Senior Software Engineer - Office for National Statistics - SEO
Government Digital & Data -
Full-time (Permanent)
£44,050 - £47,121
Published on
14 May 2026
Deadline
21 May 2026
Location: Newport or Titchfield
The Office for National Statistics (ONS) is hiring a Software Engineer to join its Digital Services team, working on high‑impact platforms like Census 2031 and the next generation of ONS websites.
This is an opportunity to work with modern, cloud‑first technologies and help deliver services that support how the UK understands its economy, population and society.
About the role
You’ll join a multidisciplinary team responsible for the ONS Design System, helping teams across the organisation build consistent, accessible and user‑focused digital services.
Working closely with designers, researchers and stakeholders, you’ll play a key role in improving how services are developed and delivered at scale.
What you’ll be doing
- Developing and improving front-end components used across major ONS platforms
- Maintaining and enhancing the ONS Design System
- Collaborating with designers and researchers to deliver user-centred solutions
- Supporting accessibility and performance improvements across services
- Contributing to continuous integration and delivery practices (CI/CD)
- Identifying and prioritising fixes and improvements with product and delivery teams
- Supporting improvements in team processes and ways of working
What we’re looking for
- Experience as a Software Engineer, ideally with front-end focus
- Strong skills in technologies such as JavaScript, HTML, CSS and modern frameworks
- Experience working in Agile environments and modern development lifecycles
- Understanding of CI/CD and test-driven development
- Knowledge of web accessibility standards (WCAG)
- Ability to collaborate with multidisciplinary teams and represent user needs
- Strong problem-solving skills and attention to detail
Interested?
This partner post gives you a quick overview
Click through to the full Civil Service Jobs advert to find out more and apply.
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