Mid-Level Software Engineer - React at Transferz | Amsterdam

At Transferz, we’re on the lookout for a talented Mid-Level Software Engineer with a robust background in frontend development, particularly with React. This is not just another job; it’s an opportunity to take ownership of your work and make a significant impact in the world of ground transportation.As part of a small yet ambitious team, you will be instrumental in shaping the future of our microservice platform serving over 10,000 travelers daily across more than 150 countries. This role is perfect for someone who has outgrown their current position due to bureaucratic constraints and is eager to embrace a fast-paced, dynamic environment.You will be responsible for designing and implementing features from inception to production while influencing technical strategies across multiple teams. Your experience will guide our roadmap, enhance product ideas, and ultimately improve the customer experience.We value in-person collaboration at our Amsterdam office, where your contributions will directly influence the company's trajectory.

Join Us as a Data Engineer Intern at Transferz!Are you passionate about leveraging commercial and operational data to extract valuable insights? Do you thrive in a fast-paced, ever-evolving scale-up environment and enjoy identifying market opportunities through data analysis? If so, we invite you to apply for the Data Engineer Intern position at Transferz!Role: Data Engineer InternLocation: Amsterdam (Office-based)Duration: Minimum of 6 monthsStart Date: ASAP or flexible based on your availabilityAbout Transferz:Transferz is a global marketplace specializing in ground transportation, catering to travelers, travel brands, and transfer companies. Our platform enables travelers to complete their journeys effortlessly with door-to-door transfers, providing the flexibility to choose their preferred vehicle type and pricing. With operations spanning over 150 countries, including more than 1,200 airports and seaports, and a network of over 1,500 transfer companies, Transferz is at the forefront of global travel. Our goal is to become the leading name in pre-booked ground transportation.As a Data Engineer Intern, you will be an integral part of our global data team, serving as a primary resource for our engineering needs. You will contribute to our revenue management tools, ensuring we provide competitive pricing on a worldwide scale, and collaborate closely with international teams to create impactful automated solutions.Your Responsibilities:· Automate existing processes, either independently or in collaboration with our data engineers.· Develop real-time pricing analytics tools.· Create and maintain insightful reports and interactive dashboards using Power BI.· Collaborate with stakeholders to convert data requirements into actionable insights.· Stay updated on industry analytics trends and innovative AI methodologies.

We are seeking a talented Mid-Level Java Developer with a background in React to join our dynamic team at XITE. Your primary responsibility will be backend development for our proprietary Media Asset Management and curation systems, utilized by our Music Team.About XITEXITE is dedicated to sharing our passion for music videos with the world, allowing audiences to 'see' their music as well as hear it. Our mission is to provide the best music video experience globally. Based in Amsterdam, XITE currently serves over 100 million households across North America and Europe.XITE offers exceptional music video experiences through our four main products:Global & International (Europe & North America)FAST (Free Ad-Supported Streaming TV): A rapidly expanding global platform that offers themed music channels directly on smart TVs, featuring 26 genre and decade-based channels across Europe and North America.Interactive TV App: This app is available on smart TVs across various countries in Europe and North America, offering over 200 curated playlists for a personalized viewing experience.The NetherlandsLinear Television: Our brand's origins trace back to 2008, available specifically in the Netherlands via all major cable and fiber providers.XITE Music: An extensive collection of 51 non-stop audio channels exclusively available for viewers in the Netherlands.The Role and TeamAs a member of XITE's Content Technology Team, you will help maintain our music video catalog from ingestion to distribution across our interactive app, FAST channels, and linear TV. You will join a close-knit team of three engineers and two product team members, collaborating with our music team of around 10 individuals to create the best music video content experience in Europe and North America.In this role, you will take pride in maintaining well-functioning systems rather than high-volume daily tasks. Our pipelines manage a catalog of hundreds of thousands of music videos, and once established, they require minimal oversight. Your focus will be on improving these systems thoughtfully and building internal tools that enhance efficiency.

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.

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.

Join our team as a Medior Operations Engineer and play a vital role in ensuring the stability, security, and smooth operation of the Soverin platform. In this position, you will provide essential day-to-day operational support, monitor system performance, resolve incidents, and collaborate closely with our support team to keep our customers satisfied and uphold our SLA commitments.You will manage operational issues, monitor queues, respond to abuse notifications, and help maintain the reliability of our email infrastructure. Additionally, you will contribute to operational enhancements, engage in platform projects, and aid in maintaining the documentation and processes required for our ISO-certified environment. Become a key member of our small team of email and privacy experts working on one of Europe’s leading privacy-first email platforms.

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.

airapps is hiring a React Engineer in Amsterdam to help improve user experience across its digital platforms. This position centers on building scalable and efficient applications using React and related technologies. Role overview This role focuses on developing features and solving technical challenges within the airapps product suite. The work involves collaborating with team members to deliver solutions that support a smooth and engaging user experience. What you will do Develop and maintain applications using React Work on projects aimed at improving digital user experiences Contribute ideas and solutions to technical challenges Requirements Experience with React and related technologies Interest in building scalable applications Strong problem-solving skills

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.

About the Role: Join IMC as a Mid Office Associate in our dynamic Middle Office team based in Amsterdam. In this pivotal role, you will play a crucial part in identifying, investigating, and reconciling trade, position, and cash discrepancies. Collaborating closely with trading desks, clearing firms, exchanges, and brokers, you will gain invaluable insights as you work alongside Traders, enhancing your understanding of the financial markets through daily, cross-functional interactions. As a member of a collaborative team of talented and technically skilled professionals, you will continue to advance your expertise as the business evolves. Your Core Responsibilities: Identify, investigate, and reconcile trade, position, and cash discrepancies. Own the daily P&L substantiation and reconciliation processes along with management reporting. Reconcile trading fees with exchanges and clearing brokers. Process invoices and address discrepancies directly with brokers and exchanges. Continuously review current Middle Office operations processes to enhance efficiency and effectiveness. Collaborate with Back Office and Business Intelligence IT teams to specify and improve Middle Office applications and tools. Provide operational support across various trading desks. Conduct ad hoc portfolio analyses and manage project work as necessary. Facilitate cash transfers to meet funding needs. Work with the Finance team to support month-end accounting processes. Your Skills and Experience: Bachelor’s Degree in Finance, Economics, or Accounting is preferred. A minimum of 5 years of relevant experience in a similar role within an Investment Bank, Pension/Hedge Fund, or Asset Management firm. Strong accounting or finance background is highly desirable. Experience with derivative products is a significant plus. Familiarity with Power and Energy commodities or FX is advantageous. Proficient in Excel (VBA Macro experience is preferred). Basic coding skills in Python and SQL are preferred. Experience with trade settlement processes and invoice management is beneficial. Self-motivated, proactive, and adaptable to new technologies. Strong problem-solving abilities with a proven record of process improvement. Dynamic, curious, and tenacious personality with excellent interpersonal skills. Exceptional written and verbal communication skills.

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.

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.

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.

Work Model and Location This Intermediate Software Engineer role uses a hybrid work model, combining remote work with time spent at the RIPE NCC office near Amsterdam Central Station. Applicants must already reside in the Netherlands, as relocation support is not available. Compensation and Hours Total annual compensation ranges from EUR 54,000 to EUR 64,000 before taxes. This package covers allowances and a comprehensive set of secondary benefits. The standard workweek is 37.5 hours. Both full-time and part-time schedules are possible. Role Overview RIPE NCC engineers develop software that underpins the Internet’s core operations. In this role, work alongside a collaborative team to deliver projects supporting members such as ISPs, governments, and educational organizations as they manage Internet number resources like IP addresses and ASNs. The team also builds internal tools and services that help keep the Internet stable and reliable. Main Responsibilities Design and implement technical solutions for complex challenges, focusing on maintainability and effectiveness. Develop new features for both back-end and front-end systems, with a focus on TypeScript and React. Use Java to enhance back-end services, aiming for strong performance and reliability. Maintain and improve existing software services. Write, test, and deploy code throughout the development cycle. Collaborate with DevOps engineers to strengthen CI/CD pipelines. Work closely with colleagues to deliver high-quality, scalable, and maintainable software.

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.

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.