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# Full-Stack Software Developer

- **Company:** Harnham
- **Location:** London, UK
- **Salary:** £70,000.0 - £100,000.0
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), .NET Framework, Big Data, C Sharp (Programming Language), Relational Databases, Microsoft SQL Server, Performance Tuning, Systems Architecture, Web Application Frameworks, Backend, Real Time Data
- **Published:** September 3, 2026
- **Apply:** https://www.reed.co.uk/jobs/full-stack-software-developer/57304086

## About the Role

The successful Full-Stack Software Developer will have the following skills and experience:

 * Strong commercial experience with C# and .NET
 * Experience building backend systems and full stack applications
 * JavaScript and modern frontend frameworks
 * A solid understanding of software engineering fundamentals and best practices
 * Experience working with relational databases such as SQL Server or similar
 * The ability to communicate technical concepts clearly and effectively
 * A proactive approach to learning and professional development
 * An interest in sports and a general understanding of how major sports are played and structured

## Description

As a Full-Stack Software Developer, you will build and enhance high-performance C#/.NET applications, working across greenfield projects, real-time data systems, and complex engineering challenges.

Specifically, you can expect to be involved in the following:

 * Building and maintaining C# and .NET applications used across the business
 * Working on both greenfield development and enhancements to existing systems
 * 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 contribute ideas throughout the development lifecycle
 * Working on a variety of technical challenges across multiple concurrent initiatives