> Markdown version of [/jobs/ext/3740101-backend-software-engineer-c-windows-finance](https://www.wearedevelopers.com/jobs/ext/3740101-backend-software-engineer-c-windows-finance). 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). --- # Backend Software Engineer C++ Windows - Finance - **Company:** gb Client Server - **Location:** Greater London, UK (Remote available) - **Salary:** £80,000.0 - **Contract:** Temporary contract - **Skills:** Microsoft Windows, Agile Methodology, Amazon Web Services, C Sharp (Programming Language), C++ (Programming Language), Data Transmissions, Data Structures, Software Design Patterns, Multicasting, Network Protocols, Object-Oriented Software Development, Software Engineering, Software Systems, TCP/IP, Microsoft Windows CE, Multithreading, Backend, Low Latency, Transport Protocols - **Published:** October 15, 2026 - **Apply:** https://www.totaljobs.com/job/backend-software-engineer/client-server-job108172512 ## About the Role * You have C / C++ development skills on Windows OS, some C# experience would be useful but not essential * You have full software development lifecycle experience * You have a good knowledge of networking protocols e.g. TCP/IP, multicast * You have a strong grounding in Computer Science fundamentals e.g. multi-threading, OOP, Data Structures, Design Patterns * You're collaborative with great communication skills ## Description Backend Software Engineer / Developer (Windows C / C++, C#) London to £80k FTC Are you a skilled Backend Software Engineer with strong C++ skills? You could be progressing your career in a senior, hands-on role at a global market data provider. As a Backend Software Engineer you will join an Agile team focussed on building and maintaining Exchange Connectivity software systems that require real-time and low latency, maintaining data feeds and developing key underlying transport protocols for data transmission. The platform has been built with C++ and C# deploying to AWS and requires high scalability and low latency - they currently handle 40 billion messages per day.