Senior C#/.NET Engineer - Greenfield & Real-Time Data

Harnham; Greater London; On-site; GBP 110,000 - 160,000; Full time

Job summary

Harnham in London seeks a Senior Software Developer to join a high-performing engineering team. You will build and optimise C#/.NET applications across greenfield and data-intensive projects, taking ownership of design decisions and delivering scalable solutions.

The role involves mentoring peers, contributing to architecture, and collaborating with stakeholders to shape product direction. This is an in-office role five days a week in London.

Qualifications

• Strong commercial experience with C# and .NET.
• Experience building backend systems and full stack applications.
• Solid understanding of software engineering fundamentals, architecture and design principles.
• Experience with relational databases such as SQL Server.
• Clear communication of technical concepts.
• Proactive, self-driven learner.
• Interest in sports and understanding of major sports structures.

Responsibilities

• Designing, building, and optimising high-performance C#/.NET applications.
• Leading the delivery of greenfield projects and enhancements to existing platforms.
• Contributing to system architecture, design decisions, and performance optimization.
• Developing scalable solutions that process and manage large volumes of data.
• Collaborating with highly skilled engineers in a cross-functional environment.
• Taking ownership of projects and contributing ideas throughout the development lifecycle.
• Mentor and support other developers while promoting engineering best practices.

Skills

C#/.NET

Backend systems

Full stack

Architecture & design

SQL Server

Communication

Learning mindset

Sports knowledge

Job description

Harnham in London seeks a Senior Software Developer to join a high-performing engineering team. You will build and optimise C#/.NET applications across greenfield and data-intensive projects, taking ownership of design decisions and delivering scalable solutions.

The role involves mentoring peers, contributing to architecture, and collaborating with stakeholders to shape product direction. This is an in-office role five days a week in London.