Senior Infrastructure Engineer

About the job

Successful candidates may be based in any of our office locations – London, Cardiff or Glasgow. We especially welcome applicants from Cardiff and Glasgow. (20% hybrid, 1 day per week)

Job summary

Across government, modern infrastructure underpins the delivery of secure, resilient and scalable digital services. As organisations transition from legacy estates to cloud-first environments, the need for robust infrastructure capability—combining reliability, automation and security—has never been greater. Ofgem plays a vital role in the UK’s energy system, protecting consumers and enabling a more secure, fair and sustainable energy future, and strong infrastructure services are fundamental to delivering this mission.

Ofgem is on an ambitious transformation journey. Within the Digital, Data and Security Services (DDSS) directorate, we are modernising our core infrastructure, evolving from legacy environments to hybrid and cloud-native platforms. This includes strengthening our Azure capability, improving automation and embedding consistent standards across infrastructure delivery.

As a Senior Infrastructure Engineer, you will play a key role in delivering and maintaining Ofgem’s infrastructure services. You will work across legacy, hybrid and cloud environments, ensuring systems are reliable, secure and aligned with enterprise standards. You will combine hands-on engineering with technical leadership, supporting colleagues, influencing design decisions and driving continuous improvement across the infrastructure estate.

This is a technically focused role within a fast-paced and evolving environment, offering the opportunity to work on both operational services and transformation initiatives.

Job description

You will be responsible for:

• Delivering and supporting Azure Legacy, Azure Hybrid and Azure Cloud infrastructure environments, ensuring reliability, performance and security across services.
• Working with architects and delivery teams to translate designs into operational infrastructure solutions aligned with enterprise standards.
• Providing technical leadership and acting as an escalation point for complex infrastructure issues.
• Leading troubleshooting and root cause analysis, implementing long-term solutions to improve system stability and resilience.
• Developing automation and configuration management approaches using tools such as PowerShell, Terraform and Azure CLI.
• Supporting the adoption of modern engineering practices, including Infrastructure as Code, CI/CD and monitoring solutions.
• Managing infrastructure components across their lifecycle, including patching, backup, disaster recovery and compliance activities.
• Collaborating with vendors and third-party providers, ensuring effective delivery of infrastructure services.
• Contributing to continuous improvement initiatives across infrastructure, tooling and operational processes.

We are looking for:

A technically strong infrastructure professional who can operate effectively across both legacy and modern cloud environments. You will bring hands-on experience in Azure and hybrid infrastructure, alongside a proactive approach to problem-solving and service improvement.

You may come from an infrastructure, cloud engineering or DevOps background, but you will demonstrate:

• Strong experience managing Azure and hybrid infrastructure environments
• Experience with automation tools and scripting, such as PowerShell, Terraform or Azure CLI
• A solid understanding of infrastructure security, networking and operational best practice
• Experience troubleshooting complex systems and delivering sustainable improvements
• The ability to collaborate with technical and non-technical stakeholders across teams

A relevant certification such as Microsoft Certified: Azure Administrator Associate is expected.

Experience mentoring colleagues and contributing to capability development would be beneficial.

This is an opportunity to play a key role in modernising Ofgem’s infrastructure landscape. You will help ensure that core systems are resilient, scalable and fit for the future, supporting the organisation’s digital transformation and enabling delivery of critical services.

Person specification

Essential Criteria

• Demonstrable experience working within infrastructure engineering teams supporting both legacy systems and modern cloud-native platforms, including exposure to Kubernetes-based solutions (Lead Criteria).
• Strong hands-on experience implementing and supporting infrastructure in Microsoft Azure, including core areas such as networking and security (Lead Criteria).
• Practical experience contributing to good DevOps practices, supporting CI/CD pipelines and infrastructure automation through tools such as Terraform.
• Previous experience maintaining operational stability while contributing to continuous improvement, ensuring infrastructure solutions align with organisational standards.
• Demonstratable ability to work across technical teams, vendors, and stakeholders to deliver reliable and scalable infrastructure services.

Holds or can obtain the following certifications or equivalent within 6 months:

• Microsoft Certified: Azure Administrator Associate

Desirable Criteria

• Coaching and mentoring junior Infrastructure engineers.

Behaviours

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

• Making Effective Decisions
• Working Together
• Delivering at Pace

Technical skills

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

• You will also be asked to prepare a presentation. Full details of the presentation will be included in the invitation to 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 (opens in a new window).

Ofgem can offer you a comprehensive and competitive benefits package which includes; up to 30 days annual leave. Excellent training and development opportunities. The opportunity to join the Civil Service pension arrangements which include a valuable range of benefits. Flexible working hours and family friendly policies. Restaurant and subsidise gym (London only). Interest free season ticket loan.

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.