About us

At National Grid, our commitment to a cleaner, greener energy future is powered by the dedication and ingenuity of our people. Join our team as Senior Backend Software Engineer and be a part of something bigger—where your unique skills and passions can make a real difference. Together, we are superpowered.

National Grid is hiring a Senior Backend Software Engineer on a permanent basis. This position is based in Warwick. You will also have the opportunity to work from our co-working space in London. This role is designated as hybrid, with an expectation of 3-4 days per month in the office. Requirements may vary based on business needs and company policy.

About The Role

This is a fantastic opportunity for a skilled and forward-thinking Senior Backend Software Engineer to play a key role in designing, building, and managing cutting-edge cloud-based software platforms. You’ll do this by collaborating closely with other software engineers, product owners, product designers, technical leads and senior engineering manager to create suitable solutions that transform the organisation, which also align to our engineering and architecture standards.

This role is ideal for someone who thrives in a collaborative environment, enjoys solving complex technical challenges, and is passionate about delivering high-quality, reliable software solutions. You will also be able to lead technical discussion and mentor junior members of the team.

What You'll Do

• Design and build scalable, high‑performance software using C# and .NET, creating clean, testable code that’s built to last.
• Strengthen the performance, reliability, and uptime of distributed systems through smart automation and streamlined deployment.
• Embed strong security practices into everything you build, ensuring alignment with industry standards.
• Champion Agile and Lean ways of working, delivering value quickly through continuous improvement.
• Collaborate closely with business and technical stakeholders to bring ideas to life end‑to‑end.
• Support and mentor junior engineers, contribute to engineering standards, take part in code reviews, and help keep documentation clear and up to date

About You

• Strong experience with C# and .NET Core, with solid backend engineering fundamentals
• Hands‑on building microservice and event‑driven architectures, including RESTful APIs
• Experience working in Azure, including Entra and modern authentication/authorisation practices
• Skilled in containerisation and automation (e.g. Docker)
• Practical experience with CI/CD pipelines, DevOps, Infrastructure as Code, and observability (monitoring, metrics, tracing, alerting)
• Test‑first mindset, with experience across unit, integration, E2E, and contract testing (e.g. XUnit, Playwright, PACT)
• Comfortable working in Lean/Agile environments (e.g. Agile, SAFe), with an understanding of security and compliance standards (ISO 27001, GDPR)
• A strong problem‑solver and clear communicator, able to thrive in fast‑paced environments and collaborate effectively across teams

What You'll Get

A competitive salary between £55,208 - £75,000 per annum – dependent on capability

Additional benefits:

• A competitive contributory pension scheme where we will double match your contribution to a maximum company contribution of 12%
• You will receive a bonus based on personal and company performance
• Flexible benefits such as a cycle scheme, share incentive plan, technology schemes
• Access to apps such as digital GP service for round the clock access to GP video consultations and NHS repeat prescriptions, wellbeing app to support your health and fitness
• Access to Work + Family Space, providing support and resources for work and family life, including paid emergency childcare and eldercare

More Information

The closing date for this vacancy is 6th April. However, we encourage candidates to submit their applications as early as possible and not to wait until the published closing date. National Grid’s recruitment periods can and may vary. We reserve the right to remove this advert or close it to further applications at any point during the recruitment process.

#LI-MB2 #LI-HYBRID

We value diversity and are committed to creating an inclusive workplace for all. We welcome applications from all suitably qualified candidates – we make appointments purely on merit, assessed against objective selection criteria. We support flexible working and will make reasonable adjustments throughout the recruitment process should you have any physical or mental impairment which may affect your ability to participate in the process.

**Please note that in most cases, National Grid is unable to offer sponsorship for employment under the UK points-based immigration system. As such, applicants must have the legal right to work in the UK without requiring sponsorship now or in the future under the UK points-based immigration system. However, in exceptional circumstances where there is a clear and demonstrable need for specialist skills that cannot be sourced from the local labour market, National Grid may consider offering sponsorship. All applications are welcome from candidates who meet these requirements, regardless of race, nationality, or ethnic origin.**