> Markdown version of [/jobs/ext/2731343-senior-backend-engineer](https://www.wearedevelopers.com/jobs/ext/2731343-senior-backend-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Backend Engineer - **Company:** numa group - **Location:** Bielefeld, Germany - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Amazon Web Services, Continuous Integration, Cursor, Amazon DynamoDB, Amazon Simple Notification Service (SNS), TypeScript, Backend, Amazon Relational Database Service, Api Design, NestJS, Amazon Simple Queue Service (SQS), GPT, Serverless Computing - **Published:** September 5, 2026 - **Apply:** https://www.adzuna.de/details/5869247535 ## About the Role We value passion and potential just as much as experience. If this role sparks your interest, we'd love to hear from you, even if you're not an exact match. Ideally, you bring: * 5+ years in professional backend engineering * Expertise in TypeScript, NestJS, and API design * Solid experience with AWS (Lambda, SQS, SNS, DynamoDB, RDS) * Knowledge of CI/CD workflows * A self-starter mindset with a drive to innovate * Pragmatic approach to problem solving * Enthusiastic about AI. You're comfortable leveraging tools such as Claude Code, ChatGPT, and Cursor. * Bonus: familiarity with Infrastructure as Code (like sst.dev) ## Description * Design, build, and optimize high-performance backend services * Ensure stability, scalability, and security of our serverless stack * Drive architectural discussions and establish best practices in testing, deployment, and monitoring * Mentor engineers and foster a culture of technical excellence * Collaborate across teams to shape the future of hospitality tech ## Related Videos - [Nest.js - TypeScript in the backend can also be clean](https://www.wearedevelopers.com/videos/1033-nest-js-typescript-in-the-backend-can-also-be-clean) - [Shipping Faster with Less: Render on Cloud Hosting, AI Workloads, and the Future of DevOps](https://www.wearedevelopers.com/videos/1894-shipping-faster-with-less-render-on-cloud-hosting-ai-workloads-and-the-future-of-devops) - [".Net is too slow" was not an option](https://www.wearedevelopers.com/videos/100176-net-is-too-slow-was-not-an-option) - [Livecoding with AI](https://www.wearedevelopers.com/videos/1201-livecoding-with-ai) - [Streaming AI Responses in Real-Time with SSE in Next.js & NestJS](https://www.wearedevelopers.com/videos/1630-streaming-ai-responses-in-real-time-with-sse-in-next-js-nestjs) - [Next, Nest, Nuxt… Nust?](https://www.wearedevelopers.com/videos/421-next-nest-nuxt-nust) ## Related Articles - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Backend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/196-backend-developer-salary-in-germany-2023) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs)