Infrastructure Engineer

Gattaca; Greater London; Hybrid; GBP 83,000 - 120,000; Full time

Job summary

Gattaca in London is seeking an experienced Infrastructure Engineer to support and enhance a complex enterprise environment. You will work across networking, VMware, Microsoft 365, Active Directory, cloud connectivity and infrastructure projects to deliver resilient and secure solutions.

The role is contract-based and London-based with hybrid working (3–4 days onsite). Occasional travel may be required as projects demand.

Qualifications

• Hands-on experience with enterprise networking, routing, switching, VLANs, and firewalls.
• Expertise in VMware ESXi and storage technologies.
• Experience with Microsoft 365, Exchange Online and Active Directory.
• Knowledge of Azure networking and ExpressRoute.
• Ability to document infrastructure and troubleshoot complex environments.

Responsibilities

• Support and improve complex enterprise infrastructure across on-prem and cloud.
• Own project delivery and BAU activities ensuring resilience and security.
• Collaborate with networking, virtualization, and identity teams.
• Produce clear documentation and runbooks for operations.

Skills

Enterprise networking

VMware ESXi

Microsoft 365

Active Directory

Azure networking

Infrastructure docs

Tools

None

Job description

We're looking for an experienced Infrastructure Engineer to support and enhance a complex enterprise environment. You'll work across networking, VMware, Microsoft 365, Active Directory, cloud connectivity, and infrastructure projects, helping deliver resilient and secure solutions.

Key skills:

• Enterprise networking (routing, switching, VLANs, firewalls)
• VMware ESXi & storage technologies
• Microsoft 365, Exchange Online & Active Directory
• Azure networking / ExpressRoute
• Infrastructure documentation and troubleshooting

Desirable:

• Palo Alto, Fortinet, SD-WAN, Veeam, Aruba, Meraki, CCNP, Fortinet or Microsoft certifications.

Ideal for a hands-on engineer with strong project and BAU experience in enterprise environments. Contract role, London based, with occasional travel as required. Hybrid, 3/4 days a week onsite