We are seeking an experienced Senior Infrastructure Engineer to support a secure and highly regulated environment. The role involves designing, building, administering, and supporting enterprise infrastructure services that underpin critical operational systems.
Working within a small specialist team, you will provide full lifecycle support across infrastructure platforms, ensuring services are secure, resilient, and delivered in line with strict operational requirements.
This role requires strong technical troubleshooting skills, experience in secure or air-gapped environments, and the ability to operate across 1st to 3rd line support.
Contract Details
Role: Senior Infrastructure Engineer
Location: Salisbury (Full-time onsite)
Duration: 12 months
IR35: In Scope
Rate: £569/day (Umbrella)
Clearance: Active DV required
Nationality: Sole UK Nationals only
Key Responsibilities
Design, implement, administer, and support secure infrastructure services
Manage Windows Server and desktop environments
Support compute, storage, networking, and virtualisation platforms
Administer Active Directory, Group Policy, DNS, and DHCP
Support Hyper-V virtualisation environments
Manage Microsoft SQL Server, including failover clustering
Carry out WSUS patching and Windows updates
Support secure and air-gapped environments
Provide 1st–3rd line infrastructure support
Troubleshoot and resolve infrastructure and system issues
Maintain technical documentation to operational standards
Support infrastructure upgrades, refreshes, and deployments
Monitor performance and proactively resolve issues
Essential Skills & Experience
* Strong Windows Server and desktop support experience
* Active Directory, Group Policy, DNS, DHCP administration
* WSUS patch management
* Hyper-V administration
* SQL Server administration and clustering
* Experience across 1st–3rd line support
* Experience in secure or air-gapped environments
* Strong troubleshooting and root cause analysis skills
* Ability to work independently and in small teams
* Strong documentation skills
Desirable Skills
* Linux (RHEL preferred)
* Exchange / DAG environments
* SAN storage administration
* File and print clustering
* PKI and Smartcards
* Thin client environments
* Trellix / McAfee security tooling
* Cisco networking
* VOIP / VTC support
* Hardware build and deployment
Candidate Profile
Proactive and solutions-focused
Strong analytical and troubleshooting ability
Experienced in secure environments
Clear communicator with strong documentation skills
Comfortable in complex enterprise infrastructure settings
Stable career history in infrastructure roles
Salary description
£500.00 - £569.00 per day