Infrastructure Engineer

Salary: £50,000 - 90,000 per year

Requirements

• 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 the confidence to work independently when needed
• Experience with PowerShell scripting
• Office 365 administration experience
• Networking experience
• Linux experience
• Experience with AWS services such as ECS, MQ, and web applications
• Experience with SolarWinds or similar monitoring platforms

Responsibilities

• We provide 3rd line infrastructure support across our on-premise and cloud environments
• We support and administer our UK infrastructure across servers, cloud platforms, and networking
• We investigate and resolve complex 3rd line technical issues
• We design and implement proactive monitoring and alerting to prevent future incidents
• We manage Windows Server environments, Active Directory, Group Policy, and core infrastructure services
• We support our AWS and Azure cloud platforms as we continue to migrate services to the cloud
• We work closely with internal IT teams and external technology partners to deliver infrastructure improvements
• We ensure all infrastructure changes meet security, compliance, and governance standards
• We maintain clear technical documentation and automation scripts to improve operational efficiency
• We participate in an on-call rota and provide out-of-hours support during key retail trading periods

Technologies

• AWS
• Active Directory
• Azure
• Cloud
• Support
• Linux
• Office 365
• PowerShell
• Security
• Web
• Windows
• DevOps
• SQL

More

We are Signet Jewelers, home to H. Samuel and Ernest Jones, with more than 270 stores across the UK and Republic of Ireland and part of the worlds largest retailer of diamond jewellery with approximately 2,800 stores. We offer a competitive salary, bonus, generous product discounts, retirement savings plans, immediate life assurance, at least 22 days holiday increasing with service, recognised qualifications, study support, structured career progression, health and wellbeing support, financial wellbeing support, Give As You Earn, and Real Rewards discounts. This Infrastructure Engineer role is based in Watford on a hybrid basis, and you will join our UK IT team in a collaborative environment where we are investing in a cloud‑first future, modernising our infrastructure, and valuing initiative, continuous improvement, and professional development.