Senior Software Development Engineer in Test (SDET)

Senior Software Development Engineer in Test (SDET) — Enablement PlatformAbout SwapAt Swap, we are revolutionizing agentic commerce through our cutting-edge AI-native platform that seamlessly integrates backend operations with an innovative storefront experience. We empower brands to sell anything, anywhere by centralizing global operations and providing int…

Why Join Nebius?Nebius is at the forefront of revolutionizing cloud computing to empower the global AI economy. We provide innovative tools and resources that enable our clients to tackle real-world problems and revolutionize industries without incurring exorbitant infrastructure costs or the necessity of establishing large in-house AI/ML teams. Our workforce is comprised of leading experts in AI cloud infrastructure, working closely with some of the most seasoned and innovative leaders and engineers in the sector.Workplace CultureBased in Amsterdam and publicly traded on Nasdaq, Nebius boasts a global presence with R&D centers across Europe, North America, and Israel. Our diverse team of over 1400 professionals includes more than 400 highly skilled engineers with extensive expertise in hardware and software engineering, along with a dedicated AI R&D team.The OpportunityNebius is seeking a talented Senior Software Engineer to become an integral part of our Hardware Infrastructure Observability team, with the option to work from our Amsterdam office. We specialize in developing and maintaining low-level monitoring systems for servers and data center engineering to ensure reliability at scale. Our responsibilities include designing and managing maintenance systems that facilitate safe, predictable fleet-wide changes while sustaining infrastructure health.

About ClickHouseClickHouse is a leading innovator in the cloud computing space, proudly featured on the 2025 Forbes Cloud 100 list. With over 3,000 satisfied customers and an impressive annual recurring revenue growth exceeding 250% year-on-year, we excel in real-time analytics, data warehousing, observability, and AI-driven workloads.Our remarkable growth trajectory was recently affirmed by a $400 million Series D funding round. In the last quarter alone, renowned companies such as Capital One, Lovable, Decagon, Polymarket, and Airwallex have adopted or expanded their use of our platform, joining industry giants like Meta, Cursor, Sony, and Tesla.Join us in our mission to redefine how organizations leverage data!The Connectors team is crucial in linking ClickHouse with the broader data ecosystem. We develop and maintain the essential connectors that make ClickHouse accessible to millions of developers and data practitioners globally. Our work ranges from low-level database integrations to high-level data visualization plugins, ensuring smooth integration with tools our users are already familiar with.Our responsibilities include overseeing the official data connectors (Kafka, dbt, Spark, Flink, Beam, Fivetran) and integrations with leading visualization platforms such as Grafana, Tableau, Power BI, and Metabase.Your RoleAs a Senior Software Engineer focused on JVM-based frameworks, you will be a key contributor, taking ownership of and maintaining vital aspects of ClickHouse's data engineering ecosystem. This position lies at the intersection of high-performance database engineering and developer experience, where you will create tools that empower Data Engineers to exploit ClickHouse's remarkable speed and scalability.Your responsibilities will encompass the entire lifecycle of data framework integrations—from the core database driver that handles billions of records per second to SDKs and connectors that integrate ClickHouse seamlessly into JVM-based applications. This role goes beyond coding; you will be laying the groundwork that thousands of Data Engineers depend on for their most critical data workloads.Your contributions will have a direct impact on how companies manage massive datasets, facilitating real-time analytics platforms that ingest millions of events per second and observability systems that monitor global infrastructure. You will work closely with the open-source community, internal teams, and enterprise users to ensure our JVM integrations set the benchmark for performance, reliability, and user satisfaction.

At Databricks, we are dedicated to empowering data teams to tackle some of the most pressing challenges in the world — from pioneering the next generation of transportation solutions to fast-tracking medical advancements. Our mission is fulfilled through the development and operation of a world-class data and AI infrastructure platform, enabling our customers to leverage deep data insights to transform their businesses.Founded by engineers and driven by a strong customer focus, we enthusiastically embrace every opportunity to confront technical challenges, whether it’s innovating next-generation UI/UX for data interfacing or scaling our infrastructure across millions of virtual machines. Our journey has just begun.Our engineering teams are tasked with creating highly technical products that address significant real-world needs. We manage and operate one of the most extensive software platforms, consisting of millions of virtual machines, generating terabytes of logs and processing exabytes of data daily. At our scale, we frequently encounter cloud hardware, network, and operating system faults, and our software must adeptly shield our customers from these issues.Unity Catalog serves as our platform's native unified and open governance solution for data and AI, breaking down silos, simplifying governance, and accelerating insights at scale. We are seeking a Senior Staff Software Engineer to lead the technical efforts for Unity Catalog Runtime Enforcement. This role involves building and fortifying the runtime enforcement layer for Unity Catalog, ensuring secure, consistent authorization, and data access across Databricks compute, engines, and cloud environments. This initiative aims to minimize incidents and streamline customer decisions by harmonizing enforcement semantics.

About Software Improvement Group Software Improvement Group (SIG) helps organizations strengthen their software quality through detailed source code analysis and hands-on consultancy. Our Sigrid platform supports software portfolio governance, giving clients more control over their technology landscape. With guidance from experienced consultants, clients can turn software into a reliable asset instead of a risk factor. Role Overview: AI Research and Development Engineer Based in Amsterdam, this role sits within the CTO Office. The AI R&D Engineer will focus on designing and prototyping AI-driven solutions for software engineering challenges. The work blends experimentation, engineering, and applied research. What You Will Do Develop rapid prototypes and applications powered by AI Run internal experiments using large language models (LLMs), prompt engineering, and AI coding assistants Analyze data and contribute to machine learning projects, especially those related to software quality and development practices This position suits someone who enjoys quickly building and testing new ideas, especially in a team that values experimentation and innovation. Why Join SIG? Work in a small, innovation-focused team with room to experiment Influence SIG’s AI strategy and future product direction See your work shape client-facing solutions and the evolution of our offerings

Join the Software Improvement Group (SIG) as a Master's Research Intern and be at the forefront of advancing software quality assessment methodologies. This internship focuses on estimating the risk and value of software qualities, providing a unique opportunity to investigate the critical factors that influence software engineering success.Research Problem:In the realm of software engineering, three main elements govern decision-making: technology, people/process, and economics. As software quality increasingly dictates the success or failure of systems, it is essential for development organizations to grasp the potential risks and benefits, alongside the costs associated with enhancing software quality. Unfortunately, an integrated methodology to address various software qualities is currently lacking.At SIG, we utilize the Cost Estimation Model (Nuhogro 2011) to evaluate the effect of maintainability on development efforts, which serves as a vital tool for reporting and decision-making. However, we are in need of similar assessments for other software quality characteristics.The FAIR methodology (FAIR, Open-FAIR, Freund 2015) offers a structured approach for quantifying risks, particularly in the context of cybersecurity. This methodology combines multiple risk factors to assess overall risk and provides outcome ranges.Research Question:This research aims to explore whether the FAIR approach, or a similar alternative, can be adapted for various quality models (such as maintainability, security, architecture quality, etc.), resulting in a comprehensive cost estimation model for multiple software qualities. Furthermore, the research will investigate if risk models for these qualities can converge into a unified software economics model.If this is not feasible, can the FAIR methodology be applied to software security, leveraging results from SIG’s Sigrid platform?Tentative Approach:The research is expected to unfold in several stages, although not all stages need to be completed within a single thesis project.

airapps seeks an iOS Engineer in Amsterdam to help create mobile apps that offer strong user experiences and keep users engaged. The team values high standards for usability and performance, aiming to deliver quality applications that stand out in the market. Key responsibilities Develop and maintain iOS applications as part of the airapps product suite Collaborate with colleagues to design features that attract and retain users Share creative ideas to enhance app functionality and increase user satisfaction Location This role is based in Amsterdam.

Join Studytube as a Backend Engineer in Amsterdam and play a pivotal role in empowering individuals to shape their futures! We are in search of a talented backend engineer to develop and enhance integrations for our clients, working collaboratively with the Integrations team based in Amsterdam.Key ResponsibilitiesAs a Backend Engineer, you will serve as a vital link between Studytube and our clients, facilitating integrations between our platform and their HR systems. A recent challenge involved creating a new password flow for clients without email access, such as blue-collar workers, showcasing the innovative solutions you'll bring to the table. Your creativity is encouraged as you tackle unique integration challenges based on each client's requirements.In this role, your primary responsibilities will include:Developing integrations with external systems.Managing large volumes of historical data to onboard clients effectively.Designing, developing, and maintaining integrations focused on identity management.Continuously enhancing the existing platform with a focus on quality and efficiency.Collaborating closely with fellow engineers, product teams, and customer-facing staff.

Who We Are and How We OperateAs a Technical Software Consultant at Software Improvement Group, you will engage with technology leaders to enhance software quality, mitigate risks, and control costs associated with critical business software systems.This is achieved through in-depth source code assessments and established risk and cost analysis methodologies, all supported by our proprietary analytical tools. You will manage multiple concurrent projects, from short-term bespoke initiatives (lasting 6-8 weeks) to long-term monitoring projects (spanning several years), assisting clients in gaining continuous insights and structural improvements in their code quality. Primarily based in our Amsterdam office (with flexible remote work options), you will collaborate in small project teams led by a senior or lead consultant. Our projects span various sectors, including government, finance, energy, telecommunications, and other commercial areas. Regardless of the sector, you will have the opportunity to engage with, advise, and collaborate with senior leaders from prominent Dutch and international enterprises.Your RoleAs a key member of the Software Consultancy team, you will analyze systems as part of our project assessments. Your role is to rapidly gain a deep understanding of the system and validate your findings and hypotheses with the client's development teams.Your typical responsibilities include:Conducting technical interviews with lead architects or lead developers to comprehensively understand the code, documentation, and system architecture;Analyzing project scope systems and gathering and prioritizing findings that may pose risks within the client’s business context and goals;Presenting and validating your analysis results with lead architects or lead developers;Formulating recommendations for the client, alongside your project team, supported by the findings you have collected.In your initial months, you will receive training on SIG's toolset and methodologies. Additionally, we will support your personal growth through coaching from colleagues on your projects, internal and external training, regular development discussions with your manager, and the systematic integration of feedback and evaluations into our projects.Throughout your client projects, you will encounter a wide range of programming technologies for analysis, from legacy technologies to the latest web frameworks.

At JetBrains, we are driven by our passion for coding. Since our inception in 2000, we have been dedicated to developing the most powerful and effective tools for developers worldwide. Our innovative solutions automate routine checks and corrections, accelerating the production process and empowering developers to innovate and create.Currently, we are in the process of building advanced services and intelligent tools designed to provide both AI coding agents and end users with profound insights into codebases. Our existing code retrieval service has already demonstrated significant enhancements in agent performance and task execution. We are eager to advance this further by extracting more comprehensive insights beyond mere snippets, across numerous repositories.We seek a talented AI Engineer to design and implement intelligent tools from the ground up, ensuring that coding with agents becomes smarter, quicker, and more dependable.

Join us as a seasoned software developer to contribute to the evolution of the Kotlin ecosystem.Your Role:Develop and sustain essential libraries for Kotlin core primitives utilized by a vast community of developers.Deepen your expertise in specialized areas of computer science and software engineering.Collaborate within a design committee to shape the future of the Kotlin API.Engage in the development of standard Kotlin tools, specifications, and language features.Preferred Qualifications:Experience with JVM development, including insights into the Java standard library's implementation.Strong grasp of the domains you've previously worked in.Capability to articulate design documents for intricate systems, detailing the rationale behind each trade-off and technical decision.Background in performance engineering or API design.If you find joy in deciphering Unicode standards, examining how various languages convert strings to bytes, and tackling complex timezone adjustments in Kotlin, our team is the perfect fit for you.

Seeking a new adventure? You’ve found the perfect opportunity.Join our dynamic Amsterdam-based team, comprised of over 90 talented individuals from more than 25 nationalities! We are a diverse group of "Citizens of The World" who share a passion for travel and possess a wealth of skills. Our common goal? To revolutionize the way people explore the globe.We are achieving this with our innovative travel app designed to plan, track, and relive journeys in an intuitive and beautiful manner.With over 19 million users already on board, we believe this is just the beginning. Our ambitious plans for the future call for more talented and enthusiastic individuals to join us on this exciting journey.Curious to learn more about us? Discover more here.Your mission: Lead Backend Engineer at PolarstepsIf you haven't yet explored our app, take a moment to do so; you'll quickly realize how much we prioritize a seamless, high-quality user experience for every traveler. Our app has received impressive ratings of 4.8 and 4.7 on app stores and has been featured multiple times. Moreover, Google has created this fantastic video about us, and we've been mentioned in two of Apple’s WWDC keynote addresses!While we take pride in our remarkable past, we are even more excited about the future. The impact you can make from your very first day is significant, with every contribution affecting over 19 million users. We truly believe in providing our team members with the autonomy needed to perfect their craft while fostering a practical mindset to prevent over- or under-engineering.The travel industry is experiencing enthusiastic and accelerated growth, bringing both opportunities and challenges, particularly within the intricate, multi-layered travel domain. If you thrive on considering user experience, performance, and scalability, along with the inherent challenges of feature development, you’re in for an exhilarating experience with us.Your daily adventuresHere’s what your day-to-day will look like at Polarsteps.You will:Lead the platform team of Senior Backend and DevOps Engineers, establishing clear technical direction and expectations while maintaining close engagement with the code to identify potential issues.

Join our dynamic team at Adyen as an Engineering Manager for the Protect Core division. In this pivotal role, you will lead a talented group of engineers, driving innovative solutions that enhance our fraud prevention capabilities and ensure a seamless experience for our clients. Your leadership will empower your team to excel in a fast-paced environment, where collaboration and creativity are essential to success.

Join Adyen as an Engineering Lead and play a pivotal role in shaping our engineering teams and processes. You will be responsible for driving innovation, mentoring team members, and ensuring the delivery of high-quality software solutions. Your expertise will help us enhance our products and maintain our commitment to excellence in payment solutions.

Role overview airapps seeks a Software Architect based in Amsterdam to help shape and build software products. The focus is on designing and implementing solutions that deliver both strong performance and scalability. Collaboration with teams from different disciplines is an essential part of the work. What you will do Design and implement software architecture for both new and existing products Work closely with engineers, product managers, and other stakeholders to enhance product functionality Create solutions that support high performance and can scale as the business expands Who thrives in this role This position fits those who enjoy tackling complex problems and collaborating with others to achieve strong results. People who like to share ideas and adapt quickly will feel comfortable here.

Are you a passionate engineer who enjoys both establishing frameworks and engaging directly in development? As a Senior Backend Engineer at Funda, you will design, build, and scale systems that assist millions of potential home buyers and real estate professionals daily. Your role bridges technology, architecture, and product development, allowing your voice to influence our direction.Your Role at a GlanceIn this position, you will be a key player in Funda’s backend domain. Your responsibilities include designing scalable systems, enhancing the technical foundations of our platform, and developing features that make a direct difference to millions of users.You will be part of a dedicated product team while collaborating across various teams: uniting people, ideas, and projects to advance our technical capabilities. Utilizing cutting-edge technologies such as .NET 8, Kubernetes, Azure, event-driven architecture, and Terraform, you will help keep our systems intelligent, scalable, and prepared for the future.This role uniquely combines deep technical expertise, ownership, and an influential voice in our development processes.Your Responsibilities IncludeGuide your team in alignment with our lighthouse architecture and contribute to its ongoing enhancement.Design and optimize critical systems demanding high performance and reliability.Tackle complex challenges related to scalability, data streams, and systems integration.Collaborate with product managers and designers to ensure technical choices align with the product vision.Mentor and share knowledge with mid and junior engineers, fostering Funda's culture of learning.Partner with other senior and staff engineers to evolve Funda’s technical strategy.Explore our Engineering Blog: Learn how we empower our development team with modular pipelines

About UsTebi is revolutionizing the hospitality industry with our innovative Connected Restaurant Management System, designed to streamline operations in restaurants, cafés, bars, and coffee shops. Our all-in-one platform integrates sales, reservations, kitchen preparation, payments, and insightful analytics to ensure seamless service.Founded by Arnout Schuijff, co-founder of Adyen, and backed by €50 million in investment from Index Ventures and CapitalG, Tebi prioritizes the needs of hospitality professionals. Our solution is already embraced by thousands of establishments across the Netherlands and the UK, with plans for expansion into additional markets.About the RoleWe are seeking a highly skilled Senior Application Engineer to enhance the core experience for restaurant teams. EU citizenship is required, and we welcome candidates relocating to Amsterdam with a comprehensive relocation package.In this role, you will spearhead the development of cross-platform features, collaborate closely with design and product teams, and contribute to backend components when necessary. A strong product mindset and a passion for improving developer experience are essential as you work to build superior software rapidly.This position is perfect for someone with a track record of successfully launching real-world applications and eager to make impactful technical decisions within a dynamic team environment.

Monumental is revolutionizing the construction industry by integrating advanced robotics and sophisticated software solutions. Our mission is to redefine construction as a software-driven process, enabling the creation of stunning, custom-designed buildings in a single day with minimal labor.As a rapidly expanding team of approximately 100 skilled engineers and technicians, we hail from esteemed organizations such as Palantir, Qualcomm, Dyson, Shopify, Tesla, Meta, and 1X. Joining us at this stage presents a rare opportunity to become an early team member in a dynamic, high-growth startup environment. From your very first day, you will collaborate with a seasoned founding team, supported by top-tier investors.Our headquarters is located near Artis Zoo in the vibrant Plantage district of Amsterdam, where we boast a beautiful office equipped with an in-house workshop and a robotic testing facility. We emphasize the importance of teamwork, as we believe in collaborating together in the office five days a week. Discover more about why working in construction is fulfilling here, and delve into our vision and company details. You might also find this video by Andreas Klinger showcasing our office environment insightful.About You and This RoleIn our view, effective engineering is best achieved through direct engagement with users. For us, that means immersing yourself in the real-world environment of our robots on construction sites.Enhancing robot performance and behavior from a desk is challenging; the most successful approach is to be present with the robot and capable of addressing issues independently rather than relying on others. This unique role sits at the intersection of engineering, product development, and operations, and we believe it will significantly influence our business's trajectory. However, this role may not suit everyone, as you will be required to wear hard hats and steel-toed boots regularly. You will...

Monumental is revolutionizing on-site construction through the integration of advanced robotics and cutting-edge software. Our goal is to redefine construction as primarily software-driven, paving the way for the creation of stunning, custom buildings in just one day with minimal labor involved.As a rapidly expanding team of around 100 engineers and technicians, we come from prestigious companies such as Palantir, Qualcomm, Dyson, Shopify, Tesla, and Meta. Joining us now means you will be an early employee in a high-growth startup environment filled with ambition. From your first day, you will collaborate with a seasoned founding team supported by top-tier investors.Our headquarters is located near the Artis Zoo in the vibrant Plantage area, right in the heart of Amsterdam. We offer a beautiful office space equipped with an in-house workshop and a robotics testing facility. We are not a hybrid or remote-first company; we value face-to-face collaboration five days a week in the office. To understand why we believe in dedicating your time to construction, check out this link, and learn about our vision and company details. You may also find this video by Andreas Klinger showcasing our office environment interesting.About You and This RoleThe traditional startup mantra for engineers is to spend time with your users. Our take on this is to immerse yourself with our robots in their natural habitat—the construction site.Improving a robot's behavior and performance is challenging when you're confined to an office setting, tweaking kinematics or planning new features that must operate effectively within the dynamic environment of a construction site. Our experience shows that the most effective way to enhance robots is to be present with them, enabling you to troubleshoot and make adjustments directly rather than relying on another engineer.This role sits at the intersection of engineering, product development, and operations, and we view it as critical to our business's success. It is not a role for everyone; you will be required to wear hard hats and safety boots for most of your workdays.

Role overview airapps is seeking a Mobile Software Architect based in Amsterdam. This position centers on designing and building mobile applications aimed at improving user experience. The architect will play a key role in setting development standards and ensuring that mobile products are both scalable and efficient. What you will do Design and build mobile applications with a focus on user experience Establish and guide development practices for the mobile team Contribute to delivering mobile products that scale and perform efficiently Location This role is based in Amsterdam.