Principal Developer - OFGEM - G6

Full-time (Permanent) London £65,835 - £86,547 National £61,446 - £86,547
Published on 26 January 2026 Deadline 2 February 2026

Location

Cardiff, Glasgow, London

About the job Job summary

Our Delivery & Schemes Directorate is our delivery arm and manages a number of high-profile environmental programmes. It's a fast-paced and dynamic place to work, and you can expect to be involved in ground-breaking work. Our flexible working career opportunities are incredibly varied, so we are committed to recruiting talented people from a diverse range of professional and personal backgrounds - bringing different perspectives and experiences to our work. Our Digital Development team provides the high-quality software design, development and support services that underpin our environmental and social energy schemes. As Principal Developer you'll lead a small team of developers who work on applications that support scheme requirements. You'll work with Software Developers and Automation Testers to ensure that software products are ideally suited to business needs, and to evaluate and implement new technologies that can support business improvement. You'll have an important role to play in supporting and advancing our digital technology strategy, while ensuring that your team benefits from excellent support, development and career progression opportunities. We're looking for someone with a good range of experience that will enable them to add value quickly in this role, and previous people management experience would definitely be desired. You'll need to offer excellent knowledge as a Microsoft Software Developer, with a good understanding of technologies and practices such as:

• Microsoft .NET (C#)
• SQL Server Development
• ASP.Net MVC
• Test Driven Development (TDD)
• Continuous Integration, build and deployment automation
• Object-Oriented Design
• Development techniques and design patterns
• Agile Methodologies
• Relational database design
• SQL Stored procedures
• Unit Test Frameworks and Tools (Nunit, Moq, etc)
• Version Control tools and workflows (TFS, GIT)

SC is required for this role. Information and eligibility guidance can be found here: SC - Guidance Pack for Applicants - GOV.UK

Key Responsibilities

• Lead multi-disciplinary teams in a specific work area in the context of operating in a Professions and Flexible Resourcing model.
• Plan, oversee and deliver a set of work deliverables on time and to a high standard through effective project management and support of multidisciplinary team members.

Delivery of set of team deliverables, and managing and co-ordinating successful outcomes across team members and collaborating teams:

• Sets clear and transparent work objectives, milestones and success metrics at team and individual level to oversee and co-ordinate successful team outcomes.
• Collaborates closely with other teams to manage interdependencies, risks and resourcing to support portfolio delivery.
• Demonstrates effective diversity and inclusive team management within their team and the wider organisation.

Key Outputs and Deliverables

• Ensuring that software products developed internally and externally are technically and functionally suitable for Ofgem.
• Ensuring that Software Developers and Automation Testers are working to up to date best practices and advancing professionally in a clear career path.
• Delivering regular software development iterations through the team for products, working in collaboration with Product Managers, Delivery Managers, Business Analysts, Solution Architects, Infrastructure, Information Security, User Stakeholders, and external delivery partners.
• Contributing to and advancing the digital technology strategy.
• Contributing to and advancing ideas for continuous improvement, and quality improvement opportunities
• Ensuring that products are supported effectively with 3rd line support, working in collaboration with the Applications Support team.

Person specification

• Substantial expertise as a Microsoft Software Developer with essential skills and proven expertise in the following technologies: (LEAD)
• SQL Server Development
• ASP.Net MVC
• Test Driven Development (TDD)
• Continuous Integration, build and deployment automation.
• Development techniques and design patterns
• Agile Methodologies
• SQL Stored procedures
• Unit Test Frameworks and Tools (Nunit, Moq, etc)
• Version Control tools and workflows (Azure DevOps, GIT).
• Proven aptitude for leadership, e.g., through formal or informal management/mentoring of others.
• Extensive experience working collaboratively with diverse colleagues.
• Knowledge and experience of: Development techniques and design patterns Agile Methodologies SQL Stored procedures Unit Test Frameworks and Tools (Nunit, Moq, etc) Version Control tools and workflows (Azure DevOps, GIT).
• A good working knowledge of some of the following technologies: Microservices .NetCore Entity Framework DevOps.
• Experience of building and supporting the teams delivering the work including effective scoping of work and setting of clear responsibilities.