Head Of It jobs in United States

Central London

Up to £90k

A well-established and highly profitable construction engineering business is seeking an experienced IT Infrastructure Manager to join them on a permanent basis. This is a pivotal leadership role within a business undergoing rapid expansion of its technical capability, with ambitious growth targets and multiple acquisitions planned annually for the next five years (eight in the past twelve months).

Reporting directly to the Head of IT, you will take strategic ownership of the organisation's core infrastructure and network operations. You will manage relationships with external service providers, lead internal infrastructure initiatives and ensure the stability, scalability and security of IT systems across multiple sites, whilst leading the infrastructure team.

• Lead and manage the delivery of infrastructure and network services across offices and project sites, aligning with business objectives
• Oversee third‑party managed service providers, ensuring performance, SLAs and service quality
• Provide leadership to technical staff
• Plan and coordinate infrastructure upgrades, migrations and integrations across a growing business portfolio
• Manage network and server operations, ensuring uptime, resilience and business continuity
• Oversee the design and deployment of new site networks and connectivity solutions, ensuring standardisation and efficiency
• Collaborate with the Security Operations Center and compliance teams to maintain a robust security posture
• Develop and enforce infrastructure policies, processes and documentation to support consistent operations and future scalability
• Maintain oversight of infrastructure assets, configuration management and software licensing
• Contribute strategically to IT budgeting, vendor management and continuous service improvement initiatives
• Provide high‑level technical oversight and guidance in areas including: Azure infrastructure management, network protocols (TCP/IP, DHCP, DNS), firewall operations (preferably FortiGate), WAN/LAN/VPN connectivity, Microsoft and Windows Server environments

• Proven experience in infrastructure/IT operations management within a multi‑site environment
• Demonstrable experience managing third‑party MSPs and IT vendors
• Strong leadership and communication skills, with the ability to translate technical priorities into business outcomes
• Solid understanding of networking and cloud technologies (Azure preferred)
• Relevant certifications (e.g. ITIL, Azure) is highly desirable

Initially 4 days per week onsite (reducing to 3 days after 3 months).