Senior Backend Engineer

Required

• Solid, hands-on experience delivering backend services in production — you've shipped and operated real systems, ideally within a microservices architecture.
• Proven backend engineering experience in Java, which is the core language of our platform. Candidates with strong production experience in Go or Node.js are also encouraged to apply.
• Proven ownership of backend services built and operated within a microservices architecture.
• Production fluency in at least one modern backend framework (e.g. Spring Boot for Java, or an equivalent in Go or Node.js).
• A strong grasp of communication protocols such as HTTP, WebSockets and AMQP, including when to apply each.
• Deep knowledge of relational databases, including indexing, transactions, isolation levels, locking mechanisms and high-performance design.
• A track record of designing systems for high availability, scalability and resilience.
• Clear, structured problem-solving and the ability to explain technical decisions and trade-offs.
• Strong engineering fundamentals, sound judgement and confidence learning unfamiliar technologies.
• Depth in one backend ecosystem and sound tool choice matter more than familiarity with every technology listed.
• Bring your ambition to Europe’s fastest-growing mobile broker!
• We thank all applicants, but only candidates selected for interview will be contacted. All personal data of applicants is protected by law and treated with strict confidentiality.