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Senior Software Engineer C# .Net Core - FinTech

Job in Newcastle, Tyne and Wear, NE1 6SQ, England, UK
Listing for: client server
Full Time position
Listed on 2026-01-09
Job specializations:
  • Software Development
    Software Engineer, C# / Unity Developer, Full Stack Developer, Backend Developer
Salary/Wage Range or Industry Benchmark: 130000 GBP Yearly GBP 130000.00 YEAR
Job Description & How to Apply Below
Senior Software Engineer / Back End Developer (C# .Net Core)
* Newcastle onsite
* to £130k Are you a back end focused Software Engineer with a strong academic background, looking to take the next step in your career? This is an opportunity to work on complex, high-impact systems at a growing Fin Tech scale-up with solid financial backing, a major Hedge Fund partnership, and ambitious plans for expansion. 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 Senior 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 Senior Software Engineer / Back End 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.
Position Requirements
10+ Years work experience
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