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Full-Stack .NET Developer

Montash
Department:iOS Developer
Type:REMOTE
Region:UK
Location:United Kingdom
Experience:Mid-Senior level
Estimated Salary:£60,000 - £90,000
Skills:
C#.NETREACTTYPESCRIPTSQL SERVERREST APIS
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Job Description

Posted on: June 19, 2026

Role: Full-Stack .NET Developer

Clearance: Active SC Clearance required

Location: Remote, with occasional meetings if required

Start Date: ASAP / Flexible

IR35 Status: Inside IR35

Interview Timeline: 1 Stage, technical chat

We are supporting a security-cleared client on a secure software delivery project within a highly regulated environment. You will join a small, collaborative team working closely with users and stakeholders to design, build, test, and support enterprise software solutions.

This role is ideal for a hands-on full-stack developer with strong experience across C#, .NET, React, TypeScript, SQL Server, REST APIs, testing, and on-prem enterprise delivery.

What You’ll Be Doing

  • Designing, developing, testing, and supporting secure full-stack applications
  • Building robust backend services using C# and .NET
  • Developing frontend functionality with React and TypeScript
  • Working with SQL Server databases and REST API integrations
  • Collaborating closely with users, stakeholders, and technical teams
  • Supporting delivery within an on-prem enterprise environment
  • Ensuring solutions are secure, reliable, well-tested, and fit for purpose

What We’re Looking For

  • Active SC Clearance
  • Strong commercial experience as a Full-Stack .NET Developer
  • Excellent C# and .NET development experience
  • Strong frontend experience with React and TypeScript
  • Good SQL Server experience
  • Experience designing and integrating REST APIs
  • Solid testing experience across unit, integration, or functional testing
  • Proven experience delivering software in on-prem enterprise environments
  • Comfortable working in secure, regulated, or highly controlled environments

This is a great opportunity to support an important secure delivery programme while working remotely with a collaborative technical team.

Please apply with your latest CV, fill in qualifciation questions and WE will reach out directly.

Originally posted on LinkedIn

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