SC Cleared Software Developer (.Net)

  • Hays Technology
  • City, Cardiff
  • 24/04/2026
Contractor Information Technology Telecommunications

Job Description

Hays are now looking for an SC Cleared Software Developer for one of our local clients:

  • 600 p/d Inside IR35
  • 1-2 Days onsite, rest is WFH
  • Location is Cardiff
  • Must hold current SC Clearance


You'll join an Agile delivery team, building and supporting secure, high-quality software services used by internal and external users. Working closely with testers, engineers, and researchers, you'll help deliver changes safely while supporting live systems.
What You'll Be Doing

  • Building and maintaining user-facing applications and back-end .NET API services
  • Designing and developing secure, well-structured code using modern engineering standards
  • Collaborating with user researchers to deliver user-centred solutions
  • Supporting junior developers through mentoring and guidance
  • Managing releases via CI/CD pipelines and supporting systems in production


What We're Looking For

  • Experience developing software across front-end and back-end (.NET APIs)
  • Strong problem-solving skills and the ability to design solutions to business needs
  • A security-first mindset with experience embedding controls into designs
  • Comfortable working in Agile teams and collaborating with a range of stakeholders
  • Experience with CI/CD, live service support, and modern engineering practices
  • Holds current SC Clearance



If you are currently SC Cleared you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or please send a copy of your CV to

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