions across the media and creative workflows. You will have the opportunity to take ownership of and work on high impact projects.

Join us in building high impact ML-based solutions to help our customers to build better and more effective advertising experiences for their consumers. If you’re a growth minded individual who has a passion for Data Science and the marketing space, this team is for you!

As a Senior Data Scientist, you’ll:

• Implement, build, and deploy scalable models and machine learning solutions that enable our users to craft great advertising experiences and campaigns with a focus on maintainability, observability, scalability and stability.
• Own projects end-to-end: from problem framing and data exploration to modeling, validation, and monitoring in production.
• Work with a large span of datasets from image to video to audio to text to structured performance data. 
• Analyze large-scale datasets to uncover insights, trends, and opportunities that inform product strategy and customer outcomes.
• You’ll work alongside our stellar data scientists, senior machine learning engineers, and software engineers to enable us to productionize AI/ML applications more robustly and efficiently.
• Be a core contributor of our team and our ways of working to build high impact products. You’ll actively be involved in work planning, retrospectives, and overall team improvement.
• Impact the daily life of the staff of the hundreds of advertisers using Smartly 
• Work with our stakeholders - be them product, engineering, infrastructure - to ensure we meet customers where they are. Being able to translate business/product needs to viable solutions is a must.
• Apply and enhance your soft skills through working closely with your colleagues and our customers. Doing knowledge shares, running productive meetings, and pair programming/debugging are just some ways we grow our soft skills.
• Keep up to date with the latest AI innovations, especially in areas such as generative AI, computer vision, natural language processing and explainability.

What we are looking for:

• 5+ years of experience in data science or applied machine learning
• 2+ years of experience working with cloud infrastructure such as AWS or GCP
• Strong foundation in linear algebra, statistics, and calculus
• Fluent in Python; experience with C++ or Java is a plus
• Hands-on experience with modern ML frameworks (e.g., PyTorch, TensorFlow)
• Knowledge of MLOps concepts and tools (e.g., MLflow, Kubeflow)
• Experience in feature engineering, model design, evaluation, diagnostics, and monitoring
• Analytical mindset with a problem-solving approach
• Passion for solving customer challenges quickly while making thoughtful architectural decisions
• Ability to communicate complex technical findings to both technical and non-technical stakeholders.
• Strong written and verbal communication skills in English
• M.Sc. in a relevant field is preferred
• Ability and willingness to work in a hybrid capacity from our office 3 days a week

What We Offer You:

• Inclusive Culture: Join a team of over 750 Smartlies representing more than 60 nationalities across 24 locations in 13 countries, we foster a culture built on trust, transparency, and open feedback.
• Global Impact: Be part of a company making a global impact, directly influencing our customers and business growth.
• Wellbeing Focus: Enjoy generous healthcare packages, mental health services, and a healthy work-life balance with paid holidays and family leave.
• Total Rewards: Benefit from equity options, performance-based rewards, competitive compensation, and ample career development opportunities.
• Hybrid Workplace: We work in a hybrid model, balancing office and remote work, with the option to work abroad for up to 30 days.

Smartly is committed to being the best place to work for growth-minded individuals to thrive - explore more in our Culture Handbook!

#LI-OK #LI-Hybrid

We are looking for a Senior Data Scientist to join the AI Platform Team at Smartly! Our team works on helping marketers make the most of their ad creatives (images, video, text) and campaigns (product and performance data). We build and experiment with AI-based solutions across the media and creative workflows. You will have the opportunity to take ownership of and work on high impact projects.

Join us in building high impact ML-based solutions to help our customers to build better and more effective advertising experiences for their consumers. If you’re a growth minded individual who has a passion for Data Science and the marketing space, this team is for you!

As a Senior Data Scientist, you’ll:

• Implement, build, and deploy scalable models and machine learning solutions that enable our users to craft great advertising experiences and campaigns with a focus on maintainability, observability, scalability and stability.
• Own projects end-to-end: from problem framing and data exploration to modeling, validation, and monitoring in production.
• Work with a large span of datasets from image to video to audio to text to structured performance data. 
• Analyze large-scale datasets to uncover insights, trends, and opportunities that inform product strategy and customer outcomes.
• You’ll work alongside our stellar data scientists, senior machine learning engineers, and software engineers to enable us to productionize AI/ML applications more robustly and efficiently.
• Be a core contributor of our team and our ways of working to build high impact products. You’ll actively be involved in work planning, retrospectives, and overall team improvement.
• Impact the daily life of the staff of the hundreds of advertisers using Smartly 
• Work with our stakeholders - be them product, engineering, infrastructure - to ensure we meet customers where they are. Being able to translate business/product needs to viable solutions is a must.
• Apply and enhance your soft skills through working closely with your colleagues and our customers. Doing knowledge shares, running productive meetings, and pair programming/debugging are just some ways we grow our soft skills.
• Keep up to date with the latest AI innovations, especially in areas such as generative AI, computer vision, natural language processing and explainability.

What we are looking for:

• 5+ years of experience in data science or applied machine learning
• 2+ years of experience working with cloud infrastructure such as AWS or GCP
• Strong foundation in linear algebra, statistics, and calculus
• Fluent in Python; experience with C++ or Java is a plus
• Hands-on experience with modern ML frameworks (e.g., PyTorch, TensorFlow)
• Knowledge of MLOps concepts and tools (e.g., MLflow, Kubeflow)
• Experience in feature engineering, model design, evaluation, diagnostics, and monitoring
• Analytical mindset with a problem-solving approach
• Passion for solving customer challenges quickly while making thoughtful architectural decisions
• Ability to communicate complex technical findings to both technical and non-technical stakeholders.
• Strong written and verbal communication skills in English
• M.Sc. in a relevant field is preferred
• Ability and willingness to work in a hybrid capacity from our office 3 days a week

What We Offer You:

• Inclusive Culture: Join a team of over 750 Smartlies representing more than 60 nationalities across 24 locations in 13 countries, we foster a culture built on trust, transparency, and open feedback.
• Global Impact: Be part of a company making a global impact, directly influencing our customers and business growth.
• Wellbeing Focus: Enjoy generous healthcare packages, mental health services, and a healthy work-life balance with paid holidays and family leave.
• Total Rewards: Benefit from equity options, performance-based rewards, competitive compensation, and ample career development opportunities.
• Hybrid Workplace: We work in a hybrid model, balancing office and remote work, with the option to work abroad for up to 30 days.

Smartly is committed to being the best place to work for growth-minded individuals to thrive - explore more in our Culture Handbook!

#LI-OK #LI-Hybrid

We are looking for a Senior Machine Learning Engineer to join the AI Platform Team at Smartly! Our team works on helping marketers make the most of their ad creatives (images, video, text) and campaigns (product and performance data). We build and experiment with AI-based solutions across the media and creative workflows.You will have the opportunity to take ownership of and work on high impact projects.

Join us in building high impact ML-based solutions to help our customers to build better and more effective advertising experiences for their consumers. If you’re a growth minded individual who has a passion for ML and the marketing space, this team is for you!

As a Senior Machine Learning Engineer, you’ll:

• Build ML-based software systems that enable our users to craft great advertising experiences and campaigns 
• Work with a large span of datasets from image to video to audio to text to structured performance data.
• Contribute to and strengthen Smartly’s MLOps + data platform. You’ll work alongside our stellar senior machine learning engineers, data scientists, and software engineers to enable us to productionize AI/ML applications more robustly and efficiently.
• Be a core contributor of our team and our ways of working to build high impact products. You’ll actively be involved in work planning, retrospectives, and overall team improvement.
• Impact the daily life of the staff of the hundreds of advertisers using Smartly 
• Work with our stakeholders - be them product, engineering, infrastructure - to ensure we meet customers where they are. As with most ML-related roles, being able to translate business/product needs to viable solutions is a must.
• Apply and enhance your soft skills through working closely with your colleagues and our customers. Doing knowledge shares, running productive meetings, and pair programming/debugging are just some ways we grow our soft skills.
• Keep up to date with the latest ML innovations, especially in areas such as generative AI, computer vision, natural language processing and explainability.

What we are looking for:

• 5+ years of experience developing and deploying production-quality software
• 2+ years of experience delivering software services powered by machine learning
• 2+ years of experience working with cloud infrastructure such as AWS or GCP
• Fluent in Python; experience with C++ or Java is a plus
• Hands-on experience with modern ML frameworks (e.g., PyTorch, TensorFlow)
• Knowledge of MLOps concepts and tools (e.g., MLflow, Kubeflow)
• Experience in feature engineering, model evaluation, diagnostics, and monitoring
• Strong foundation in linear algebra, statistics, and calculus
• Experience building scalable data pipelines for ML-based data processing
• Experience developing and maintaining services under SLA
• Analytical mindset with a problem-solving approach
• Passion for solving customer challenges quickly while making thoughtful architectural decisions
• Adaptability and resilience when facing new or ambiguous challenges
• Strong written and verbal communication skills in English
• M.Sc. in a relevant field is preferred
• Ability and willingness to work in a hybrid capacity from our office 3 days a week

What We Offer You:

• Inclusive Culture: Join a team of over 750 Smartlies representing more than 60 nationalities across 24 locations in 13 countries, we foster a culture built on trust, transparency, and open feedback.
• Global Impact: Be part of a company making a global impact, directly influencing our customers and business growth.
• Wellbeing Focus: Enjoy generous healthcare packages, mental health services, and a healthy work-life balance with paid holidays and family leave.
• Total Rewards: Benefit from equity options, performance-based rewards, competitive compensation, and ample career development opportunities.
• Hybrid Workplace: We work in a hybrid model, balancing office and remote work, with the option to work abroad for up to 30 days.

Smartly is committed to being the best place to work for growth-minded individuals to thrive - explore more in our Culture Handbook!

#LI-JF2 #LI-Hybrid 

We’re a global team of over 400 people, working together to push the boundaries of open-source technology and multi-cloud solutions. Our vision is to help developers, builders, and creators bring their ideas to life with speed and simplicity, by providing a cloud data platform that makes open-source databases, search, streaming, and application infrastructure easily accessible to everyone.

The Role:

We are looking for a Senior Software Engineer to work on our cloud operations platform turning the best open source technologies into frustration-free cloud services. You’ll be part of the team that is focused on developing the PostgreSQL services and improving their scalability and reliability.

Our philosophy is to automate everything and to avoid repetitive manual work in everything we do. Our own backend systems are mostly implemented in Python with bits of Java, Go and C.

What You'll Do:

• Write high-quality, maintainable code and release quality features.
• Participate in technical discussions and perform PR reviews.
• Contribute to technical planning and backlog management.
• Help investigate and resolve customer issues.
• Mentor and empower other engineers.
• Automate processes to eliminate repetitive manual work.
• Develop and improve the scalability and reliability of PostgreSQL service.

What We're Looking For:

Don’t worry if your experience doesn’t line up perfectly – we still encourage you to apply! We believe in investing in our crabs’ professional growth.

Must Have:

• Excellent development skills in Python
• 5+ years of experience working with one of these databases - PostgreSQL, MySQL, MariaDB, SQL Server, OracleDB
• Experience with backup solutions and backup strategies
• Advanced understanding of Linux OS
• Experience with automated testing
• Distributed systems knowledge
• Experience with performance improvements, bug fixes, and security vulnerability resolution
• Fluency in English, verbal and written.

Nice to Have:

• Good understanding of security (software, networking)
• Experience in infrastructure as code
• Experience in cloud DBAAS production environments
• Experience in production software environments

Amazing! What’s next:

If you think Aiven is the place for you and that our Values align with yours, send us your resume and we’ll get in touch!

Global Benefits:

Our global benefits are designed to help you thrive and grow, personally and professionally:

• Participate in Aiven’s equity plan.
• Balance work and life with our hybrid work policy.
• Choose the equipment you need to set yourself up for success.
• Use your Professional Development Plan budget for learning opportunities.
• Receive holistic wellbeing support through our global Employee Assistance Program.
• Inquire about our Global Time Off Commitment (Parental and Sick Leave, as well as Personal Time)
• Enjoy country-specific benefits for our global cast.

How to Recognize and Avoid Employment Scams:

There has been a rise in fake job postings used by scammers to get personal information. At Aiven, all of our emails relating to recruitment come from an @aiven.io, @greenhouse.io or @eu.greenhouse.io domain and all of our interviews are conducted by video call or in person.  Our interviews will never occur via text or chat. If you’re unsure of the legitimacy of a job opportunity/offer pertaining to Aiven, please don’t hesitate to reach out to us at recruitment@aiven.io.

Equal Opportunities:

Aiven provides equal employment opportunities to all qualified employees and applicants for employment without regard to age, gender identity, national or ethnic origin, religion, sexual orientation, physical and mental ability, marital and family status or without regard to any other similar personal attributes. Aiven complies with applicable local laws governing non-discrimination in employment in every location in which the company operates. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, transfer, leaves of absence, compensation, training and any other terms and conditions related to employment.

At Aiven we are committed to providing reasonable accommodations for qualified individuals with disabilities or special needs in our working environment and job application procedures. We make all reasonable accommodations for persons with disabilities or who otherwise need support to thrive in the workplace. We are committed to continuously improving workplace accessibility. There is an option to request a discussion in the application process but if you have any questions before applying please write to us at recruitment@aiven.io.

Check out what we’ve built so far:

Our Helsinki team consists of 100 tech professionals; +26 different nationalities. We pride ourselves on being client-focused and collaborative, on the pioneering edge of technology. We also have fun. Whether it’s office happy hours, team outings, or game nights, we believe in working with people we like to hang out with.

Ideal candidate traits

If you identify as a team player and you are humble, hungry, and smart with Sisu — we would love to get to know you. We believe these qualities to be vital to building a strong, productive, and collaborative work environment, where everyone is committed to achieving common goals and working towards shared success.

We are looking for people who are willing to learn from others, who can put their egos aside and prioritize the needs of the team. You should also be highly motivated, driven to succeed, and always looking for ways to improve. We value emotional intelligence, excellent communication skills, and a collaborative spirit that enables them to build strong relationships with teammates and work effectively towards shared goals.

At AlphaSense we are committed to fostering a work culture that encourages these qualities and values the contributions of team players who exhibit them. We seek to match the ambition of ideal team players by offering opportunities for personal and professional growth, providing the resources and support necessary to achieve their goals, and creating an environment where hard work, dedication, and teamwork are celebrated and rewarded. At AlphaSense we are building teams of ideal players who embody the values of Sisu, driving the company’s success and helping us to create a positive impact on the world.

Technologies that we work with:

Frontend

ReactJS, TypeScript, Micro Frontends

Applications

NodeJS, TypeScript, GraphQL, Java 17, Spring Boot, Python, FastAPI

Backend

Java 17, Spring Boot, Python, FastAPI, Kafka

Search and AI

Apache Solr, Elasticsearch, Vector Search, ML, LLM, Pytorch, Tensorflow

Cloud architecture

AWS, GCP, Kubernetes, Crossplane, Argo CD

Quality & reliability

Cypress, Selenium, Selenide, Playwright, Rest Assured, K6, Prometheus, Loki, Grafana

Ready to Make an Impact?

Join our talent community, hear about exciting career opportunities, and get tailored job recommendations based on your interests. If you’re looking for a challenge, if you love finding things that need interesting solutions, AlphaSense is a great place to come. It is a place for builders, for people who want to create the next thing.

Want to hear more?

Contact us and let’s figure out together if we can find a common path. Tell us about yourself and your background in your own words.

Our recruitment typically consists of four rounds of interviews where you will meet our team and learn more about working at AlphaSense. You will be given the opportunity to show your skills and ask us questions. The purpose is to get to know each other better.

About AlphaSense:

The world’s most sophisticated companies rely on AlphaSense to remove uncertainty from decision-making. With market intelligence and search built on proven AI, AlphaSense delivers insights that matter from content you can trust. Our universe of public and private content includes equity research, company filings, event transcripts, expert calls, news, trade journals, and clients’ own research content. Our platform is trusted by over 4,000 enterprise customers, including a majority of the S&P 500.

Founded in 2011, AlphaSense is headquartered in New York City with over 1,500 people across the globe and offices in the U.S., U.K., Finland, India, and Singapore. For more information, please visit www.alpha-sense.com

Check out what we’ve built so far

Our Helsinki team consists of 100 tech professionals; +26 different nationalities. We pride ourselves on being client-focused and collaborative, on the pioneering edge of technology. We also have fun. Whether it’s office happy hours, team outings, or game nights, we believe in working with people we like to hang out with.

Ideal candidate traits

If you identify as a team player and you are humble, hungry, and smart with Sisu — we would love to get to know you. We believe these qualities to be vital to building a strong, productive, and collaborative work environment, where everyone is committed to achieving common goals and working towards shared success.

We are looking for people who are willing to learn from others, who can put their egos aside and prioritize the needs of the team. You should also be highly motivated, driven to succeed, and always looking for ways to improve. We value emotional intelligence, excellent communication skills, and a collaborative spirit that enables them to build strong relationships with teammates and work effectively towards shared goals.

At AlphaSense we are committed to fostering a work culture that encourages these qualities and values the contributions of team players who exhibit them. We seek to match the ambition of ideal team players by offering opportunities for personal and professional growth, providing the resources and support necessary to achieve their goals, and creating an environment where hard work, dedication, and teamwork are celebrated and rewarded. At AlphaSense we are building teams of ideal players who embody the values of Sisu, driving the company’s success and helping us to create a positive impact on the world.

Technologies that we work with:

Frontend

ReactJS, TypeScript, Micro Frontends

Applications

NodeJS, TypeScript, GraphQL, Java 17, Spring Boot, Python, FastAPI

Backend

Java 17, Spring Boot, Python, FastAPI, Kafka

Search and AI

Apache Solr, Elasticsearch, Vector Search, ML, LLM, Pytorch, Tensorflow

Cloud architecture

AWS, GCP, Kubernetes, Crossplane, Argo CD

Quality & reliability

Cypress, Selenium, Selenide, Playwright, Rest Assured, K6, Prometheus, Loki, Grafana

Ready to Make an Impact?

Join our talent community, hear about exciting career opportunities, and get tailored job recommendations based on your interests.

If you’re looking for a challenge, if you love finding things that need interesting solutions, AlphaSense is a great place to come. It is a place for builders, for people who want to create the next thing.

Want to hear more?

Contact us and let’s figure out together if we can find a common path. Tell us about yourself and your background in your own words.

Our recruitment typically consists of four rounds of interviews where you will meet our team and learn more about working at AlphaSense. You will be given the opportunity to show your skills and ask us questions. The purpose is to get to know each other better.

Any thoughts or questions, please reach out to our Talent Acquisition Coordinator, Annie Virtanen on Linkedin or by email; avirtanen@alpha-sense.com