Senior Full Stack Developer (.NET/Next.js) | GDS

Senior Full Stack Developer (.NET/Next.js) | GDS

Posted Today by SR2 - Socially Responsible Recruitment

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£450 Per day
Outside
Remote
London, UK
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Agile Methodology Application Programming Interface (API) Back End (Software Engineering) Continuous Integration and Continuous Delivery Front End (Software Engineering) Full Stack Development Software Development

Summary: The role of Senior Full Stack Developer (.NET/Next.js) involves working with a consultancy partner to transition a public-facing digital service from Private Beta to Public Beta. The position requires collaboration within a multidisciplinary agile team to deliver modern digital services that adhere to GDS standards. The developer will be responsible for both front-end and back-end development, focusing on cloud-hosted applications and secure APIs. This is a fully remote position with a contract lasting until March 2027.

Key Responsibilities:

  • Develop and maintain cloud-hosted web applications
  • Build secure APIs and user-facing functionality
  • Work across Front End and Back End technologies
  • Collaborate closely with Product, Design and Delivery teams
  • Contribute to automated testing and CI/CD pipelines
  • Help deliver accessible digital services to GOV.UK standards

Key Skills:

  • Recent UK Government/GDS delivery experience
  • Delivered a public-facing digital service through Beta within the last 3 years
  • .NET 8/9
  • ASP.NET Core Web APIs
  • Next.js
  • SQL Server
  • Cloud-hosted application development
  • CI/CD pipelines
  • Automated testing
  • Agile delivery experience
  • GOV.UK Service Standard
  • WCAG 2.1 AA accessibility

Salary (Rate): £450/day

City: undetermined

Country: UK

Working Arrangements: remote

IR35 Status: outside IR35

Seniority Level: undetermined

Industry: IT

Detailed Description From Employer:

Senior Full Stack Developer (.NET/Next.js) | GDS | Outside IR35

Rate: c£450/day Outside IR35
Location: Fully Remote (UK)
Contract: August 2026 - Late March 2027

We are supporting a consultancy partner delivering a public-facing digital service moving from Private Beta into Public Beta and are looking for experienced Full Stack Developers to join the team.

You'll work within a multidisciplinary agile team, helping deliver modern, accessible digital services that meet GDS standards and support successful Beta delivery.

What you'll be doing

  • Develop and maintain cloud-hosted web applications

  • Build secure APIs and user-facing functionality

  • Work across Front End and Back End technologies

  • Collaborate closely with Product, Design and Delivery teams

  • Contribute to automated testing and CI/CD pipelines

  • Help deliver accessible digital services to GOV.UK standards


Essential Experience

  • Recent UK Government/GDS delivery experience

  • Delivered a public-facing digital service through Beta within the last 3 years

  • .NET 8/9

  • ASP.NET Core Web APIs

  • Next.js

  • SQL Server

  • Cloud-hosted application development

  • CI/CD pipelines

  • Automated testing

  • Agile delivery experience

  • GOV.UK Service Standard

  • WCAG 2.1 AA accessibility


Desirable

  • Experience supporting Beta Service Assessments

  • Previously worked as part of an established developer pairing

This is an excellent opportunity to join a high-profile digital programme delivering services used by the public.

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