Principle and Senior Backend Software Engineer (.NET)

Principle and Senior Backend Software Engineer (.NET) Location: North London/HertfordshireType: Permanent | Strong Salary + Bonus + EquityRight to Work: UK work eligibility required (no sponsorship) What We’re Looking For We’re searching for a highly skilled Principle and Senior Backend Engineer with fast, accurate coding skills and a passion for building scalable, reliable systems. You will play a critical role in designing and developing backend services that power IoT products used across high-integrity industries including Fire, Security, Telecare, Retail, Water, and National Infrastructure. The Role You will: Build and maintain backend systems using .NET / C# Design clean, scalable, maintainable architectures Contribute to high automated test coverage across all services Translate business requirements into secure, performant backend solutions Collaborate closely with front‑end, QA, product, and platform teams Solve complex technical challenges with elegant, thoughtful solutions Our Technical Environment Backend: .NET / C# Automated Testing: NUnit Solution Testing: Playwright Strong focus on: Reliability and performance Clean, maintainable code High‑level automated test coverage Scalable, production‑ready services Our Culture We’re building a team centred on collaboration, inclusion, and engineering excellence. You’ll be joining an environment where people feel supported, challenged, and empowered. This is an exceptional opportunity to join a growing British IoT leader at a pivotal moment and contribute to the foundation of a brand‑new engineering organisation. #J-18808-Ljbffr