Senior .NET Developer

Company: Harvey Nash
Apply for the Senior .NET Developer
Location: Newport
Job Description:

Newport, South Wales (1 day a week onsite)


£47,766 – £58,850 + Technical Allowances of up to £8,695 + Pension (28.97% employer contribution)


Join a major digital transformation programme and help modernise critical government systems used across the UK.


We’re looking for a hands-on Senior Software Developer to play a key role in maintaining, enhancing and modernising enterprise-scale applications. Working within Agile delivery teams, you’ll contribute to the design, development, testing and support of business-critical services while helping shape engineering standards and best practices.


What you’ll be doing



  • Developing and maintaining enterprise-grade applications using .NET/C#

  • Designing and building REST APIs and web services

  • Working within Agile teams using modern DevOps practices

  • Contributing to CI/CD pipelines through Azure DevOps, Azure Pipelines and GitHub

  • Supporting the modernisation of legacy systems and applications

  • Collaborating with stakeholders, product teams and technical specialists

  • Providing technical mentorship and helping drive development standards across the team


What we’re looking for



  • Strong commercial experience with .NET / C#

  • Experience delivering software solutions within Agile environments

  • Knowledge of REST APIs, web services, Azure DevOps, Azure Pipelines and GitHub

  • Understanding of modern software engineering and DevOps principles

  • Strong problem-solving skills and a proactive approach to continuous improvement

  • Ability to influence technical decisions and mentor colleagues


Why apply?



  • Salary of £47,766 – £58,850 + Technical Allowances of up to £8,695

  • Excellent Civil Service pension with 28.97% employer contribution

  • Hybrid working with only 20% office attendance required

  • 25 days annual leave rising to 30 days, plus public and privilege holidays

  • Access to Pluralsight and Microsoft ESI learning platforms

  • Modern engineering environment with strong investment in learning and development

  • Opportunity to contribute to large-scale digital transformation programmes

  • Must be able to attend the Newport, South Wales office a minimum of 20% of the time

  • Must have existing Right to Work in the UK (visa sponsorship is not available for this role)

  • Must have 5 years’ continuous UK residency to support eligibility for SC Clearance


If you’re an experienced .NET developer looking for an opportunity to work on large-scale public sector technology transformation while enjoying excellent benefits and long-term career development, we’d love to hear from you.

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Posted: October 12th, 2026