Software Engineer jobs in United Kingdom

Full-time (Permanent) London £28,390 - £33,936 National £25,854 - £30,850
Published on 30 July 2025 Deadline 11 August 2025

Successful candidates may be based in any of our office locations – Cardiff, Glasgow, or London. We especially welcome applicants from Cardiff and Glasgow.

At the forefront of protecting energy consumers, Ofgem is building smarter, greener technology to power a low-carbon future. We’re looking for a Junior Software Developer to join us and help combat the challenges of legacy tech and drive the evolution of our cloud-based digital services.

Ofgem is Great Britain’s independent energy regulator. We’re at the forefront of change across the energy sector, driving toward Net Zero whilst protecting energy consumers, especially vulnerable people.

We’re offering a permanent opportunity that’s ideal for someone looking to kick-start or reshape their career in software development. This role offers experience across a wide range of technologies and applications, from working with legacy systems to contributing to modern cloud-based platforms. From day one, you’ll join a collaborative digital team, gaining exposure to real-world projects.

You’ll have the chance to work alongside experienced developers, learning best practices in web development, security, and fault diagnosis. With opportunities to contribute to everything from debugging User issues, to supporting with development of new features, to fixing security issues, this is a role where you’ll make a meaningful impact and gain valuable technical skills along the way.

We’re looking for someone who’s naturally curious and keen to learn. You might be a graduate, a career changer, or someone returning to tech, but what matters is your enthusiasm, your willingness to solve problems, and your ability to work well in a team. If you have a basic understanding of C#.NET, SQL, or debugging tools, we’d love to hear from you.

You’ll be part of a relaxed, welcoming team made up of people from varied backgrounds with different working styles - authenticity and collaboration are at the heart of how we work. Based in Glasgow, London or Cardiff, we offer hybrid working, a supportive environment and opportunities to grow your skills in a way that suits your ambitions.

Our Digital Delivery Team have a critical purpose to build and maintain digital solutions that help us on our vital mission to protect consumers and accelerate Net Zero. In this role, you’ll be part of that mission, contributing to systems that support environmental programmes and energy reform across the UK.

Read on and find out more.

Key Responsibilities

• Monitor site uptime and site reliability and take necessary action.
• Stewardship and ownership of work items.
• Work from support tickets to diagnosis of fault and then action or refer to appropriate 3rdline teams.
• Write code according to standards, and security review tools.
• Meet individual and contribute to the Applications Teams SLAs.
• Onboard and mentor new colleagues to the team.
• Working with project managers, technical leads, and subject matter experts to develop, maintain, and support, key Ofgem scheme applications.
• Complete personal training as per learning objectives relating to technical skills with the objective of becoming a full stack developer and undertake greenfield development of Ofgem schemes.

Key Outputs and Deliverables

• Triage of service requests and/or Incidents by replication and in turn identifying the appropriate solution.
• Maintain Service Request tickets and items on Azure DevOps backlog.
• Maintain documentation relating to the Application Support Team and contribute to the wider Digital Development Teams documentation store in various locations, such as the Azure wiki, Confluence, SharePoint.
• Identify improvements in the Applications Support work area.
• Supporting the Development Team within an agile project setting, delivering work items accordingly and meeting sprint timelines.
• Working from the AzureBacklog to complete task relating to SonorCloud, Technical Debt as well as investigation work as directly by the Technical Lead or Product Manager.
• Actively participating in daily catchups, refinement meetings, sprint planning, retrospectives and show & tells.
• Collaborate with colleagues across Ofgem. In particular:

- Digital Development Team (of which Applications Support is a part)

- Digital Services

- Digital Project Management Office & Delivery teams

- Delivery & Schemes

• Essential skills and experience in the following technologies: (Lead criteria)

- Microsoft .NET (C#)
- SQL server
- ASP.NET
- Debugging and fault diagnosis

• Knowledge or experience in any of the following:

- Microservices and API development
- MVC
-Microsoft Azure
- SOLID techniques
- Continuous integration
- Version control
- Entity framework

• Able to demonstrate the following skills:

- Ability to learn and be trained on the job
- Strong work planning and time management
- Managing of Problems, incidents and development tasks

• Some experience of working within a development team using debugging skills and tools.
• Writing unit and integration tests, and/or unit testing frameworks.

We'll assess you against these behaviours during the selection process: