Staff Software Engineer

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 Staff 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 Staff Software Engineer on a permanent basis. This position can be based in Warwick or 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 Staff Backend 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, defines & enhances standards, and is passionate about delivering high-quality, reliable software solutions. You will also be able to lead technical discussions and mentor members of the team.

What you will do:

• Design and implement scalable, high performance software solutions using deep knowledge of C# and .NET Core, ensuring alignment with long-term business objectives while developing clean, well-structured, and efficient code that is easy to test and maintain.
• Enhance the performance and reliability of distributed systems to guarantee optimal uptime and operational efficiency, while automating configuration, provisioning, and deployment processes to minimise manual intervention.
• Establish and enforce robust security measures, ensuring compliance with relevant industry standards.
• Advocate for and guide the team in Agile and Lean methodologies to foster continuous improvement and deliver value rapidly and iteratively.
• Collaborate effectively with both business and technical stakeholders throughout the product development lifecycle.
• Have a leading contribution to the engineering and architecture standards, procedures, and processes to enhance team efficiency.
• Lead and participate in code reviews and quality assurance activities.
• Provide support and mentorship.
• Document and maintain comprehensive software functionality to support knowledge sharing and operational continuity.

About you:

• Deep experience in C# and .NET Core, with a solid understanding of backend development principles.
• Deep experience with microservices and event-driven architectures alongside RESTful APIs.
• Deep experience with Azure cloud services including Azure Entra and general authentication/authorisation practices.
• Deep skills in containerisation, automation, and orchestration tools (e.g., Docker).
• Deep experience with CI/CD pipelines and modern DevOps practices including Infrastructure As Code (IaC) and observability such as metrics, monitoring, traces and alerting.
• Test-first mindset and able to lead other engineers on what good looks like regarding unit/integration testing, end-to-end (E2E) testing and contract testing with libraries and frameworks such as XUnit, Playwright and PACT.
• Deep experience with Lean software development methodologies (e.g., Agile, SAFe).
• Good knowledge of security frameworks and compliance standards (ISO 27001, GDPR).
• Deep analytical mindset, problem-solving skills with a proven ability to troubleshoot complex issues and deliver fast, effective solutions, in a fast-paced environment.

What you will get:
Competitive Salary: circa £63,000 – £74,000 per annum (based on capability, and experience)
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 5th February. 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.

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.

Diversity, Equity and Inclusion
National Grid is an equal opportunity employer that values a broad diversity of talent, knowledge, experience and expertise. We foster a culture of inclusion that drives employee engagement to deliver superior performance to the communities we serve. National Grid is proud to be an affirmative action employer. We encourage minorities, women, individuals with disabilities and protected veterans to join the National Grid team.

At National Grid, we work towards the highest standards in everything we do, including how we support, value and develop our people. Our aim is to encourage and support employees to thrive and be the best they can be. We celebrate the unique differences people bring into our organisation, and welcome and encourage applicants with diverse experiences and backgrounds, and offer flexible and tailored support, at home and in the office.

Our goal is to drive, develop and operate our business in a way that results in a more inclusive culture. All employment is decided on the basis of qualifications, the innovation that comes with having diverse teams and business need. We are committed to building a workforce that is representative of the communities we serve and provide a working environment where everyone feels valued, respected, fairly treated, and able to reach their full potential.