Senior Backend Developer London - Hybrid Up to £100,000 + Bonus C# | .NET | Microservices | Cloud | Distributed Systems My client, a global leader in financial market infrastructure, is looking for a Senior Developer to join a growing engineering team responsible for building and evolving business-critical Front Office trading applications. This is an excellent opportunity to join a major platform modernisation programme, working on a combination of greenfield development and the evolution of existing trading systems. You''ll work alongside experienced engineers and technical leaders, helping to design scalable distributed applications that support global financial markets while having genuine input into technical direction and architecture. Key Responsibilities Design, develop and enhance high-performance Back End applications using C# and .NET Build scalable distributed systems that support business-critical Front Office trading platforms Contribute to architectural decisions and help shape the future direction of the platform Develop resilient microservices and APIs using modern engineering practices Take ownership of features throughout the full software development life cycle, from design through to production Work closely with Principal Engineers, Architects and business stakeholders to deliver robust technical solutions Support the ongoing modernisation of existing platforms while contributing to greenfield initiatives Champion engineering best practices including ..... full job details .....