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+

25 days holiday

Bupa healthcare

Generous pension

Career development opportunities

Social team atmosphere

Job summary

Client Server Limited in Newcastle is seeking a Senior C# Developer to join a backend team on-site, delivering high-quality code for complex FinTech-grade systems using the latest C# .Net Core. You will own technical projects and contribute across the full development lifecycle.

The role offers up to £110k+ with bonus, 25 days holiday, Bupa healthcare, pension, and ongoing career development opportunities in a collaborative, social environment.

Qualifications

• 2.1 BSc in Computer Science or equivalent from a top tier university.
• Strong collaboration and problem-solving skills for distributed systems.
• Expertise with modern C# .Net Core; Python skills beneficial.
• Solid understanding of software engineering best practices and full software development lifecycle.
• Strong CS fundamentals: OOP, data structures, design patterns, algorithms.
• Motivated to shape and influence a startup role.

Responsibilities

• Collaborate with a small team to deliver core platform using C# .Net Core and produce high-quality code.
• Take ownership of technical projects across the full development lifecycle to meet business needs.
• Contribute to architecture and best-practice discussions to drive scalable backend systems.

Skills

C#

.Net Core

Python

Education

BSc in Computer Science (2:1)

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
• 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 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