Infrastructure Engineer

Infrastructure Engineer

Location:

Watford (Hybrid)

Salary:
Competitive + Bonus + Excellent Benefits

Help build the technology behind some of the UK's best-loved jewellery brands. At Signet Jewelers, we are home to iconic brands including H. Samuel and Ernest Jones. Behind every unforgettable customer experience is a modern, resilient technology platform – and we’re investing heavily in its future.

• Provide 3rd line infrastructure support and deliver ongoing improvements across on‑premise and cloud environments.
• Support and administer UK infrastructure across servers, cloud platforms, and networking.
• Investigate and resolve complex 3rd line technical issues.
• Design and implement proactive monitoring and alerting to prevent future incidents.
• Manage Windows Server environments, Active Directory, Group Policy, and core infrastructure services.
• Support our AWS and Azure cloud platforms as we continue to migrate services to the cloud.
• Work closely with internal IT teams and external technology partners to deliver infrastructure improvements.
• Ensure all infrastructure changes meet security, compliance, and governance standards.
• Maintain clear technical documentation and automation scripts to improve operational efficiency.
• Participate in an on‑call rota and provide out‑of‑hours support during key retail trading periods.

• Windows Server
• Active Directory & Group Policy
• Office 365
• AWS (ECS, Amazon MQ, RDS, S3, Work spaces, VPCs)
• Microsoft Azure
• Power Shell
• Meraki networking
• SQL Server
• Solar Winds (or similar monitoring platforms)
• Remote Access technologies

We’re looking for someone who naturally feels curious, enjoys learning new technologies, and isn’t afraid to take ownership.

• Strong experience administering Windows Server environments.
• Good knowledge of Active Directory, Group Policy, and Windows infrastructure.
• Excellent troubleshooting and technical problem‑solving skills.
• Experience monitoring and supporting enterprise infrastructure.
• Knowledge of cloud platforms such as AWS and/or Azure.
• Experience creating technical documentation and automation.
• Strong communication skills with the ability to explain technical issues clearly.
• A proactive, "can do" approach and confidence to work independently when needed.

It would be great if you also have experience with:

• Power Shell scripting
• Office 365 administration
• Networking
• Linux
• AWS services such as ECS, MQ, and web applications
• Solar Winds or similar monitoring platforms

• Takes ownership and delivers results.
• Enjoys solving complex technical problems.
• Thinks analytically and proactively.
• Works collaboratively across teams.
• Stays calm under pressure.
• Has a genuine passion for technology and continuous learning.

Signet Jewelers (H. Samuel & Ernest Jones) is an equal opportunity employer committed to diversity and inclusion. We welcome applications from all sections of the community and are proud to have achieved Disability Confident Committed status (Level 1). All employment is decided on the basis of qualifications, merit and business need.