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Senior C# Developer Desktop Application

Client ServerReigate, Surrey🇬🇧United KingdomPosted 5 Aug 2026

Why This Role Stands Out

This remote Senior C# Developer role offers significant career growth and the chance to lead impactful projects within a reputable global Fintech company, with a competitive salary up to £90k. You'll thrive here if you excel at developing scalable C# desktop applications and enjoy continuous learning. Apply today to advance your career in a dynamic and supportive environment!

Quick Overview

Seniority
Mid Senior
Employment type
Full Time
Work mode
Hybrid
Location
Reigate, Surrey, United Kingdom
MicroservicesAgileAzureC#.NET

Job Description

Senior C# Developer / Engineer (C# .Net Desktop Application) Reigate / WFH to £90k

Do you have expertise with C# desktop development, working on complex scalable systems?

You could be progressing your career, in a senior, hands-on leadership role working on complex and technically challenging systems with continual learning opportunities a global Fintech.

What's in it for you:

As a Senior C# Developer / Engineer you will receive a competitive salary plus a range of perks and benefits:

  • Up to £90k salary plus bonus (c20%)
  • Hybrid working (3 days a week work from home)
  • Enhanced parental leave
  • 25 days holiday (plus buy days and your birthday off)
  • Pension (up to 10% contribution)
  • Health Care and Life Assurance
  • Training and career development
  • Social events and a range of other perks

Your role:

As a Senior C# Developer you'll join an Agile team responsible for the flagship desktop insurance platform that handles 4 billion requests per month. You'll play a key role in architecting, designing and developing new features and enhancements whilst ensuring high levels of security, reliability, maintainability, usability and performance.

You'll collaborate with the Product Owner and with other development teams to input into design and technical choices and provide technical ownership an Agile environment that encourages close collaboration and continual improvement.

Location / WFH:

There's a flexible work from home hybrid model, you'll join colleagues in the Reigate office twice a week for team meet-ups and stakeholder meetings with the other three days work from home.

About you:

  • You have expertise with C# .Net Core backend software development, having worked on large, scalable systems with complexity
  • You have strong technical leadership experience (taking ownership of features, not managing people)
  • You are collaborative and pragmatic yet able to push back and influence senior engineers
  • You're an advocate of creating, clean, reusable and maintainable code and have a good knowledge of modern Microsoft software engineering best practices
  • You have a good knowledge of event driven architecture
  • You have a thorough understanding of Computer Science fundamentals such as OOP, Data Structures, Design Patters, Algorithms
  • You have a good understanding of CI/CD and Infrastructure as Code (IaC)
  • You have an appreciation of Azure, SaaS, PaaS, microservices
  • You're likely to be degree educated in a relevant STEM discipline e.g. Computer Science with a good grasp of mathematics

Apply now to find out more about this Senior C# Developer / Engineer (C# .Net Core) opportunity.

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