> Markdown version of [/jobs/ext/4665505-senior-backend-engineer](https://www.wearedevelopers.com/jobs/ext/4665505-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:** Almedia - **Location:** Berlin, Germany - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), A/B Testing, Artificial Intelligence, BigQuery, Code Review, Cursor, DevOps, Web Development, MongoDB, MySQL, Node.Js, RabbitMQ, Redis, Site Reliability Engineering Practices, Microsoft Copilot, TypeScript, WebSocket, Datadog, Backend, Gitlab-ci, Kubernetes, Data Analytics, Graphql, Claude, NestJS, Restful APIs, Grpc, Docker, Microservices - **Published:** November 11, 2026 - **Apply:** https://startup.jobs/senior-backend-engineer-almedia-co-8284165 ## About the Role * Several years of hands-on production experience with Node.js. * Strong experience in web development. * A strong understanding of scalable systems. * Production experience with most of our tech stack. * Ownership mindset: take full ownership of your work. * Strong English communication skills for effective collaboration. What Makes You a Great Fit * Experience working with microservices architecture. * Background in DevOps/SRE practices. ## Description We're looking for a Senior Backend Engineer to help grow our AdTech platform. If you're passionate about building scalable, high-performance web applications and enjoy collaborating across teams to serve millions of users, we'd love to hear from you. Tech stack: * TypeScript, Node.js, NestJS, Jest. * GraphQL, REST, gRPC, WebSockets. * MySQL, MongoDB, Redis, BigQuery. * RabbitMQ, Google Pub/Sub. * Docker, Kubernetes, GitLab CI/CD. * Datadog. What You'll Do * Design and develop clean, efficient, and scalable code using Node.js, NestJS and TypeScript. * Create a data-driven product by integrating external services for A/B testing and feature flagging. * Deliver high-quality testable code at a high pace, making sure everything runs smoothly. * Own your services end to end, from design to production. * Help our junior engineers grow through code reviews and pairing. * Use AI tools (Claude, Cursor, Copilot, etc.) as part of your everyday toolkit. We actively encourage AI-assisted development. ## About Almedia At Almedia our mission is to engineer the future of user acquisition and revolutionize the advertising technology landscape.  As a market leader, with our platform Freecash, we are reshaping how businesses connect with their audiences. **Tech Stack:** React, Node.js, Next.js, TypeScript, GraphQL **Industries:** Advertising, Gaming - **Size:** 51–200 employees - **HQ:** Berlin, Germany [Company profile](https://www.wearedevelopers.com/companies/4058-almedia)