Senior C# Developer .Net Core - FinTech

Job Description Senior C# Developer / Backend Software Engineer (C# .Net Core) Newcastle onsite to 130k+Are you a backend focused C# Developer 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 FinTech 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) + Bonus25 days holidayBupa 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 C# Developer 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 0900-1800 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-levelYou're a technologist who enjoys collaborating and problem solving, working on complex, distributed systemsYou have expertise with modern C# .Net Core, Python skills would also be of benefitYou have a strong knowledge of modern software engineering best practices and have experience across the full software development lifecycleYou have a thorough understanding of Computer Science fundamentals such as OOP, Data Structures, Design Patterns, AlgorithmsYou'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 C# Developer / Backend Software Engineer (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. JBRP1_UKTJ

Created: 2026-03-17