Senior Full Stack Developer
4M Recruitment
Northampton · posted 3 August 2026
Salary
£60,000 – £70,000 a year
Job type
full time
Location
Northampton, Northamptonshire
Category
IT
Our client is currently looking to recruit a Senior Full Stack Developer on a permanent basis.
Senior Full Stack Developer (.NET & React)
Northamptonshire - Hybrid / Remote
£60,000 - £70,000
We're looking for an experienced Senior Full Stack Developer to join a talented software engineering team developing modern applications that power large-scale, mission-critical operations.
This is an exciting opportunity to play a key role in the development of a next-generation software platform, working with modern technologies including .NET, React, TypeScript and PostgreSQL. You'll help shape technical direction, contribute to architectural decisions, and deliver high-quality software that solves complex real-world challenges.
Working alongside experienced Software Engineers, Architects, Project Managers and Subject Matter Experts, you'll have the opportunity to make a genuine impact while continuing to develop your own technical expertise.
What You'll Be Doing
Design and develop modern web applications using C#, .NET, React and TypeScript.
Build scalable backend services and RESTful APIs using PostgreSQL.
Contribute to software architecture, technical design and engineering best practices.
Write clean, maintainable and well-tested code.
Participate in code reviews and mentor other developers where appropriate.
Collaborate with cross-functional teams to deliver high-quality customer-focused solutions.
Drive continuous improvement across development processes, tooling and platforms.
Work within Agile development practices using tools such as Jira and Confluence.
You'll be a passionate software engineer with strong commercial experience and a desire to build high-quality solutions using modern technologies.
You'll ideally have:
Strong commercial experience developing with C# and .NET.
Experience building modern web applications with React and TypeScript.
Experience designing and consuming RESTful APIs.
Good knowledge of relational databases, ideally PostgreSQL.
A solid understanding of software engineering principles, testing and maintainable code design.
Experience working within Agile development environments.
A degree in Computer Science (or a related discipline), or equivalent commercial experience.
This is an opportunity to work on innovative software that has a tangible impact on large-scale operational environments
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