Why Verifone

For more than 30 years Verifone has established a remarkable record of leadership in the electronic payment technology industry. Verifone has one of the leading electronic payment solutions brands and is one of the largest providers of electronic payment systems worldwide.

Verifone has a diverse, dynamic and fast paced work environment in which employees are focused on results and have opportunities to excel. We take pride in the fact that we work with leading retailers, merchants, banks, and third party partners to invent and deliver innovative payments solution around the world. We strive for excellence in our products and services, and are obsessed with customer happiness. Across the globe, Verifone employees are leading the payments industry through experience, innovation, and an ambitious spirit. Whether it’s developing the next platform of secure payment systems or searching for new ways to bring electronic payments to new markets, the team at Verifone is dedicated to the success of our customers, partners and investors. It is this passion for innovation that drives each one of our employees for personal and professional success.

Verifone is proudly an in-office work culture as we see immense benefits to career development and business results from our colleagues being physically co-located.

What's exciting about the role

Skills and Experience we desire

Core Technical Requirements

• Strong experience in C/C++ development
• Solid code analysis skills and ability to follow/enforce coding standards
• Strong Java experience (mandatory)
• Android development experience (HAL layer is a strong advantage)
• Kotlin is a plus, but not sufficient on its own

Tools & Environment

• Experience with Android Studio
• Gradle build system knowledge
• Familiarity with Linux systems
• Experience with JIRA, Confluence, Jenkins, Artifactory (advantage)

Our commitment

Verifone is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. Verifone is also committed to compliance with all fair employment practices regarding citizenship and immigration status.

Our global voice team is looking for a committed, experienced Senior Software Engineer who is passionate about creating high performing, scalable, and resilient mission critical services that are the foundation of Five9’s next generation contact center platform. You will have the opportunity to combine what you already know with new learnings, crafting a bespoke solution that serves our customers and partners.

Responsibilities:

• Participate in an Agile scrum team which practices DevOps.
• Write clean and well-documented code and tests.
• Deliver your code as part of an overall solution running in the public cloud.
• Develop and enhance our Media Server to support real-time integrations with Large Language Models (LLMs) and other AI services.

Required Skills:

• 5+ years professional experience in software development, with some being written in C and/or C++.
• Hands-on experience writing software for real-time communications signaling and media protocols (SIP, RTP, etc.).
• Ability to methodically troubleshoot complex systems.
• Excellent communication and organization skills, and a sense of ownership.

 Technical Skills:

• Modern C++ (C++17+), RTP/SIP, audio codecs, SIP/SDP, ASR/TTS integration, AI APIs, cloud platforms (AWS/Azure/GCP), CI/CD, containers, SRE principles.

Benefits:

• Five9 Shares
• Bonus Scheme
• 10% Flexi Benefit
• Meal Allowance
• Medical Insurance
• Life Insurance 
• 25 day Annual Leave + Public Holidays

Our global voice team is looking for a committed, experienced Senior Software Engineer who is passionate about creating high performing, scalable, and resilient mission critical services that are the foundation of Five9’s next generation contact center platform. You will have the opportunity to combine what you already know with new learnings, crafting a bespoke solution that serves our customers and partners.

Responsibilities:

• Participate in an Agile scrum team which practices DevOps.
• Write clean and well-documented code and tests.
• Deliver your code as part of an overall solution running in the public cloud.
• Develop and enhance our Media Server to support real-time integrations with Large Language Models (LLMs) and other AI services.

Required Skills:

• 3+ years professional experience in software development, with some being written in C and/or C++.
• Ability to methodically troubleshoot complex systems.
• Excellent communication and organization skills, and a sense of ownership.

Preferred Skills:

• Hands-on experience writing software for real-time communications signaling and media protocols (SIP, RTP, etc.).

 Technical Skills:

• Modern C++ (C++17+), RTP/SIP, audio codecs, SIP/SDP, ASR/TTS integration, AI APIs, cloud platforms (AWS/Azure/GCP), CI/CD, containers, SRE principles.

Benefits:

• Five9 Shares
• Bonus Scheme
• 10% Flexi Benefit
• Meal Allowance
• Medical Insurance
• Life Insurance 
• 25 day Annual Leave + Public Holidays

Position Summary

SingleStore engineers build the real-time data platform that enables some of the world’s most demanding applications. Our cloud-native database architecture enables high-performance transactional and analytical workloads at scale.

Our Software Engineers work on small, collaborative teams to help drive our company forward.  Whether you’re improving the fault tolerance a SingleStore cluster, accelerating the performance of SQL queries with techniques like SIMD vectorization and LLVM codeGen, or writing search and costing modules for the query optimizer, our engineers are responsible for building systems critical to high performance workloads.

Note: This role is open across multiple levels. Final leveling (Senior, Staff, or Principal) will be determined based on experience, scope of impact, and demonstrated technical leadership throughout the interview process.

What you'll do:

• Develop database engine features based on company direction and customer requests to ensure that requirements are met in a timely manner 
• Deliver bug-free code in a low-level, unmanaged memory C++ environment
• Translate high-level customer requirements into actionable and deliverable software features
• Learn, propose, and adapt cutting-edge technologies from across industry and academia into SingleStore’s database architecture for ensuring optimal performance and throughput for customer workloads in both analytical and transactional scenarios
• Design and execute comprehensive test plans to evaluate database engine functionality, ensuring thorough coverage and accuracy, using Python, C++, and SQL
• Use low-level debugging techniques including GDB and Flame graphs to fix  problems and improve performance
• Work on distributed systems algorithms and problems/components of core database engine behind SingleStore
• Take part in code reviews and design reviews for the purpose of software quality assurance

Your Experience:

• 4+ years of experience developing and debugging system-level software in unmanaged languages like C++ or Rust
• Bachelor’s degree in Computer Science or equivalent practical experience.
• Demonstrated ability to design and build highly reliable, high-performance system software.

Preferred Qualifications

• Knowledge of database architecture and operating systems
• Familiarity with distributed systems managed via Kubernetes

About us:

SingleStore delivers our cloud-native database with the speed and scale to power the world’s data-intensive applications. With a distributed SQL database that introduces simplicity to your data architecture by unifying transactions and analytics, SingleStore empowers digital leaders to deliver exceptional, real-time data experiences to their customers. SingleStore is venture-backed and headquartered in San Francisco with offices in Sunnyvale, Raleigh, Seattle, Boston, London, Lisbon, Bangalore, Dublin and Kyiv. 

Consistent with our commitment to diversity & inclusion, we value individuals with the ability to work on diverse teams and with a diverse range of people.

To all recruitment agencies: SingleStore does not accept agency resumes. Please do not forward resumes to SingleStore employees. SingleStore is not responsible for any fees related to unsolicited resumes and will not pay fees to any third-party agency or company that does not have a signed agreement with the Company.

SingleStore values individuals for their unique skills and experiences, and we’re proud to offer roles in a variety of locations across the United States. Salary is based on permissible, non-discriminatory factors such as skills, experience, and geographic location, and is just one part of our total compensation and benefits package. Certain roles are also eligible for additional rewards, including merit increases and annual bonuses. 

For candidates residing in California, please see our California Recruitment Privacy Notice. For candidates residing in the EEA, UK, and Switzerland, please see our EEA, UK, and Swiss Recruitment Privacy Notice.

Are you passionate about working with the most cutting-edge technologies, including AI, big data analytics, LLMs, data mining, and business intelligence (BI)? Are you looking to become part of a world-class engineering team? Do you aspire to contribute to a globally recognized, pre-IPO leader in technology?

As a Senior Software Engineer, you will contribute to the design and development of AI-driven architectures that power our next-generation intelligent customer engagement platforms. Your contributions will help shape AI-powered customer experiences, enhancing the intelligence and efficiency of our service platforms.

Job Responsibilities:

• Develop and enhance a cloud-based data foundation system and AI agent platform. This involves leveraging AI/ML models, applying prompt engineering techniques, and conducting data analysis across structured, semi-structured, and unstructured data. Utilize technologies such as data and pattern mining, business intelligence (BI), and data transformation and processing.
• Collaborate with cross-functional teams, including data scientists, software engineers, product managers, and business stakeholders, to deliver a high-performance, reliable, scalable service with assured AI quality.
• Contribute to architectural discussions, providing technical design input and ensuring alignment with the overall technology roadmap while adopting best practices effectively and independently.
• Participate in shaping the engineering roadmap, ensuring solutions are scalable and extensible while meeting business needs.
• Support and mentor junior engineers, fostering a collaborative and innovative development culture.
• Stay up-to-date with industry trends, emerging technologies, and advancements in AI and data engineering.

Qualifications:

• Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
• 5+ years of experience in backend development for cloud-based services, with a strong focus on scalability, reliability, and performance.
• Proficiency in Java, Python, C++, C#, Kotlin, Scala, or similar languages.
• Experience building and optimizing data-intensive services, including data processing, transformation, storage, and retrieval at scale.
• Strong problem-solving skills and ability to design scalable solutions for AI-driven services.
• Strong written and verbal English communication skills.
• Prior experience with data platforms and/or AI services is highly desirable.
• Experience working with distributed data platforms and modern data architectures, such as Apache Spark, Databricks, Kafka, Delta Lake, or similar is a desirable.
• Experience in data science and practical experience applying AI/ML models is a plus.

Additional Notes:
This position will follow a hybrid work model.

At Reltio®, we believe data should fuel business success. Reltio’s AI-powered data unification and management capabilities—encompassing entity resolution, multi-domain master data management (MDM), and data products—transform siloed data from disparate sources into unified, trusted, and interoperable data. The Reltio Connected Data Platform™ delivers interoperable data where and when it's needed, empowering data and analytics leaders with unparalleled business responsiveness. Leading enterprise brands—across multiple industries around the globe—rely on our award-winning data unification and cloud-native MDM capabilities to improve efficiency, manage risk and drive growth.

At Reltio, our values guide everything we do. With an unyielding commitment to prioritizing our “Customer First”, we strive to ensure their success. We embrace our differences and are “Better Together” as One Reltio. We are always looking to “Simplify and Share” our knowledge when we collaborate to remove obstacles for each other. We hold ourselves accountable for our actions and outcomes and strive for excellence. We “Own It”. Every day, we innovate and evolve, so that today is “Always Better Than Yesterday”. If you share and embody these values, we invite you to join our team at Reltio and contribute to our mission of excellence.

Reltio has earned numerous awards and top rankings for our technology, our culture and our people. Reltio was founded on a distributed workforce and offers flexible work arrangements to help our people manage their personal and professional lives. If you’re ready to work on unrivalled technology where your desire to be part of a collaborative team is met with a laser-focused mission to enable digital transformation with connected data, let’s talk!

Website: https://www.reltio.com/

Internship Summary:

• (3 months) internship program.
• Learn how Reltio operates and gain useful skills to take with you in your career from leaders at the company
• Training on Reltio products and platforms to be effective on the job
• Development of scripts/codes and Assist in the design and development of software applications.
• Collaborate with cross-functional teams to understand user requirements and translate them into technical specifications.
• Assist in the documentation of software functionalities and development processes.
• Get involved with live project/team discussions and complete all the assigned tasks on time.
• Working with mentor closely and complete final internship project as expected and within time.

What You Bring to the Team:

• Computer Science and software fundamentals knowledge
• Problem solving
• Good understanding of any of the programming language Java/C++/Python/JavaScript etc.
• Technical ability to work with Engineering teams and understand the technical requirements
• Excellent organization, time management, and communication skills to take initiative and work proactively with minimal supervision
• An entrepreneurial spirit, passionate about what you do, enthusiastic, competitive, disciplined, collaborative, self-motivated with a strong work ethic
• Excellent listener, curious, ability to learn and adapt to new concepts and technologies
• Ability to take direction, be coached and mentored

Benefits:

• Opportunity to solve customer problems related to data unification
• Understand Reltio product and platform very closely
• Transparent, meritocratic, and leadership culture
• Unlimited access to the best technology

At Reltio®, we believe data should fuel business success. Reltio’s AI-powered data unification and management capabilities—encompassing entity resolution, multi-domain master data management (MDM), and data products—transform siloed data from disparate sources into unified, trusted, and interoperable data. The Reltio Connected Data Platform™ delivers interoperable data where and when it's needed, empowering data and analytics leaders with unparalleled business responsiveness. Leading enterprise brands—across multiple industries around the globe—rely on our award-winning data unification and cloud-native MDM capabilities to improve efficiency, manage risk and drive growth.

At Reltio, our values guide everything we do. With an unyielding commitment to prioritizing our “Customer First”, we strive to ensure their success. We embrace our differences and are “Better Together” as One Reltio. We are always looking to “Simplify and Share” our knowledge when we collaborate to remove obstacles for each other. We hold ourselves accountable for our actions and outcomes and strive for excellence. We “Own It”. Every day, we innovate and evolve, so that today is “Always Better Than Yesterday”. If you share and embody these values, we invite you to join our team at Reltio and contribute to our mission of excellence.

Reltio has earned numerous awards and top rankings for our technology, our culture and our people. Reltio was founded on a distributed workforce and offers flexible work arrangements to help our people manage their personal and professional lives. If you’re ready to work on unrivalled technology where your desire to be part of a collaborative team is met with a laser-focused mission to enable digital transformation with connected data, let’s talk!

Website: https://www.reltio.com/

Internship Summary:

• (3 months) internship program.
• Learn how Reltio operates and gain useful skills to take with you in your career from leaders at the company
• Training on Reltio products and platforms to be effective on the job
• Development of scripts/codes and Assist in the design and development of software applications.
• Collaborate with cross-functional teams to understand user requirements and translate them into technical specifications.
• Assist in the documentation of software functionalities and development processes.
• Get involved with live project/team discussions and complete all the assigned tasks on time.
• Working with mentor closely and complete final internship project as expected and within time.

What You Bring to the Team:

• Computer Science and software fundamentals knowledge
• Problem solving
• Good understanding of any of the programming language Java/C++/Python/JavaScript etc.
• Technical ability to work with Engineering teams and understand the technical requirements
• Excellent organization, time management, and communication skills to take initiative and work proactively with minimal supervision
• An entrepreneurial spirit, passionate about what you do, enthusiastic, competitive, disciplined, collaborative, self-motivated with a strong work ethic
• Excellent listener, curious, ability to learn and adapt to new concepts and technologies
• Ability to take direction, be coached and mentored

Benefits:

• Opportunity to solve customer problems related to data unification
• Understand Reltio product and platform very closely
• Transparent, meritocratic, and leadership culture
• Unlimited access to the best technology

Software Engineer, University Graduate

at SingleStore

Lisbon, Portugal

Position Overview

SingleStore Software Engineers are at the forefront of real-time technology that’s revolutionizing how companies run their businesses every day. With release cycles throughout the year, our engineers are accustomed to moving quickly in a rapid production environment. To do this successfully, we work collaboratively and creatively across teams to maximize our opportunity for impact. We also believe it’s important to celebrate our wins together, whether it be at a local spot or getting out of the city for some exploring.

As a Software Engineer, you will be empowered to own your projects end-to-end and be an active contributor throughout the product life cycle. To expedite your growth path, you will partner with engineers who deeply care about your success and will lend their expertise to your professional development. Our engineers are not just technical partners, but are also business partners who are exposed to all areas of the business, working with teams such as product, marketing, and sales.

Role and Responsibilities

Our Software Engineers work on small, collaborative teams to help drive our company forward.  Whether you’re building new features using cutting-edge technologies like WASM, improving the fault tolerance a SingleStore cluster, accelerating the performance of SQL queries with techniques like SIMD and LLVM codeGen, or writing search and costing modules for the query optimizer, our University Graduates are responsible for brand new and existing projects that are deployed into production with each release. Your work will include everything from writing to testing software, and you’ll gain a significant understanding of both the product and the business.

Required Skills and Experience

B.S. Degree in Computer Science, Electrical Engineering, Computer Engineering, or related discipline. Deep understanding of C.S. fundamentals, in particular operating systems, concurrency, multithreading, and server architectures. Strong programming skills with C++ or C. Passionate about building highly reliable software. Firm grasp of algorithms and data structures

SingleStore delivers the cloud-native database with the speed and scale to power the world’s data-intensive applications. With a distributed SQL database that introduces simplicity to your data architecture by unifying transactions and analytics, SingleStore empowers digital leaders to deliver exceptional, real-time data experiences to their customers. SingleStore is venture-backed and headquartered in San Francisco with offices in Sunnyvale, Raleigh, Seattle, Boston, London, Lisbon, Bangalore, Dublin, and Kyiv. 

Consistent with our commitment to diversity & inclusion, we value individuals with the ability to work on diverse teams and with a diverse range of people.

To all recruitment agencies: SingleStore does not accept agency resumes. Please do not forward resumes to SingleStore employees. SingleStore is not responsible for any fees related to unsolicited resumes and will not pay fees to any third-party agency or company that does not have a signed agreement with the Company.

Position Overview

We are seeking a highly skilled DevOps/Cloud Platform Engineer to join our engineering organization and help drive the next generation of our infrastructure and CICD platform capabilities. In this role, you will be an integral part of our CICD release process, responsible for designing, operating, and optimizing CICD runners and environments, maintaining cloud infrastructure, and creating internal developer platforms that support fast, reliable, and secure software delivery. You will work closely with engineering, QA, data, and product teams to ensure our systems are scalable, resilient, and easy to use.

The ideal candidate brings a strong blend of CICD knowledge, cloud infrastructure expertise, DevOps mindset, and hands-on development skills. You will automate wherever possible, use Infrastructure as Code to maintain consistency, and leverage modern DevOps tooling, including AI-assisted automation to enhance operational efficiency and developer productivity.

This is an operations role for someone who thrives in solving complex technical problems, improving processes, and building platforms that accelerate engineering velocity.

What you'll do:

• Develop, enhance, and maintain CI/CD self-hosted infrastructure using modern DevOps tooling (GitHub Actions Runners stack, ArgoCD, FluxCD etc.).

• Automate infrastructure provisioning, configuration management, monitoring, and operational workflows using IaC and scripting languages.

• Own the deployment, maintenance, and lifecycle management of systems supporting engineering (Kubernetes clusters, container registries, artifact systems, and internal developer platforms) leveraging deep expertise in Kubernetes, container runtimes, and the broader cloud-native ecosystem (Helm, Kustomize, etc.).

• Troubleshoot complex infrastructure and application issues, driving root-cause analysis and developing long-term remediation solutions

• Design, build, and maintain cloud infrastructure across major cloud providers (AWS, GCP, Azure), and develop/support deployments of applications, services, and monitoring with a strong focus on scalability, reliability, and cost optimization.

• Develop internal tooling and automation using Terraform, Python, Go, or similar languages to streamline operational tasks and improve developer productivity.

• Implement and manage security best practices across cloud environments, including identity management, secrets handling, audit logging, and network controls.

• Leverage AI/ML tools to automate repetitive DevOps tasks, operational workflows.

Your Experience:

• 4-8+ years of experience in DevOps, Cloud Engineering, Systems Administration, or similar infrastructure-focused roles.

• Familiar with GIT and comfortable with at least one systems programming language (C/C++, golang) and one scripting language (python, bash).

• Proficiency with Infrastructure as Code (Terraform, Pulumi, or CloudFormation) and configuration management (Ansible, Chef, or SaltStack).

• Working knowledge of at least one of observability stacks (Prometheus, Grafana, ELK/OpenSearch, Datadog, etc.) and operational troubleshooting.

• Strong hands on experience with Kubernetes management in production environments

• Experience designing, developing, and/or troubleshooting distributed systems.

• Comfort with shells on *nix family systems.

• B.S. degree or equivalent experience in Engineering, Computer Science or a related field.

Preferred Qualifications:

• Hands-on experience building CI/CD pipelines from a user perspective (GitHub Workflows, GitLab pipelines, etc)

• Certifications from cloud service providers (AWS DevOps, GCP Devops Eng, etc)

• Natural curiosity or drive to learn about new or adjacent technologies.

• Experience applying AI/ML tools (GitHub Copilot, cloud AI services, LLM-based automations, anomaly detection tooling, etc.) to streamline DevOps and infrastructure workflows is a strong plus.

• Hands-on experience implementing AI-enhanced threat detection systems.

About us:

SingleStore delivers the cloud-native database with the speed and scale to power the world’s data-intensive applications. With a distributed SQL database that introduces simplicity to your data architecture by unifying transactions and analytics, SingleStore empowers digital leaders to deliver exceptional, real-time data experiences to their customers. SingleStore is venture-backed and headquartered in San Francisco with offices in Sunnyvale, Raleigh, Seattle, Boston, London, Lisbon, Bangalore, Dublin and Kyiv.

Consistent with our commitment to diversity & inclusion, we value individuals with the ability to work on diverse teams and with a diverse range of people.

To all recruitment agencies: SingleStore does not accept agency resumes. Please do not forward resumes to SingleStore employees. SingleStore is not responsible for any fees related to unsolicited resumes and will not pay fees to any third-party agency or company that does not have a signed agreement with the Company.

SingleStore values individuals for their unique skills and experiences, and we’re proud to offer roles in a variety of locations across the United States. Salary is based on permissible, non-discriminatory factors such as skills, experience, and geographic location, and is just one part of our total compensation and benefits package. 

For candidates residing in California, please see our California Recruitment Privacy Notice. For candidates residing in the EEA, UK, and Switzerland, please see our EEA, UK, and Swiss Recruitment Privacy Notice.

Required:

• 3+ in Windows desktop application development using Windows App SDK, WinUI (or similar), C#, XAML — and ideally additional experience with native Windows code (C++, Win32/WinRT/COM).
• Deep understanding of Windows application architecture, including interop between managed code (.NET) and native code.
• Proven track record of designing, building, and shipping production-quality desktop applications, with an emphasis on reliability, performance, scalability, and maintainability.
• Strong experience with accessibility APIs on Windows (e.g. Microsoft UI Automation or similar), and a dedication to building accessible and inclusive software.
• Excellent software engineering fundamentals: OOP, design patterns, data structures, algorithms, memory management, multi-threading or asynchronous programming (where relevant).
• Experience leading technical design, mentoring other engineers, conducting code reviews, and making architecture-level decisions.
• Strong communication skills; ability to articulate tradeoffs, collaborate with cross-functional teams, and drive consensus.
• A user-centric mindset: focus on building polished, intuitive, and accessible experiences for end users.

Preferred / Bonus:

• Experience with writing automated tests for UI — unit tests, integration tests, UI automation tests; familiarity with relevant testing frameworks.
• Experience with performance optimization for desktop apps (memory usage, startup time, rendering performance, high-DPI support, responsiveness under load).
• Experience with localization/globalization, right-to-left UI support, internationalization, accessibility for multiple regions.
• Familiarity with telemetry, analytics, crash reporting, logging, and error monitoring in desktop applications.
• Previous experience in shaping CI/CD workflows, release pipelines, and deployment strategies for desktop applications.
• Demonstrated ability to take ownership of feature areas or modules and drive them long-term, including maintenance, refactoring, and technical debt management.

What we offer

• A high-impact role: you will define architecture, shape the future of our Windows product, and directly influence what millions of users see and experience.
• A collaborative, flat-structure engineering culture — you are not just a coder, but a builder and a decision-maker.
• Opportunities to lead — mentor others, steer technical direction, and grow into broader technical leadership (e.g. Tech Lead, Architect).
• Flexibility, autonomy, and responsibility: you define how to solve problems, own features end-to-end, and contribute to long-term product vision.
• A purpose-driven mission: building software that’s reliable, accessible, and user-centered — making a real difference for people.                  

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.

Software Engineer, University Graduate

at SingleStore

Lisbon, Portugal

Position Overview

SingleStore Software Engineers are at the forefront of real-time technology that’s revolutionizing how companies run their businesses every day. With release cycles throughout the year, our engineers are accustomed to moving quickly in a rapid production environment. To do this successfully, we work collaboratively and creatively across teams to maximize our opportunity for impact. We also believe it’s important to celebrate our wins together, whether it be at a local spot or getting out of the city for some exploring.

As a Software Engineer, you will be empowered to own your projects end-to-end and be an active contributor throughout the product life cycle. To expedite your growth path, you will partner with engineers who deeply care about your success and will lend their expertise to your professional development. Our engineers are not just technical partners, but are also business partners who are exposed to all areas of the business, working with teams such as product, marketing, and sales.

Role and Responsibilities

Our Software Engineers work on small, collaborative teams to help drive our company forward.  Whether you’re building new features using cutting-edge technologies like WASM, improving the fault tolerance a SingleStore cluster, accelerating the performance of SQL queries with techniques like SIMD and LLVM codeGen, or writing search and costing modules for the query optimizer, our University Graduates are responsible for brand new and existing projects that are deployed into production with each release. Your work will include everything from writing to testing software, and you’ll gain a significant understanding of both the product and the business.

Required Skills and Experience

B.S. Degree in Computer Science, Electrical Engineering, Computer Engineering, or related discipline. Deep understanding of C.S. fundamentals, in particular operating systems, concurrency, multithreading, and server architectures. Strong programming skills with C++ or C. Passionate about building highly reliable software. Firm grasp of algorithms and data structures

SingleStore delivers the cloud-native database with the speed and scale to power the world’s data-intensive applications. With a distributed SQL database that introduces simplicity to your data architecture by unifying transactions and analytics, SingleStore empowers digital leaders to deliver exceptional, real-time data experiences to their customers. SingleStore is venture-backed and headquartered in San Francisco with offices in Sunnyvale, Raleigh, Seattle, Boston, London, Lisbon, Bangalore, Dublin, and Kyiv. 

Consistent with our commitment to diversity & inclusion, we value individuals with the ability to work on diverse teams and with a diverse range of people.

To all recruitment agencies: SingleStore does not accept agency resumes. Please do not forward resumes to SingleStore employees. SingleStore is not responsible for any fees related to unsolicited resumes and will not pay fees to any third-party agency or company that does not have a signed agreement with the Company.

Software Engineer Intern, Engine (Summer 2026)

at SingleStore

Lisbon, Portugal

Position Overview

As a Software Engineer, Intern, you'll have the opportunity to spend 12 weeks working on one (or more) of the engineering teams at SingleStore. As an intern, you will be at the forefront of real-time technology that’s revolutionizing how companies run their businesses every day. With release cycles throughout the year, our engineers are accustomed to moving quickly in a rapid production environment. To do this successfully, we work collaboratively and creatively across teams to maximize our opportunity for impact. We also believe it’s important to celebrate our wins together whether it be at a local spot or getting out of the city for some exploring.

As a Software Engineer Intern, you will be empowered to own your projects end-to-end and be an active contributor throughout the product life cycle. To expedite your growth path, you will partner with engineers who deeply care about your success and will lend their expertise to your professional development. Our engineers are not just technical partners/mentors, but are also business partners who are exposed to all areas of the business, working with teams such as product, marketing, and sales.

Role and Responsibilities

Our Software Engineers work on small, collaborative teams to help drive our company forward.  Whether you’re exploring cutting-edge technologies like LLM and vector index, improving the fault tolerance of a SingleStore cluster, accelerating the performance of SQL queries with techniques like SIMD and LLVM codeGen, or writing search and costing modules for the query optimizer, our interns are responsible for projects that are deployed into production in the next release after your internship. Your work will include everything from writing to testing software, and you’ll gain a significant understanding of both the product and the business.

Required Skills and Experience

Enrolled in a B.S. Degree in Computer Science, Computer Engineering, Electrical Engineering, or related disciplineDeep understanding of C.S. fundamentalsStrong programming skills with C++ or CPassionate about building highly reliable softwareFirm grasp of algorithms and data structures

Preferred skill and experience

Understanding of core C.S. fundamentals, in particular operating systems, distributed systems, concurrency, multithreading, and server architectures

SingleStore delivers the cloud-native database with the speed and scale to power the world’s data-intensive applications. With a distributed SQL database that introduces simplicity to your data architecture by unifying transactions and analytics, SingleStore empowers digital leaders to deliver exceptional, real-time data experiences to their customers. SingleStore is venture-backed and headquartered in San Francisco with offices in Sunnyvale, Seattle, Raleigh, Boston, Lisbon, London, Bangalore, Dublin, and Kyiv. 

Consistent with our commitment to diversity & inclusion, we value individuals with the ability to work on diverse teams and with a diverse range of people.

Sponsorship is available for this position and other select roles

Please note that SingleStore’s COVID-19 vaccination policy requires that team members in the United States be fully vaccinated, including a booster shot with one of the United States FDA-approved vaccine options to meet in person for SingleStore business or to work from one of our U.S. office locations. [It is expected that this will be a requirement for this role]. If an exemption and/or accommodation to our vaccination policy is requested, a member of the Human Resources department will be available to begin the interactive accommodation process. 

To all recruitment agencies: SingleStore does not accept agency resumes. Please do not forward resumes to SingleStore employees. SingleStore is not responsible for any fees related to unsolicited resumes and will not pay fees to any third-party agency or company that does not have a signed agreement with the Company.

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

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.

The role is open to candidates preferably based in Lisbon, Portugal.

About the role

As an AI Engineer at Fluxon, you’ll take the lead in designing, building and deploying AI-powered applications for our clients.

You'll be responsible for:

• System Architecture: Design and implement end-to-end AI systems and their parts, including data ingestion, preprocessing, model inference, and output structuring
• Generative AI Development: Build and optimize RAG (Retrieval-Augmented Generation) systems and Agentic workflows using frameworks like LangChain, LangGraph, ADK (Agent Development Kit), Genkit
• Production Engineering: Deploy models to production environments (AWS/GCP/Azure) using Docker and Kubernetes, ensuring high availability and scalability
• Evaluation & Monitoring: Implement feedback loops to evaluate model performance (accuracy, hallucinations, relevance) and set up monitoring for drift in production
• Collaboration: Work closely with other engineers to integrate AI endpoints into the core product and with product managers to define AI capabilities
• Model Optimization: Fine-tune open-source models (e.g., Llama, Mistral) for specific domain tasks and optimize them for latency and cost

You'll work with technologies including:

Languages

• Python (Preferred)
• Java / C++ / Scala / R / JavaScript   

AI / ML

• LangChain
• LangGraph
• Google ADK
• Genkit
• OpenAI API
• LLM - Large Language Model
• Vertex AI

Cloud & Infrastructure

• Platforms: Google Cloud Platform (GCP) or Amazon Web Services (AWS)
• Storage: Google Cloud Storage (GCS) or AWS S3
• Orchestration: Temporal, Kubernetes

Data Stores

• PostgreSQL
• Firestore
• MongoDB

Monitoring & Observability

• GCP Cloud Monitoring Suite

Qualifications

• 5+ years of industry experience in software engineering roles
• Strong proficiency in Python or any preferred AI programming language such as Scala, Javascript and Java
• Strong understanding of Transformer architectures, embeddings, and vector similarity search
• Experience integrating with LLM provider APIs (OpenAI, Anthropic, Google Vertex AI)
• Hands-on experience with agent workflows like LangChain, LangGraph
• Experience with Vector Databases and traditional SQL / NoSQL databases
• Familiarity with cloud platforms, preferably GCP or AWS
• Understanding of patterns like RAG (Retrieval-Augmented Generation), few-shot prompting, and Fine-Tuning
• Solid understanding of software development practices including version control (Git) and CI/CD

Nice to have:

• Experience with Google Cloud Platform (GCP) services, specifically Vertex AI, Firestore, and Cloud Functions
• Knowledge of prompt engineering techniques (Chain-of-Thought, ReAct, Tree of Thoughts)
• Experience building "Agentic" workflows where AI can execute tools or API calls autonomously

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