Senior backend engineer (.net / c#)

Remote-first (Italy preferred)

Full-time freelance | Long-term (12+ months)

We are looking for a backend engineer who deeply understands how systems work under the hood. This role focuses on building and evolving high-performance financial infrastructure powering instant trading and crypto-native financial products. This is strictly a backend role.

What You’ll Work On

High-throughput C#/. NET backend services Real-time trading workflows Event-driven architectures Stateful systems and persistent connections Performance optimization and concurrency management Low-latency APIs and financial flows Scalable distributed systems What We Expect

Strong knowledge of C# /. NET internals Solid understanding of memory management (stack vs heap) Concurrency, multi-threading, async patterns Experience building real-time or low-latency systems Understanding of TCP / / Web Sockets Experience in fintech, trading, crypto or banking systems Strong ownership mindset If you think you are a match, please apply here!