Senior Backend Developer at Speakap | Amsterdam

At Speakap, we are on a mission to revolutionize communication for frontline and deskless workers through our innovative mobile-first Employee Experience Platform. Our platform empowers over 600 clients and 400,000 users in diverse sectors such as retail, hospitality, and healthcare to stay connected, informed, and engaged directly from their smartphones, el…

Bij Speakap creëren we een mobile-first Employee Experience Platform dat frontline en deskless medewerkers ondersteunt in verbondenheid, informatievoorziening en betrokkenheid — allemaal via hun mobiele telefoon. Met meer dan 600 tevreden klanten en meer dan 400.000 gebruikers in sectoren zoals retail, horeca en zorg, transformeren we de manier waarop organisaties communiceren zonder afhankelijk te zijn van e-mail of desktopcomputers.Om onze groei te ondersteunen, zoeken we gedreven professionals die financiële uitdagingen niet uit de weg gaan — maar deze juist omarmen. Als Medior Finance Medewerker ben je verantwoordelijk voor essentiële financiële processen en fungeer je als een vertrouwde sparringpartner voor HR, commerciële afdelingen en het management.Dit is geen traditionele backoffice-rol. Jouw inzichten hebben directe impact op de strategische beslissingen die het bedrijf vooruithelpen. Je combineert operationele precisie met de dynamiek van een groeiende organisatie, vertaalt cijfers naar duidelijke verhalen en daagt de bestaande processen uit wanneer je verbeteringen ziet. Ben jij de persoon die graag dieper in de materie duikt en wil bijdragen aan een organisatie die het dagelijks werk van honderdduizenden mensen eenvoudiger maakt? Dan zijn wij op zoek naar jou.

Speakap, based in Amsterdam, connects organizations with their frontline employees through a dedicated communication platform. Supporting over 600 clients worldwide, the team is expanding and now seeks a Senior iOS Developer to help shape the mobile experience. Role overview This Senior iOS Developer position centers on designing and building iOS applications with Swift, SwiftUI, and other current Apple frameworks. The role emphasizes quality, maintainability, and forward-thinking development practices. Collaboration with engineers, designers, and product managers is key to delivering features that enhance the user experience. What you will do Design and build iOS apps using Swift, SwiftUI, and the latest Apple frameworks, focusing on quality and maintainability. Use AI tools to accelerate development and improve code quality as standards evolve. Promote strong mobile development practices, including automation, CI/CD, performance tuning, and scalable architecture. Lead architectural discussions, providing solutions that balance innovation and long-term support. Maintain high code standards through testing, peer reviews, and Clean Code principles. Mentor colleagues to strengthen coding practices and support their growth. Work closely with cross-functional teams to deliver user-focused features. Who you are This role suits someone comfortable building high-performance mobile apps who enjoys technical challenges and cross-team collaboration. Writing clean, maintainable code and meeting deadlines are strengths. Staying curious and keeping up with new trends in mobile development is important. Requirements Bachelor’s degree in Computer Science, Engineering, or a related field. Professional experience developing iOS apps with Swift and SwiftUI. Strong understanding of mobile development best practices and software design principles. Experience with CI/CD pipelines and automated testing tools. Clear communication skills and a collaborative approach. Location: Amsterdam, Noord-Holland, Netherlands

Join our innovative team at dev2 as a Senior Backend Developer specializing in AdTech. In this role, you will be responsible for designing and implementing robust backend systems that drive our advertising technology solutions. You will work closely with cross-functional teams to ensure seamless integration and performance of applications.

Are you ready to transform the banking experience? At bunq, we strive to simplify lives and redefine banking for everyone. This is your opportunity to contribute to the future of digital banking, creating the ultimate app experience. Leverage your coding skills to develop and enhance the Bank of The Free, ensuring seamless, secure, and flawless functionality for our users.Take OwnershipAs a Senior Backend Engineer at bunq, you will lead our backend development, providing users and employees with unmatched stability and performance.Collaborate with our product team to design and implement robust backend structures for innovative user-facing features, utilizing technologies such as MySQL, Redis, Elasticsearch, and PHP.Support the growth of our backend team by mentoring junior developers and helping them reach their full potential.Oversee high-availability production systems and assist other departments by developing and maintaining efficient, scalable processes.

At Speakap, we are dedicated to creating innovative products tailored for individuals who work outside the traditional office environment. Our platform is utilized by over 600 companies to ensure that their employees, including nurses, warehouse workers, and store managers, remain connected, informed, and engaged.Located in the vibrant Amsterdam IJburg, we are a small yet ambitious team that values collaboration and creativity. While our office offers stunning views, it's the people and the meaningful work that truly make it a great place to be. We are passionate about the products we develop and the processes we use to create them, and we seek a like-minded individual to join our team.As a Senior Product Manager, you will take the lead on significant product initiatives, collaborating closely with customers, engineers, and cross-functional teams to define the future direction of our platform.

airapps is seeking a Backend Engineer to join the team in Amsterdam. The focus of this role is on developing and maintaining software that powers scalable applications and high-performing systems. The backend work directly supports a seamless experience for users of airapps products. Role overview Build and maintain backend systems that enable airapps products to operate smoothly Contribute to the design and architecture of software solutions built for scale Work to enhance system performance and reliability Requirements Experience developing backend applications Interest in creating scalable and efficient systems Ability to design solutions that support a strong user experience This position is located in Amsterdam.

Join our innovative team at Databricks as a Senior Backend Software Engineer, where you'll contribute to cutting-edge data solutions and scalable systems. Collaborate with a talented team to design and implement robust backend services that power our platform, enabling businesses to unlock the full potential of their data.

Role overview Creative Fabrica is looking for a Senior Backend Engineer with strong Go experience to help shape the foundation of its digital platform. The focus is on building and refining scalable backend services that power a growing creative marketplace. What you will do Collaborate with a talented team to design, develop, and maintain backend systems using Go Support the reliability and efficiency of backend services as the platform expands Share ideas and technical solutions to enhance user experience and add new platform features Address challenging technical problems in backend development Location This role is based in Amsterdam, North Holland, Netherlands.

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 bunq and be part of the transformation in the banking sector! We are dedicated to simplifying banking experiences and redefining the essence of financial services. As a Backend Engineer, you will play a pivotal role in delivering an outstanding banking application by ensuring seamless, secure, and efficient functionality for our users. Leverage your coding expertise to enhance the Bank of the Free from behind the scenes.Embrace ResponsibilityAs a Backend Engineer at bunq, you will spearhead our backend development efforts, guaranteeing our employees and users benefit from unrivaled stability and performance.Developing user-facing features.Collaborating with product teams to propose and design backend structures for new features, while supporting other departments through process development and maintenance.Utilizing technologies such as MySQL, Redis, Elasticsearch, and PHP to enhance the Bank of the Free.

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.

dept offers an internship for a Backend Developer in Amsterdam or Rotterdam. This position gives aspiring developers the chance to gain hands-on experience and learn from seasoned professionals. Role overview The internship centers on supporting backend development for active projects. Interns will join a team of experienced colleagues and take part in real-world software work. What you will do Assist in building and maintaining backend systems for ongoing projects Collaborate with a team of skilled professionals Share ideas and contribute code to development efforts

About UsAt Vandebron, we are revolutionizing the energy sector by prioritizing sustainability and creating a transparent platform that connects consumers directly with local green energy producers. Since our inception in 2014, we have been committed to fostering a sustainable energy future.As we enter Chapter 2 of our journey, our mission is to guarantee 100% availability of green energy - 100% of the time. We are implementing innovative solutions such as flexible wind and solar energy utilization, Smart EV Charging, and advanced energy storage systems, ensuring a proactive approach to shaping a green future.Join us in creating smart energy solutions - that’s Vandebron.The RoleWe are rethinking our technology infrastructure, and we want you to be part of this exciting transition! As a Senior Backend Engineer, you will play an essential role as we move from a Scala/ZIO foundation to a new generation of services built with Kotlin and Spring Boot. You will be instrumental in developing our future-proof platform, creating scalable and high-quality services that drive Vandebron’s mission for 100% green energy.Collaborating within a dynamic, cross-functional team of engineers, designers, and product stakeholders, you will transform complex energy challenges into efficient backend solutions. Our culture promotes knowledge sharing and experiential learning, making it an integral part of our work environment.ResponsibilitiesCollaborate with fellow engineers to design and develop new microservices utilizing Kotlin and Spring Boot.Design and uphold clean, high-performing APIs that cater to our React and React Native frontends.Produce clean, efficient, and well-documented code that meets our product specifications with increasing autonomy.Engage in all phases of the development lifecycle, including writing tests, conducting code reviews, and ensuring the delivery of high-quality software.Contribute ideas and feedback within your team to cultivate a collaborative and productive work environment.

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.

Are you passionate about crafting intelligent and scalable solutions? Do you thrive in tackling complex systems alongside enthusiastic colleagues? As a Medior Backend .NET Engineer at Funda, you will develop software that empowers millions to navigate the housing market daily. From rapid search results to sophisticated data integration, your contributions will significantly enhance how the Netherlands discovers homes.Your Role at a GlanceIn this position, you will produce high-quality code for a platform that attracts tens of millions of visitors each month. You will utilize cutting-edge technologies such as .NET 8, Kubernetes, Azure, and event-driven architecture, deploying your code to production daily via Azure DevOps.Your responsibilities include full ownership of the services and features you develop, collaborating closely with colleagues to drive continuous improvements. This unique role offers the scale of Funda, the excellence of our codebase, and the autonomy to make a tangible impact.Key ResponsibilitiesEnhance and develop features that directly improve user experiences, such as accelerating search results or optimizing data streams for our calculation tools.Contribute to the evolution of our microservices architecture, ensuring systems remain stable, scalable, and easy to maintain.Diagnose and resolve issues, from identifying performance bottlenecks to implementing intelligent caching strategies.Collaborate with Funda's engineers, product designers, and product managers to transform innovative ideas into robust solutions.Conduct code reviews, share insights with team members, and learn from seasoned engineers.Take ownership of your code and ensure its quality even post-release.For additional insights, check out our Engineering blog: The benefits of having a lighthouse architectureYour TeamAt Funda, multiple scrum teams focus on various aspects of our platform, ranging from enhancing the search experience to revamping the system used by real estate agents for property management.

About myTomorrowsmyTomorrows is a pioneering global health technology company committed to removing obstacles for patients in search of treatment options.Our mission is to facilitate earlier and improved access to treatments by connecting individuals exploring potential solutions with the companies that create them. We collaborate closely with patients, healthcare professionals, trial sites, patient advocacy groups, and BioPharma, linking essential players in the drug development ecosystem.We have engineered an innovative AI-driven technology platform designed to simplify and enhance access to drugs currently in development. To assist our users and clients, we have assembled a team of industry experts ready to provide support. Our offerings include clinical trial patient recruitment, management of Expanded Access Programs, and Real-World Data collection.With a presence in 134 countries, we have supported over 17,000 patients, 3,000 physicians, and 350 trial sites, gaining the confidence of more than 60 BioPharma companies. In October 2025, we secured a €25M investment from Avego Healthcare Capital to accelerate our global growth and expand our operations.Join us in transforming the landscape of treatment access, making tomorrow’s therapies available to those in need today.The Opportunity: Backend EngineerAs a Backend Engineer, you will be pivotal in developing and maintaining the platform infrastructure that underpins our products. You will collaborate closely with Frontend Engineers, DevOps Engineers, and various stakeholders to design and develop scalable, reliable, and high-performance solutions.

Tebi builds a unified restaurant management system that connects sales, reservations, kitchen prep, payments, and analytics on one platform. The company’s technology supports hospitality teams as they streamline operations and improve service quality. Founded by Arnout Schuijff, co-founder of Adyen, and backed by €50 million from Index Ventures and CapitalG, Tebi already serves thousands of restaurants, cafés, bars, and coffee shops in the Netherlands, the UK, and beyond. Role overview This is a full-time position for recent or soon-to-graduate engineers interested in backend or mobile development. As one of Tebi’s first Graduate Software Engineers, you will join a team where learning and growth are central. The role offers hands-on experience with backend systems that handle financial transactions and real-time data, and the chance to help shape features that support restaurant teams daily. You will work closely with experienced engineers, starting with clear, manageable tasks. Guidance is provided through code reviews and regular feedback. Over time, responsibilities expand as your skills develop. The stack includes Kotlin (for backend and mobile), Google Cloud Platform, and PostgreSQL. What you will do Contribute to the codebase, focusing on backend features with support from senior engineers. Work on well-defined tasks such as fixing bugs, creating small endpoints, and improving services, with opportunities to take on larger projects as you grow. Participate in code reviews and learn Tebi’s coding standards and practices from experienced teammates. Write clean, maintainable code while building skills in testing, version control, and deployment. Join merchant visits to see how Tebi’s platform is used in real restaurant settings. Adopt a learning mindset: ask questions, experiment safely, and develop into a confident backend engineer with support from the team. Requirements Recent or soon-to-be-completed degree in Computer Science, Software Engineering, or a related field. Interest in software development and motivation to build technical skills. Some familiarity with Kotlin or another programming language, along with a basic understanding of backend development concepts. This position is based in Amsterdam.

Why join Nebius?Nebius is at the forefront of a transformative era in cloud computing, dedicated to empowering the global AI economy. We develop innovative tools and resources that enable our customers to tackle genuine challenges and revolutionize industries without incurring hefty infrastructure costs or the need for extensive in-house AI/ML teams. Our team operates on the cutting edge of AI cloud infrastructure, working alongside some of the most seasoned and imaginative leaders and engineers in the industry.Our Work EnvironmentBased in Amsterdam and publicly traded on Nasdaq, Nebius boasts a global presence with research and development hubs in Europe, North America, and Israel. Our workforce comprises over 1,400 employees, including more than 400 highly skilled engineers specializing in hardware and software engineering, complemented by an in-house AI R&D team.The OpportunityWe are seeking a talented Senior Frontend Developer to architect and implement internal user interfaces leveraging React and TypeScript. These user interfaces facilitate automation workflows that empower teams to effectively manage our company's hardware infrastructure—tracking assets, orchestrating data center deployments, provisioning and configuring servers, installing operating systems and drivers, and troubleshooting issues across distributed environments. You will play a crucial role throughout the product lifecycle—from concept and UX designs to production deployment in containerized environments (Docker, Kubernetes).

At Monks, we prioritize your safety. We will never ask for payment or banking information during the recruitment process. As we expand our teams, please be vigilant against fraudulent job postings or recruitment activities that misuse our name. Protect your personal information throughout the recruitment journey. While we may reach out to candidates via LinkedIn, all applications must be submitted through our official website (monks.com/careers).Monks is actively seeking exceptional Freelance Backend Developers to enhance our projects for Q3 & Q4! If you are proficient in .NET, Java, or Python, and possess practical experience with GCP and infrastructure, we would love to connect with you.Please note: Applicants must be Dutch nationals.Are you ready to engage in thrilling, diverse projects and leave your mark? Join us today—let's create something extraordinary together!About MonksMonks is the global, digital-first, data-driven operating brand under S4 Capital plc. With a legacy of innovation, we combine extensive global marketing and technology services to redefine brand interactions. Through our flagship AI ecosystem, Monks.Flow, we transform marketing into a growth engine, connecting brands to culture in real-time while delivering impactful creative solutions. We address critical business challenges, helping brands achieve sustained long-term success.Monks has been recognized as a Contender in The Forrester Wave™: Global Marketing Services, ranks among Cannes Lions' Top 10 Creative Companies (2022-25), and is featured annually in AdExchanger’s Programmatic Power Players list (2020-24). Additionally, we were honored as Adweek’s first AI Agency of the Year (2023) and received multiple awards for excellence in artificial intelligence.