Senior C# Developer .Net Core - FinTech

Client Server Limited; Newcastle upon Tyne; On-site; GBP 99,000 - 121,000; Full time

Benefits offered by this job

Salary up to £110k (negotiable)

Bonus

25 days holiday

Social events and Friday drinks

Job summary

Client Server Limited is looking for a Senior C# Developer to build the backend platform in Newcastle on-site. You will work with a small, talented team, taking ownership of technical projects and delivering high-quality code across the full development lifecycle.

The role requires strong C#/.NET Core expertise, a good academic background (2.1 BSc in CS or equivalent), and collaboration within a startup-style environment.

Qualifications

• 2.1 BSc in Computer Science or similar from a top-tier university.
• Strong C# and .Net Core; Python skills a bonus.
• Experience across full SDLC and modern software practices.
• Solid knowledge of OOP, data structures, design patterns and algorithms.
• Eager to join a startup and help shape the role.

Responsibilities

• Deliver the core platform using the latest C# .Net Core.
• Collaborate with a small team to ship high-quality code.
• Take ownership of technical projects across the full development lifecycle.

Skills

C#

NET Core

Python

OOP

Data structures

Design patterns

Algorithms

Education

2.1 BSc Computer Science or equivalent

Job description

Senior C# Developer / Backend Software Engineer (C# .Net Core) *Newcastle onsite* to £110k+

Are you a senior, backend focused C# Developer with a strong academic background?

You could be working on complex, high impact systems at a growing FinTech scale-up with solid financial backing and ambitious growth plans.

What's in it for you:

• Salary (to £110k, negotiable) + Bonus
• 25 days holiday
• 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 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.

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-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