MID-SENIOR BACKEND ENGINEER - B2B REMOTE

Mid - Senior Backend Engineer Location: Remote - CET B2B 12 month renewable contract We’re looking for a Mid–Senior Backend Engineer to design, build, and scale backend systems for a real-time multiplayer game. This is a hands-on role where you’ll implement game features, optimize infrastructure, and ensure high performance, scalability, and security across distributed services. You’ll collaborate closely with production, design, and engineering teams to deliver end-to-end solutions—from architecture and development through to deployment and monitoring. You’ll also build automated tests, improve observability through metrics and logging, and contribute to a strong engineering culture through code reviews and knowledge sharing. What we’re looking for: 5+ years of backend/server development experience Strong C# and modern .NET expertise Experience with cloud platforms (ideally AWS) Solid understanding of distributed systems and scalability Experience with databases such as MongoDB and Redis Familiarity with CI/CD pipelines and Kubernetes Nice to have: Experience with Unity or game networking concepts Background in real-time multiplayer systems Experience with infrastructure-as-code and observability tools