Backend Software Engineer C# .Net - FinTech

  • Client Server Ltd.
  • Newcastle Upon Tyne, Tyne And Wear
  • 15/10/2025
Full time Information Technology Telecommunications Python Software Engineer

Job Description

Backend Software Engineer / Developer (C# .Net Core) Newcastle onsite to £130k+

Are you a backend focussed Software Engineer with a first class education looking for an opportunity to progress your career, working on complex and interesting systems in an impactful role?

You could be joining a FinTech scale-up that has secure backing, an established Hedge Fund client as a partner and ambitious growth plans.

What's in it for you:

  • Salary (to £130k, negotiable) + Bonus
  • 25 days holiday
  • Bupa healthcare
  • Generous pension contribution
  • Continuous career development opportunities
  • Social team atmosphere with a range of events and early finish for drinks on Fridays

Your role:

As a Backend Software Engineer you will collaborate with a small, talented team to deliver the core platform within a Microsoft environment using the latest versions of C# .Net to produce high quality code. You'll take ownership of technical projects, working across the full development lifecycle to understand business needs.

The company has ambitious growth plans, this is a great opportunity to be involved from the ground up and progress your career.

Location:

You'll join colleagues in brand new Central Newcastle offices on a full-time basis (Monday to Friday), working hours with some flexibility. The offices are well equipped and offer fantastic views across the City and the local countryside, many employees walk or cycle in (onsite showers available!).

About you:

  • You have achieved a minimum 2.1 BSc in Computer Science or similar technical discipline from a top tier / Russel Group university, backed by A's at A-level
  • You're a technologist who enjoys collaborating and problem solving, working on complex, distributed systems
  • You have expertise with modern C# .Net Core, Python skills would also be of benefit
  • You have a strong knowledge of modern software engineering best practices and have experience across the full software development lifecycle
  • You have a thorough understanding of Computer Science fundamentals such as OOP, Data Structures, Design Patterns, Algorithms
  • You're excited to join a start-up in a role that you can shape and influence

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

At Client Server we believe in a diverse workplace that allows people to play to their strengths and continually learn. We're an equal opportunities employer whose people come from all walks of life and will never discriminate based on race, colour, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The clients we work with share our values.