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# Senior Backend Engineer (all genders)

- **Company:** Babbel
- **Location:** Berlin, Germany
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Amazon Web Services, Amazon DynamoDB, Python (Programming Language), Node.Js, Data Streaming, TypeScript, Web Application Frameworks, AI Coding Agents, Backend, Free and Open-Source Software, Functional Programming, Api Gateway, Terraform, Serverless Computing
- **Published:** November 14, 2026
- **Apply:** https://www.adzuna.de/details/5963521977

## About the Role

* Strong, hands-on backend engineering in TypeScript and Node as your primary working language today. We mean back-end services: not build tooling, and not the server a front-end framework happens to ship with.
 * Deep, practical AWS experience in a serverless-first setting. Lambda, API Gateway, DynamoDB and event streaming are our daily tools, and we want someone who has designed against them rather than only deployed onto them.
 * The ability to design API and data contracts and to model a domain, including type-safe transforms at the boundaries between the API, the domain and persistence.
 * Real production ownership. You have instrumented your own services, understood their failure modes, changed live data without losing any, and worked incidents on systems you owned.
 * Coding agents are part of your daily workflow, and you check their output before you rely on it. You are neither dismissive of them nor careless with them.
 * Self-sufficiency. You get yourself unstuck in an unfamiliar codebase without a minder, and you work within its grain rather than rewriting what you have not yet understood.
 * Working familiarity with infrastructure as code (Terraform) and CI/CD pipelines, enough to ship and change your own service's delivery. This is not an infrastructure role, so depth here is not the bar.
 * Python as a welcome secondary language. Some of our services are Python, and a Labs engineer can expect to touch them.

Nice to have

 * Go or Rust for performance-critical components. Fully optional.
 * Experience with a monorepo build system and shared tooling.
 * Public technical work, such as open-source contributions or writing.