> Markdown version of [/jobs/ext/2797629-principle-and-senior-backend-software-engineer-net](https://www.wearedevelopers.com/jobs/ext/2797629-principle-and-senior-backend-software-engineer-net). 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). --- # Principle and Senior Backend Software Engineer (.NET) - **Company:** Recenso - **Location:** London, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** .NET Framework, Automation of Tests, C Sharp (Programming Language), Nunit, Backend, Playwright, Front End Software Development, Software Coding - **Published:** September 8, 2026 - **Apply:** https://www.collegerecruiter.com/job/2840571091-principle-and-senior-backend-software-engineer-net ## About the Role 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. ## Description 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 ## Related Videos - [Boost Productivity with AI: Figma & Playwright MCP Workflows - Aris Markogiannakis](https://www.wearedevelopers.com/videos/1768-boost-productivity-with-ai-figma-playwright-mcp-workflows-aris-markogiannakis) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Architectures that we can use with .NET](https://www.wearedevelopers.com/videos/935-architectures-that-we-can-use-with-net) - [Meet Your New BFF: Backend to Frontend without the Duct Tape](https://www.wearedevelopers.com/videos/682-meet-your-new-bff-backend-to-frontend-without-the-duct-tape) - [Are Classical Automation Frameworks Dead? How AI Agents Are Transforming QA](https://www.wearedevelopers.com/videos/100243-are-classical-automation-frameworks-dead-how-ai-agents-are-transforming-qa) - [Nest.js - TypeScript in the backend can also be clean](https://www.wearedevelopers.com/videos/1033-nest-js-typescript-in-the-backend-can-also-be-clean) ## Related Articles - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Frontend Developer Salary in The UK](https://www.wearedevelopers.com/magazine/233-frontend-developer-salary-in-the-uk) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Fullstack Developer Salary UK](https://www.wearedevelopers.com/magazine/251-fullstack-developer-salary-uk)