React C# .NET Developer
About this role
Remote (UK/Europe) React C# .NET Developer React TypeScript Ant Design Zustand C# .NET Framework 4.8 WebAPI Razor Microsoft SQL Server T-SQL GitHub MS Teams GitHub Actions Cloudflare Windows servers At Celestify, we build smart web, mobile, and AI-powered apps that help startups and businesses solve real problems. We're growing our small, fully-remote team and looking for a React / C# .NET Developer to join us in supporting and evolving an enterprise SaaS application used by quality and compliance teams around the world. This role requires close collaboration with the client team, clear written communication, and the ability to work independently from well-scoped GitHub issues. If you're a thoughtful engineer who thrives on problem-solving, communication, and getting things done, you'll fit right in. Tech stack • Frontend: React (TypeScript), Ant Design, Zustand • Backend: C# .NET Framework 4.8 (WebAPI), Razor • Database: Microsoft SQL Server (T-SQL) • Collaboration: GitHub Issues, MS Teams • DevOps: Git, GitHub Actions, Cloudflare, Windows servers What you bring - Must haves • Strong React development experience using TypeScript • Proven backend experience with C# and .NET Full Framework (WebAPI preferred) • Experience writing and optimizing SQL Server queries, views, and stored procedures • Excellent written and verbal communication skills, you'll work directly with the client team daily • Comfortable working from GitHub issues, asking clarifying questions, and proposing clean solutions • Experience improving and debugging legacy systems • Familiar with UI libraries like Ant Design or Bootstrap • Reliable, responsive, and proactive in async collaboration Nice to haves • Familiarity with DotNetNuke (DNN) or other .NET CMS platforms • Razor email templates and .NET email rendering experience • Comfortable recording short screencasts or walkthroughs to explain solutions • Understanding of enterprise UX and QA workflows • Able to interpret client screenshots and reproduce bugs with limited context You are...
What this role is, and what else it is called
Employers in the UK advertise this kind of work as Web Developer, Software Engineer, Software Developer and PHP Web Developer too, so it is worth searching more than one wording. It is a mid-level Software Engineering role in the UK, advertised as fully remote, so it is open to candidates working from home.
About hiring at Celestify
Celestify has 2 other live technology roles on its careers page. Of those, 100% are advertised as fully remote and 0% as hybrid. Elsewhere in its adverts Celestify asks for Node.js, Docker and PostgreSQL. We have been observing Celestify hiring technology staff since July 2026. See all Celestify roles, salaries and stack.
How this role compares to the market
1,026 live UK roles list C# right now, from 295 employers. The median advertised salary is £55,000; 31% are advertised as remote. Browse C# roles.
713 live UK roles list TypeScript right now, from 270 employers. The median advertised salary is £80,000; 46% are advertised as remote. Browse TypeScript roles.
Market figures are today's snapshot of live UK roles on employer careers pages; see hiring trends.
Technologies mentioned
Detected on Celestify's careers page. ProdReady Recruitment lists this vacancy as an aggregator and is not the employer; applications go to the employer's own site.