Senior Infrastructure Engineer

Base pay range

Central London

Up to £80k

Leading, well-established construction engineering business is seeking a Senior Infrastructure Engineer.

You will support and oversee core infrastructure and networking, working closely with managed service providers to ensure seamless operations and business continuity whilst taking a lead on regular site set‑ups.

You’ll be joining at a critical time as the organisation expands its technical capability, with ambitious growth plans and multiple acquisitions planned every year for the next 5 years (8 in the past 12 months).

Key Responsibilities

• Strong experience of the Microsoft tech stack; Windows Server, Azure AD / Entra, Exchange 365, Purview, PowerShell.
• Act as an escalation point for the Service Desk Team
• Assist in set up and configuration of LAN environments (particularly in regard to basic firewall configs), including hardware deployment and support
• Coordinate with third‑party MSPs for network and infrastructure implementation and ongoing management
• Manage firewall operations and connectivity with ISPs
• Oversee network IP addressing and VPN setups
• Support business continuity through proactive incident management
• Maintain inventory and configuration records for infrastructure and software
• Support software licensing and upgrades
• Support data privacy and security audits

Requirements

• Strong knowledge of Azure infrastructure management
• Strong LAN and WiFi network understanding (ability to configure / troubleshoot to a reasonable level and manage). While not an absolute requirement, a CCNA or CCNP (or equivalent knowledge), would be beneficial
• Experience with FortiGate Firewalls would be highly beneficial
• Excellent communication skills with a proactive and self‑motivated approach

Seniority level

Mid-Senior level

Employment type

Full‑time

Job function

Information Technology

Industries

Engineering Services, Construction, and IT Services and IT Consulting

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