Senior Fullstack Engineer at Scaler | Amsterdam

Join our innovative team at Onramper as we revolutionize fiat-to-crypto transactions!We are a dynamic scale-up based in the Netherlands, dedicated to facilitating access to web3 by connecting fiat currencies (Euros, Dollars, and more) with cryptocurrencies.Our cutting-edge embeddable widget and API empower crypto-native wallets, enabling users to purchase cryptocurrencies globally through over 130 payment methods.Our technology is trusted by industry leaders such as Coinbase, Exodus, and Opera browser, and utilized by hundreds of platforms within their fiat onramping solutions. We partner with top fiat-to-crypto payment gateways, streamlining the process so users can easily buy crypto within their platforms. This intersection is crucial for the future of web3 and the metaverse.We are on the lookout for a Fullstack Engineer who possesses a passion for developing modern web platforms and a drive for personal growth and innovation. In this role, you will take the lead on some of the core components of our platform as part of a collaborative, cross-functional team.

Dataiku is the leading platform for AI success, providing an enterprise orchestration layer for developing, deploying, and governing AI. Within a unified environment, teams can craft and manage analytics, machine learning, and AI agents with the transparency, collaboration, and governance that enterprises demand. Dataiku sits above various data platforms, cloud infrastructures, and AI services, seamlessly connecting the entire enterprise AI stack—enabling organizations to implement AI across diverse environments with centralized oversight.The world's foremost companies depend on Dataiku to operationalize AI, transforming it into a genuine business performance engine that delivers quantifiable value. Explore more about us through the Dataiku blog, LinkedIn, X, and YouTube.Why Join the Engineering Team at Dataiku?At Dataiku, our platform—whether deployed on-premise, in the cloud, or as SaaS—integrates a myriad of data science technologies, reflecting our unwavering commitment to quality and innovation. We harness the best data and AI technologies, selecting tools that genuinely enhance our product. From cutting-edge LLMs to our dedication to open-source communities, you will have the opportunity to work with an exciting array of technologies while contributing to the collective knowledge of global tech pioneers. To learn more about our engineering culture, check out this link.For additional insights into Dataiku’s offerings, explore: Key Capabilities; GitHub; and the Gallery, showcasing example projects (note that editing is limited and regularly reset).Our flagship product, Dataiku DSS (Data Science Studio), is at the forefront of our mission. Interested in seeing it in action? Watch our demo here.

P-1320 At Databricks, we are dedicated to empowering data teams to tackle the most pressing challenges facing the world today. From revolutionizing transportation to advancing medical innovations, we achieve this by developing and maintaining the leading data and AI infrastructure platform. Our customers leverage deep data insights to enhance their operations and drive growth. Founded by engineers who are obsessed with customer success, we eagerly embrace every opportunity to address technical challenges — whether it’s creating next-gen UI/UX for data interactions or scaling our services across millions of virtual machines. We’re just getting started! Unlike conventional enterprise software, we craft modern SaaS products that bring satisfaction to all stakeholders: decision-makers, administrators, and end-users alike. As a Fullstack Software Engineer, you will collaborate closely with your team and product management to deliver exceptional user experiences. Here are a few teams you might join: SQL Analytics Console: This innovative product offers Databricks customers a superior experience for Business Intelligence (BI) and executing SQL workloads directly on the data lake. Our team develops the console for SQL Analytics, enabling users to configure, manage, and monitor their SQL activities. Jobs and Workflows: This team supports all asynchronous customer workloads for Databricks, which constitutes the majority of our usage. As this demand has surged, we have reengineered the system for enhanced stability and scalability, while also introducing exciting new features for advanced workflows and customer observability. Our projects encompass a diverse skill set, including frontend, backend, and reliability engineering. Developer Ecosystem: Focused on improving the development experience, this team governs the core open-source components of our developer ecosystem, which includes the SDK, CLI, and Terraform. Neon Backend as a Service: Responsible for transforming Neon.com into more than just a database, this team provides essential services that empower developers and AI agents to build full-stack applications seamlessly on our platform (auth, data API, email, etc.). Our focus is on designing the foundational elements that will drive the next generation of AI agents and developer workflows.

Join us at Databricks, where our mission is to empower data teams to tackle some of the world's most significant challenges — from revolutionizing transportation to accelerating medical advancements. We achieve this by developing and operating the premier data and AI infrastructure platform, allowing our customers to harness profound data insights to enhance their businesses. Founded by engineers and driven by a customer-centric philosophy, we eagerly embrace every chance to overcome technical hurdles, whether that's crafting next-generation UI/UX for data interaction or scaling our services across millions of virtual machines. And this is just the beginning. Unlike conventional enterprise software, we create and build innovative SaaS products that delight all stakeholders: decision-makers, administrators, and end-users. As a Senior Fullstack Software Engineer, you will collaborate closely with your team and product management to deliver exceptional user experiences. Here are a few of the dynamic teams you could become a part of: SQL Analytics Console: This new product provides Databricks customers with a top-notch experience for Business Intelligence (BI) and executing SQL workloads directly on the data lake. Our team develops the console for SQL Analytics, where users configure, manage, and monitor their SQL usage.Jobs and Workflows: This team supports all asynchronous customer workloads for Databricks, which constitute the majority of our usage. As this demand has surged, we have restructured the system to enhance stability and scalability, while also introducing exciting new features for advanced workflows and customer observability. This team combines frontend, backend, and reliability engineering skills across various projects.Developer Ecosystem: Focused on enhancing the development experience and best practices with external tools, we oversee the core open-source components of the developer ecosystem: the SDK, CLI, and Terraform.Apps Developer Experience: This team is dedicated to making application development on Databricks seamless and enjoyable. We have built an SDK and services tailored for app developers, including our AppKit. Our Codegen sub-team develops tools that ensure apps function perfectly from the start. We are also working on an MCP server for Cursor/Claude Code and developing Skills.

Dataiku is the premier Platform for AI Success, acting as the enterprise orchestration layer for the development, deployment, and governance of AI initiatives. Our platform enables teams to design and operate analytics, machine learning, and AI agents within a cohesive environment that ensures transparency, collaboration, and control, essential for enterprises. Positioned above data platforms, cloud infrastructure, and AI services, Dataiku integrates the entire enterprise AI stack, empowering organizations to implement AI across diverse vendor environments with centralized governance.Top global companies trust Dataiku to operationalize AI, transforming it into a vital business performance engine that delivers tangible value. Discover more by visiting the Dataiku blog, LinkedIn, X, and YouTube.Why Join Engineering at Dataiku?At Dataiku, our platform can be deployed on-premise, in the cloud, or as a SaaS solution, integrating a wide array of data science technologies. Our commitment to quality and innovation is reflected in our technology stack, where we select tools that genuinely enhance our product. You will engage with a dynamic range of technologies, from the latest LLMs to our contributions to open source communities, and help expand the collective knowledge of global tech innovators. Learn more about life in Engineering at Dataiku here.Within Business Solutions, we are developing applications that leverage Dataiku's capabilities in data and AI, focusing on key enterprise use cases that require user-centric UIs and workflows. We cater to various industries, including Manufacturing, Life Sciences, and Finance, enhancing critical processes within their business and operational models. In essence, our work embodies the spirit of 'everyday AI'!Your ImpactInnovative AI-Driven Applications: Design, develop, and deploy AI-powered applications that tackle intricate business challenges.

Join Our Dynamic TeamAt Software Improvement Group (SIG), we are dedicated to enhancing software quality through in-depth source code analysis and customized strategic guidance. Our advanced software assurance platform, Sigrid, combined with our expert IT consultants, ensures that our clients fully control their software environments, turning technology into a powerful ally for success rather than a risk factor. With a robust market presence and ambitious growth plans, we are looking for passionate individuals eager to contribute to our vision.Your RoleAs a Technical Software Consultant, you will provide valuable insights to technology leaders on improving the quality, minimizing risks, and managing costs associated with their critical software systems. You will employ tool-assisted source code investigations and established risk and cost analysis methodologies while working collaboratively on projects—often lasting 6 to 8 weeks—with a dedicated team of technology specialists led by a senior or principal consultant. Your projects may span various sectors, including public, energy, telecommunications, finance, and logistics, providing you with the opportunity to engage with senior leaders in large-scale business operations.Your ContributionsAs a vital member of our consultancy team, you will:Conduct technical interviews with lead architects and developers to gain an understanding of code, documentation, and system architecture.Analyze systems and identify potential risks that could impact the client's business objectives.Present and validate findings with lead architects and developers.Collaborate with your project team to formulate recommendations supported by your analysis.You will receive comprehensive training on SIG's proprietary toolset and methodologies, enabling you to achieve your professional development goals through continuous learning and regular career progression discussions. Your work will expose you to a diverse array of development technologies—from legacy systems to modern web frameworks and business process modeling—enhanced by our analytical tools.What We OfferWe provide a stimulating work environment that encourages growth and innovation. You will have access to ongoing training and mentorship to help you excel in your career.

Join a dynamic team at Insify, a rapidly growing European insurtech, and take the lead in shaping impactful outcomes.At Insify, we are entrepreneurs at heart, dedicated to creating innovative insurance solutions tailored for other entrepreneurs. We understand the journey of building from the ground up, taking calculated risks, and embracing responsibilities that extend beyond traditional hours.Our mission is both straightforward and ambitious: to revolutionize business insurance, making it 10 times simpler, faster, and fairer for entrepreneurs and SMEs throughout Europe. We eliminate cumbersome paperwork, obscure fine print, and outdated complexities, relying instead on modern software, intelligent automation, and an unwavering commitment to customer satisfaction. As a high-growth scale-up in Europe, we have secured €43M in funding from top-tier investors and aim to lead the global market in digital insurance for entrepreneurs and SMEs, starting from the Netherlands and expanding into France and Germany.We are fundamentally a technology-driven company, crafting our own insurtech platform while leveraging data, automation, and AI to transform the entire insurance process, from underwriting to claims. Our fully digital customer portal, coupled with a strong focus on user experience, is redefining insurance as a simple, transparent, and equitable service.Our leadership comprises seasoned entrepreneurs who have successfully built and scaled businesses, instilling that same drive, urgency, and sense of ownership in everything we do.Our CultureWe are not merely creating a company; we are establishing a category leader, which demands ambition, accountability, and speed.Our culture is characterized by three core principles:High Ownership Team members take full responsibility for their challenges. If something is unclear or broken, we proactively take action to resolve it.High Pace Priorities are dynamic, and decisions are made swiftly. We prioritize momentum and learning over perfection.High Standards Results are valued more than appearances. We focus on outcomes, quality, and commitment to our work.Furthermore, you will not be working in isolation.We believe that exceptional work is the product of close collaboration. Our team engages in face-to-face interactions, challenges each other's ideas, and encourages contributions from all levels, irrespective of title or experience.

IMC relies on technology at the core of its trading operations. The software that powers millions of trading decisions daily is built in-house, helping IMC stay ahead through fast, informed choices. Role Overview Java Software Engineers at IMC in Amsterdam work across a broad landscape of applications. Teams contribute to areas such as trading algorithm development, option pricing, volatility modeling, simulation frameworks, market risk systems, trade reconciliation, and advanced data analysis and visualization tools for traders. The work extends beyond business applications to include building tools that improve the development process itself. What You Will Do Work closely with engineers, traders, researchers, and quantitative analysts in multidisciplinary teams. Take responsibility for the full product lifecycle: from gathering requirements through to production deployment. Write reliable, high-performance Java software, balancing speed, quality, and testability. Use advanced automated testing and daily deployments to deliver incremental improvements. Navigate a complex environment of diverse systems and technologies, making trade-offs among latency, throughput, simplicity, scalability, and maintainability. Develop, test, deploy, and maintain applications and automation for Trading, Risk Management, Mid-Office, and Strategy Development teams. Collaborate with internal clients to gather requirements and feedback, implementing automation solutions with modern coding practices. Location This position is based in Amsterdam, Netherlands.

About UsAt GreenFlux, we are committed to revolutionizing electric mobility with our innovative cloud-based charge point management SaaS solution. We connect Charge Point Operators (CPOs) and e-Mobility Service Providers (eMSPs) to ensure a seamless charging experience for electric vehicle drivers. As part of the DKV Mobility Group, a leading European mobility company, we are at the forefront of facilitating the transition to sustainable mobility. Join us in our mission to drive the renewable energy revolution forward.Your RoleIn this position, you will engage with an agile, self-organized team, working within a well-defined product area. Collaborating closely with your team, you will tackle unique and complex algorithms while managing vast datasets from diverse sources. This role offers the chance to contribute to all aspects of our product while fostering personal growth in a supportive environment that values quality and documentation.Technologies We Leverage:Microservices architecture with the latest versions of C#/.NET.Frontend technologies including Vue.js, Nuxt, Razor, JavaScript, and TypeScript.Cloud-native services hosted on Azure.Serverless and event-driven architectures using Azure Functions, Service Bus, and Event Grid.Cloud-native storage solutions like Azure SQL, Cosmos DB, and Redis.Data visualization tools such as Elasticsearch and Kibana.CI/CD with Azure DevOps.Infrastructure as code utilizing Bicep.Testing frameworks like Reqnroll and Playwright.

At IMC, technology is woven into the very fabric of our operations. Our proprietary software executes millions of trading decisions daily, allowing us to outpace competitors through superior speed and decision-making. Our skilled Python Development teams are responsible for creating scalable applications, tools, and automated processes to support IMC's trading and business operations across Amsterdam, London, Zug, and Mumbai. Your Key Responsibilities As a Python Software Engineer at our Amsterdam office, you will engage in developing high-performance trading systems, analytical tools, signal generation, backtesting frameworks, trade management UIs, and regulatory surveillance systems. Your role will require close collaboration with both business and technical teams, starting from requirement gathering to iterative development cycles, integrating user feedback, and implementing your enhancements. All software developed is for internal use, allowing you direct access to users who are just a few meters away, ensuring you have control over the entire development cycle. A genuine curiosity about trading and financial markets is essential, as understanding the business context is pivotal. At IMC, we empower our engineers with a high level of responsibility from the outset. You will work towards your objectives independently while being supported by a robust network of mentors and colleagues who share your enthusiasm for trading and technology. Possible tasks you may undertake include: Incorporating new signals proposed by traders into our framework. Assisting trading desks in developing essential data analytics and visualization tools. Conducting troubleshooting and performance analysis. Educating team members on how to leverage our technology within their scripts. Creating and disseminating internal Python libraries. Initiating new full-stack projects from the ground up.

Are you ready to revolutionize the mortgage industry with innovative technology?At Frits, we believe that mortgage advice can be fundamentally improved. Gone are the dusty reports and lengthy conversations; we utilize intelligent technology to make complex choices understandable for everyone. Generative AI plays a pivotal role in shaping the future of Frits' mortgage advice.As a Fullstack TypeScript AI Engineer, you will translate state-of-the-art LLM technology into robust, secure solutions that empower clients and accelerate mortgage advisors. Given the significant financial implications for clients and stringent regulations, our quality standards are exceptionally high. With the complexity of the subject matter and our ambition to bring generative AI directly to consumers, you will be working at the forefront of what is technologically possible.Your ResponsibilitiesIn your role as Fullstack TypeScript AI Engineer, you will be central to implementing LLM applications within Frits' mortgage advisory platform. You will ensure that intelligent technology provides tangible value to both clients and advisors. Collaborating closely with fellow developers, AI specialists, and mortgage and compliance experts, you will develop AI solutions that are comprehensible, reliable, and effective.Full stack development: Engage in software development across both the front and back end of our AI application stack.Front-end thought leadership: While our multidisciplinary team operates as full stack, each member brings deep expertise in a specific area. You will be our front-end thought leader, elevating user experience, performance, and visual consistency of our applications.Prompt design: Design, test, and optimize effective prompts and guardrails to ensure AI models produce consistently useful, safe, and relevant outputs.Evaluation & quality assurance: Design and implement tests (in collaboration with mortgage experts) for the LLM systems based on extensive test datasets.Monitoring & continuous improvement: Analyze production traces, logs, metrics, and user feedback to identify issues and optimize performance.Collaboration: Work closely with mortgage advisors, compliance officers, fellow developers, and AI specialists to translate domain-specific knowledge, business logic, and compliance requirements into effective LLM solutions.Why Join Us?Make a significant impact from day one: As a Fullstack TypeScript AI Engineer at Frits, you will have the opportunity to leave your mark from the start. No minor optimizations here, but transformative advancements.

Join Databricks as a Senior Backend Software Engineer to work on cutting-edge technologies that transform the way data is processed and analyzed. In this pivotal role, you will collaborate with a talented team to design and implement robust backend systems that support our innovative data platform. Your work will directly contribute to enhancing our customers' experiences and driving the future of data analytics.

About UsAsula is a pioneering bitcoin company dedicated to developing cutting-edge financial products that bridge the gap between bitcoin, blockchains, stablecoins, and traditional finance. Currently, we are focused on our innovative mobile application, Dawn, which empowers users to save and enhance their wealth through bitcoin and stablecoins. In addition to Dawn, our initiatives include enabling seamless bitcoin swaps and credit access for holders of all sizes via onchain protocols.RoleWe are in search of a versatile Senior Software Engineer to join our dynamic team, contributing across the backend stack to breathe life into our products. In this role, you will be expected to:Design and implement robust backend systems that support both user-facing applications (like Dawn) and essential protocol components.Architect scalable and resilient services, including APIs, stateful services, and blockchain data pipelines capable of handling real-world demands.Drive significant architectural enhancements to the codebase while establishing best practices in our evolving organization.Mentor team members to elevate long-term architecture and code quality.QualificationsA minimum of 3 years of hands-on experience as a systems engineer, designing and managing production services with real traffic, preferably in finance, trading, or blockchain sectors.In-depth knowledge of distributed systems, data modeling, and network architecture — with a focus on latency, throughput, and fault tolerance.Proficiency in at least one strongly-typed backend programming language (Rust, Go, or C++) and comfortable navigating various frameworks, APIs, and infrastructure.A genuine interest in bitcoin, blockchains, and onchain finance.Nice to HavesExperience utilizing stablecoins and/or bitcoin in your everyday transactions.Background in developing low-latency systems for trading.

Embark on your journey with IMC as a Graduate Software Engineer through our comprehensive five-week Global Trainee Programme. Collaborate with experienced engineers and traders, alongside fellow graduates from across Europe, the United States, and Asia-Pacific. This immersive experience will enhance your understanding of trading dynamics and financial markets, while equipping you with the skills to develop high-quality production software. You’ll delve into advanced topics in C++, Java, or Python, and receive continuous guidance from a dedicated mentor at our Amsterdam office. Following your traineeship, you will have the opportunity to contribute to our Execution teams, developing sophisticated networks and proprietary algorithms, or join our Strategy teams to create systems that drive big data analytics.

Speechify’s mission is to remove barriers to learning through reading. More than 50 million people worldwide use Speechify’s text-to-speech tools to turn PDFs, books, Google Docs, news articles, and websites into audio. Our products span iOS, Android, Mac, Chrome, and web, and have earned recognition such as Google’s Chrome Extension of the Year and Apple’s 2025 Design Award for Inclusivity. We are a fully remote team of nearly 200 professionals, including engineers, AI researchers, and domain experts. Team members have joined us from organizations like Amazon, Microsoft, Google, Stripe, Vercel, and Stanford’s PhD programs. Role overview The Platform Software Engineer will join the team responsible for building and maintaining backend services. This includes payments, analytics, subscriptions, new product features, text-to-speech capabilities, and external APIs. The work shapes the foundation for Speechify’s suite of products and directly impacts user experience. This role suits those who enjoy making product decisions, thrive in a collaborative environment, and care about delivering high-quality results. Speechify values technical skill, clear communication, and a strong work ethic. The organization operates with a flat structure, focusing on outcomes over hierarchy. Interview process Multiple technical interviews Process typically completes within one week Location This position is based in Amsterdam, Netherlands.

KPN DeX Service offers a Software Engineering Internship based in Amsterdam. This internship provides practical experience in software development within the telecommunications sector. What you will do Work alongside experienced engineers on active projects Tackle real-world software challenges and contribute to ongoing development Participate in all stages of the software development lifecycle, including design, implementation, and testing What you will gain Hands-on experience with current software engineering practices Opportunities to develop and strengthen technical skills Insight into how software solutions support telecommunications innovation This role is based in Amsterdam and is designed for those interested in learning from professionals while actively contributing to meaningful projects.

Be Yourself at ProtolabsWe embrace diversity and are an equal opportunity employer. We encourage individuals from all backgrounds to apply, even if they don’t meet every single qualification. Your unique perspective can help us grow and innovate.Why Choose Protolabs?As leaders in digital manufacturing, we attract doers, makers, and innovative thinkers who approach their work with an entrepreneurial mindset. Our culture revolves around delivering meaningful work that introduces new products to the market at unmatched speeds. We take pride in our diverse team, which is smart, genuine, humble, and passionate. It’s our people who inspire creativity and make our workplace feel like home.Join Our Team as a Senior Backend Engineer!This position is hybrid and open to candidates located in the Netherlands.The Manufacturing Partner Marketplace is the operational backbone of the Protolabs Network. We oversee the entire order lifecycle, from matching orders to the right manufacturing partners through production and quality control to ensuring timely delivery. Our role is crucial for maintaining seamless operations and customer satisfaction.In this role, you will develop systems that drive the marketplace, including automated auctions, order allocation, supplier tools, production workflows, global logistics, quality control, and internal operations tools. We seek a pragmatic problem solver who thrives in a dynamic environment and takes ownership of both the business challenges and technical solutions.

Join a Transformative CompanyAt Palantir, we develop cutting-edge software that enables data-driven decision-making and operational excellence. Our innovative platforms empower organizations to tackle critical challenges, from accelerating the development of life-saving pharmaceuticals to enhancing supply chain resilience and aiding in child recovery efforts.Your RoleAs a Forward Deployed Software Engineer (FDSE), you will collaborate closely with clients to identify their most pressing issues and craft tailored solutions that leverage data effectively. Our clients depend on Palantir’s powerful tools for their most vital operations, often presenting questions like, “What is causing our flight delays?” or “How can we improve our detection of money laundering?” In this role, you will harness your analytical skills, creativity, and technical expertise to drive meaningful outcomes across various industries.In this position, you will take on responsibilities akin to those of a startup CTO: working in agile teams with significant autonomy while overseeing the complete execution of high-impact projects. Your daily activities may include architectural discussions with peers, managing large-scale data sets, developing custom web applications, engaging with executive clients, and strategizing for your team.Whether your aspirations lie in entrepreneurship or engineering leadership, Palantir offers an unparalleled environment to cultivate your skills alongside exceptional colleagues. Here, you'll learn to dissect complex problems, assess the ramifications of solutions, and explore new technologies and programming languages, potentially even creating them yourself. You will operate independently while benefiting from a supportive yet challenging community that encourages your growth and development.

Speechify is hiring a Software Engineer for the iOS Core Product team in Amsterdam. This role focuses on building new features and making the user experience better for the Speechify iOS app. The team works together to create tools that help people get more from audio content. Responsibilities Design and implement features for the Speechify iOS platform Use Swift and iOS frameworks to write reliable, high-quality code Work closely with fellow engineers to solve technical challenges and deliver updates Location This position is based in Amsterdam, Netherlands.