Salary: £100,000 - 130,000 per year Requirements: As a candidate, you should possess expertise in modern C# .Net and have a strong understanding of the best practices in software engineering. You should be comfortable working across the full software development lifecycle and have a thorough grasp of computer science fundamentals such as Object-Oriented Programming (OOP), Data Structures, Design Patterns, and Algorithms. We seek individuals who enjoy collaborating and problem-solving within complex, distributed systems. Furthermore, you need to have achieved at least a 2.1 BSc in Computer Science or a similar technical discipline from a top-tier university, along with A's at A-level. Responsibilities: In your role as a Backend Software Engineer, you will collaborate with a small, talented team to deliver our core platform within a Microsoft environment. Utilizing the latest versions of C# .Net, you will produce high-quality code. As we roll out and test the Beta of our product, you will have the unique opportunity to be involved from the ground up and significantly influence our ambitious growth plans. Technologies: Backend C# OOP ASP.NET More: We are a FinTech start-up with secure backing and an established Hedge Fund client as a partner, offering you the chance to progress your career in an impactful role. You'll be working from our Central Newcastle offices on a full-time basis, Monday to Friday. As a Backend Software Engineer/Developer, you will receive a competitive salary of up to £130k, alongside a substantial bonus and benefits package. At Client Server, we value a diverse workplace that enables people to leverage their strengths and continuously learn. We are committed to being an equal opportunities employer and do not discriminate based on race, color, religion, sex, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. last updated 5 week of 2026