Senior Infrastructure Engineer

Overview

Well-established, highly profitable construction engineering business is seeking an experienced Senior Infrastructure Engineer to join on a permanent basis. You will join at a time of growth as the organisation expands its technical capability with ambitious growth plans and multiple acquisitions planned over the next 5 years.

Reporting into the IT Operations Manager, you will oversee core infrastructure and networking, work with managed service providers to ensure seamless operations and business continuity, and lead regular site set-ups.

Base pay range

Central London — Up to £80k

Key Responsibilities

• Lead and manage office and site networks, aligning with business strategy
• Act as an escalation point for the Service Desk Team
• Set up and configure Local Area Networks (LANs), including hardware deployment and support
• Coordinate with third-party MSPs for network and infrastructure management
• Manage firewall operations and connectivity with ISPs
• Oversee network IP addressing and VPN setups
• Support business continuity through proactive incident management
• Rapid deployment of site connectivity solutions, including 4G routers
• Monitor network health and performance, ensuring high availability and resilience
• Maintain inventory and configuration records for infrastructure and software
• Collaborate with the Security Operations Center (SOC) on network security
• Support software licensing and upgrades
• Support data privacy and security audits
• Provide technical support and mentoring
• Maintain server rooms and ensure operational efficiency
• Develop and implement business processes and documentation

Requirements

• Strong knowledge of Azure infrastructure management
• Strong networking skills (TCP/IP, DHCP, DNS, etc.), CCNA/CCNP or equivalent
• Experience with FortiGate firewalls and Windows operating systems
• Familiarity with WAN, LAN, VPN, and wireless networks

4 days per week onsite initially, dropping to 3 days after 3 months.

Seniority level

• Mid-Senior level

Employment type

• Full-time

Job function

• Information Technology

Industries

• Construction, Engineering Services, and IT Services and IT Consulting

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