Job summary Technology plays a vital role in supporting the schemes that are helping drive the UKs transition to greener energy, and at Ofgem, were seeking a Senior Software Developer to help build and evolve the applications that underpin this work. Ofgem is Great Britains independent energy regulator. Were at the forefront of change across the sector, driving toward Net Zero whilst protecting consumers, especially vulnerable people. Were offering a permanent opportunity within our Digital Development team where youll play a vital role in the development and upkeep of digital services that support major green energy and social schemes operating across the energy sector. Youll have the chance to work on meaningful digital products that directly support renewable energy and wider consumer-focused initiatives, helping shape how applications are developed, improved and maintained across the division. Alongside mentoring junior colleagues, youll work with a range of talented developers, technical leads and multidisciplinary colleagues within our supportive and highly collaborative environment. Youll bring significant experience developing data-driven web applications using Microsoft technologies, including C#, Entity Framework Core, SQL Server and Microsoft Azure. Alongside strong cloud and microservices knowledge, youll have experience applying modern software design principles, supporting scalable application development and contributing to high-quality engineering practices. Strong communication skills and the ability to support and guide others within a collaborative team environment will also be essential. In return, youll have the opportunity to contribute to digital services that support major renewable energy and social schemes across the UK, applying your expertise to work that is both meaningful and technically engaging. Youll join a forward-looking environment where innovation, collaboration and development are actively encouraged. We have a critical purpose to ensure the systems and digital services supporting renewable energy and social schemes remain effective, secure and fit for the future. Join us and help build the applications that support that mission. Read on and find out more. Job description Key Responsibilities Develop, maintain, and support key Ofgem scheme applications. Create and maintain technical documentation for business applications. Support the Technical Lead in technical decisions and team leadership. Mentor junior colleagues to foster their professional development. Manage workloads and prioritize tasks as Work Manager when needed. Suggest and implement improvements to the development process. Collaborate with cross-functional teams to deliver user-centric solutions. Ensure adherence to Government Digital Service (GDS) standards. Key Outputs and Deliverables Ensuring that products developed internally and externally are technically and functionally suitable for Ofgem. Develop high quality, secure software as part of a team. Contribute to, and advancing ideas for continuous improvement. Champion best practices in Software Development. Person specification Essential Criteria Significant demonstrable knowledge and experience in developing data-driven web applications using Microsoft technologies, including proficiency in C# for creating robust and scalable web applications, expertise in using Entity Framework Core for efficient data access and manipulation, strong experience in designing, querying, and managing databases with SQL Server, and proficiency in deploying, managing, and scaling applications on Microsoft Azure. (Lead Criteria) Excellent communication and interpersonal skills, with the ability to effectively communicate with team members, stakeholders, and clients. Comfortable deputizing for the Technical Lead when required, with the ability to step into a leadership role, manage teams, and ensure project delivery in the absence of the Technical Lead. (Lead Criteria) Knowledge and experience in applying common design patterns to solve software design problems, proficiency in writing and executing unit tests to ensure code quality and reliability, and a strong understanding and application of SOLID principles to create maintainable and scalable software. Demonstrable experience with cloud technologies, including designing, developing, and deploying microservices-based architectures, proficiency in using containerization technologies such as Docker and Kubernetes, and broad knowledge of cloud services and platforms with a focus on scalability, security, and performance. Ability to guide, mentor, and support junior team members in their professional development, fostering a collaborative and growth-oriented environment within the team. Behaviours We'll assess you against these behaviours during the selection process: Making Effective Decisions Changing and Improving Developing Self and Others Technical skills We'll assess you against these technical skills during the selection process: You will be asked to conduct a technical test during your interview. Details of the test will be provided at the start of your interview. Benefits Alongside your salary of 49,452, OFGEM contributes 14,326 towards you being a member of the Civil Service Defined Benefit Pension scheme. Find out what benefits a Civil Service Pension provides. Ofgem can offer you a comprehensive and competitive benefits package which includes; 30 days annual leave after 2 years; Excellent training and development opportunities; The opportunity to join the generous Civil Service pension which also includes a valuable range of benefits; hybrid working (currently 1 day a week in the office but this is kept under review), flexible working hours and family friendly policies. Plus lots of other benefits including clean and bright offices based centrally, engaged networks and teams and an opportunity to contribute to our ambitious and important targets of establishing a Net Zero energy system by 2050. This exciting blend of professional challenge and personal reward identifies career opportunities at Ofgem as something to get excited about. Things you need to know Artificial intelligence Artificial intelligence can be a useful tool to support your application, however, all examples and statements provided must be truthful, factually accurate and taken directly from your own experience. Where plagiarism has been identified (presenting the ideas and experiences of others, or generated by artificial intelligence, as your own) applications may be withdrawn and internal candidates may be subject to disciplinary action. Please see our candidate guidance (opens in a new window) for more information on appropriate and inappropriate use. Selection process details This vacancy is using Success Profiles (opens in a new window), and will assess your Behaviours, Experience and Technical skills. When you press the Apply now button, you will be asked to complete personal details (not seen by the sift panel), your career history and qualifications. You will then be asked to provide a 1250 word personal statement evidencing how you meet the essential skills and capabilities listed in the role profile. Please ensure you demonstrate clearly, within your supporting statement, how you meet each of the criteria listed in the role profile. The personal information we have collected from you will be shared with Cifas who will use it to prevent fraud, other unlawful or dishonest conduct, malpractice, and other seriously improper conduct. If any of these are detected, you could be refused certain services or employment. Your personal information will also be used to verify your identity. Further details of how your information will be used by us and Cifas, and your data protection rights, can be found by [ https://www.cifas.org.uk/fpn ]. At Ofgem, we expect our staff to carry out their roles with honesty, fairness and openness. They should follow the Civil Service code and be free from any influence or bias. We are committed to making sure interests are recognised, declared and managed appropriately so that we can fulfil our duties as an energy regulator. Our Conflicts of Interest policy outlines the types of interests Ofgem staff must declare before onboarding, and the rules they must follow throughout employment so that we can clearly demonstrate that our decisions are not influenced by private interests. Please note, this role is being recruited to in Ofgem. During 2027, it is expected that this role will move department as part of the Warm Homes Plan. The home department or organisation will be confirmed during 2026. The move between departments will be managed in line with the relevant staff transfer regulations. Feedback will only be provided if you attend an interview or assessment. Security Successful candidates must undergo a criminal record check. People working with government assets must complete baseline personnel security standard (opens in new window) checks. Nationality requirements This job is broadly open to the following groups: UK nationals nationals of the Republic of Ireland nationals of Commonwealth countries who have the right to work in the UK nationals of the EU, Switzerland, Norway, Iceland or Liechtenstein and family members of those nationalities with settled or pre-settled status under the European Union Settlement Scheme (EUSS) (opens in a new window) nationals of the EU, Switzerland, Norway, Iceland or Liechtenstein and family members of those nationalities who have made a valid application for settled or pre-settled status under the European Union Settlement Scheme (EUSS) individuals with limited leave to remain or indefinite leave to remain who were eligible to apply for EUSS on or before 31 December 2020 Turkish nationals, and certain family members of Turkish nationals, who have accrued the right to work in the Civil Service Further information on nationality requirements (opens in a new window) Working for the Civil Service The Civil Service Code (opens in a new window) sets out the standards of behaviour expected of civil servants. We recruit by merit on the basis of fair and open competition, as outlined in the Civil Service Commission's recruitment principles (opens in a new window). The Civil Service embraces diversity and promotes equal opportunities. As such, we run a Disability Confident Scheme (DCS) for candidates with disabilities who meet the minimum selection criteria. The Civil Service also offers a Redeployment Interview Scheme to civil servants who are at risk of redundancy, and who meet the minimum requirements for the advertised vacancy. Diversity and Inclusion The Civil Service is committed to attract, retain and invest in talent wherever it is found. To learn more please see the Civil Service People Plan (opens in a new window) and the Civil Service Diversity and Inclusion Strategy (opens in a new window). Apply and further information This vacancy is part of the Great Place to Work for Veterans (opens in a new window) initiative. The Civil Service welcomes applications from people who have recently left prison or have an unspent conviction. Read more about prison leaver recruitment (opens in new window). Once this job has closed, the job advert will no longer be available. You may want to save a copy for your records. Contact point for applicants Job contact : Name : Lewis Buckley Email : recruitment@ofgem.gov.uk Recruitment team Email : recruitment@ofgem.gov.uk Further information Appointment to the Civil Service is governed by the Civil Service Commissions Recruitment Principles. You have the right to complain if you feel there has been a breach of these Recruitment Principles. In the first instance, you should raise the matter directly via recruitment@ofgem.gov.uk. If you are not satisfied with the response, you may bring your complaint to the Commission. For further information on bringing a complaint to the Civil Service Commission, please visit their website. Attachments Senior Software Developer, Role Profile Opens in new window (pdf, 181kB) Senior Software Developer, Candidate Pack Opens in new window (pdf, 1391kB) Terms and Conditions April 2025 Opens in new window (pdf, 366kB) Apply now