Senior Backend Engineer (m/f/d) - API Development | Berlin (Hybrid)
Location: Berlin (hybrid)
A fast-growing European FinTech company is looking for an experienced backend engineer to help build a new API-driven product offering. The company specializes in digital asset infrastructure and is expanding its platform to support B2B integrations with institutional clients.
Your Mission
You will be responsible for designing and implementing a new backend service from the ground up. This includes defining the architecture, building core logic, and ensuring seamless integration with both internal systems and external partners. The role offers significant autonomy and the opportunity to shape a product in its early stages.
Key responsibilities include:
- Developing a robust and secure MVP for a new API product
- Building scalable backend services with a strong focus on maintainability and performance
- Collaborating with cross-functional teams to align technical solutions with product goals
- Ensuring high standards in API usability, documentation, and integration experience
- Improving development workflows, including CI/CD pipelines and automated testing
- Monitoring and optimizing system performance and reliability
Tech Environment
- Languages: Go (primary), TypeScript (optional but beneficial)
- API Design: RESTful APIs with emphasis on security, auditability, and multitenancy
- Infrastructure: Docker, Kubernetes, cloud platforms (AWS, GCP, or Azure)
- Tooling: CI/CD pipelines, automated testing frameworks, code review practices
What You Bring
- 5+ years of backend development experience, ideally with Go
- Proven experience in building and maintaining APIs in a SaaS environment
- Familiarity with cloud-native technologies and container orchestration
- Interest in financial systems or blockchain technology is a plus
- Strong communication skills and a collaborative mindset in a diverse team
What's Offered
- A key role in shaping a new product in a regulated FinTech setting
- Flat hierarchies, fast decision-making, and a high degree of ownership
- Hybrid work model with flexibility and autonomy
- A collaborative, international team working on cutting-edge financial infrastructure
FAQs
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