Lead C# & .NET Core Backend Engineer (Hands-on Leader)

Client Server; Newcastle upon Tyne; On-site; GBP 110,000 - 130,000; Full time

Job summary

Client Server in Newcastle upon Tyne is seeking a Lead C# Developer / Backend Software Engineer to own backend systems, architect APIs and microservices, and mentor a growing team. You will stay hands-on with design while guiding technical decisions and roadmaps.

Requirements include strong leadership and a 2.1 BSc in Computer Science or equivalent, plus deep experience in C# .NET Core. Python/C++/Java know-how is a plus. Onsite in Newcastle with a competitive package and bonus potential.

Qualifications

• Minimum 2.1 BSc in Computer Science or equivalent.
• Strong technical leadership and hands-on development experience.
• Expertise with modern C# .NET Core; Python/C++/Java are a plus.
• Experience across the full software development lifecycle.

Responsibilities

• Design and implement the logic behind core applications.
• Build APIs and microservices handling data processing and integrations.
• Oversee secure, reliable server environments and deployment.
• Lead code reviews, mentoring, and problem solving to unblock delivery.

Skills

C# .NET Core

Technical leadership

Mentoring

Python

C++

Java

Education

2.1 BSc in Computer Science or equivalent

Job description

Client Server in Newcastle upon Tyne is seeking a Lead C# Developer / Backend Software Engineer to own backend systems, architect APIs and microservices, and mentor a growing team. You will stay hands-on with design while guiding technical decisions and roadmaps.

Requirements include strong leadership and a 2.1 BSc in Computer Science or equivalent, plus deep experience in C# .NET Core. Python/C++/Java know-how is a plus. Onsite in Newcastle with a competitive package and bonus potential.