Senior C# Developer .NET Core - FinTech

Client Server; North East; On-site; GBP 40,000 - 70,000; Full time

Job summary

Client Server in Newcastle, a growing FinTech scale-up, is seeking a backend-focused engineer with strong C# and .NET Core experience to join our fast-paced team.

You will develop and maintain high-impact backend systems, collaborate with cross-functional teams to deliver complex projects, and engage in architectural design and system optimization, while participating in code reviews to uphold quality.

Qualifications

• Proven experience with C# and .NET Core in backend systems.
• Experience with backend-focused software engineering.
• Familiarity with complex system architecture.
• Ability to work in a fast-paced FinTech environment.

Responsibilities

• Develop and maintain high-impact backend systems.
• Collaborate with cross-functional teams to deliver complex projects.
• Engage in architectural design and system optimization.
• Participate in code reviews and ensure quality best practices.
• Contribute to the continuous improvement of our development processes.

Skills

C# & .NET Core

Backend engineering

System architecture

FinTech environment

Education

Strong academic background

Job description

Salary: £40,000 - 70,000 per year

Requirements:

• Strong experience in C# and .Net Core development
• Strong academic background
• Experience with backend-focused software engineering
• Familiarity with complex system architecture
• Ability to work in a fast-paced FinTech environment

Responsibilities:

• Develop and maintain high-impact backend systems
• Collaborate with cross-functional teams to deliver complex projects
• Engage in architectural design and system optimization
• Participate in code reviews and ensure quality best practices
• Contribute to the continuous improvement of our development processes

Technologies:

• Backend
• C#
• ASP.NET

More:

We are a growing FinTech scale-up based in Newcastle, backed by solid financial resources and a partnership with a major Hedge Fund. Our team is dedicated to delivering innovative solutions while promoting expansion and collaboration. We offer competitive compensation packages and an exciting opportunity to be part of a dynamic and fast-paced work environment.

last updated 36 week of 2026