Senior C# Full Stack Engineer

  • Harnham - Data & Analytics Recruitment
  • Jun 25, 2026
Full time Telecommunications

Job Description

Senior C# Full Stack Engineer

FULLY ONSITE: London

Salary: £100,000 to £130,000

This is an opportunity for a senior engineer to take ownership of complex systems and contribute to the direction of a growing engineering function. You will work on high-impact projects with real-time performance challenges.

The Company

They are an established, technology-led organisation with a strong focus on high-performance systems and data-driven decision making. The engineering team is central to the business, working on a diverse range of projects with significant technical depth. The culture is collaborative, with a strong emphasis on autonomy and ownership.

The Role

Lead the development of C# and .NET applications across multiple platforms

Own key components of large-scale systems and drive technical excellence

Design and implement scalable and high-performance solutions

Collaborate closely with other teams to deliver impactful projects

Mentor engineers and contribute to team growth and best practices

Your Skills & Experience

Strong expertise in C# and .NET development

Proven experience building and optimising high-performance systems

Experience with full stack development and modern engineering practices

Strong understanding of system architecture and design

Ability to lead technically and influence engineering decisions

What They Offer

High level of ownership and autonomy

Opportunities to shape technical direction

A strong engineering culture focused on quality and innovation

How to Apply

Apply now with your CV to find out more.