Network Infrastructure Engineer

Network & Systems Engineer – Real Estate/ Construction – London

£65,000-£77,000 + Discretionary Bonus & Benefits

The Business

Our client is a well-established London based construction firm delivering high-quality new build, refurbishment and fit-out projects ranging from £1m–£60m. Its client portfolio includes globally recognised brands and international recognised prestigious institutions.

The Role

Part of a small team of 3, the Network & Systems Administrator will take ownership of the day-to-day operation, security and continuous improvement of the company’s IT infrastructure.

This is a hands-on technical role supporting both head office and live construction sites. Reporting to the IT Director, the successful candidate will work closely with internal stakeholders, third-party suppliers and consultants to ensure systems are secure, reliable and scalable.

The role requires a strong technical foundation, a proactive mindset and the ability to balance infrastructure leadership with high-level technical support.

Key Responsibilities

Network & Infrastructure

• Implement, manage and support Fortinet solutions including FortiGate firewalls, FortiManager, FortiAnalyzer and FortiClient VPN
• Manage firewall policies, SD-WAN, VPNs (site-to-site and client), and network segmentation

Systems & Cloud

• Administer Windows Server environments including Active Directory, Group Policy, DNS, DHCP and file services
• Support virtualised environments
• Assist with Azure resource administration

Cyber Security & Best Practice

IT Operations support assistance

Skills & Experience

• Proven experience as a Network / Systems Administrator or similar role
• Strong hands-on experience with Fortinet products, particularly FortiGate firewalls and VPNs
• Solid networking knowledge (TCP/IP, VLANs, routing, firewalling)
• Strong understanding of cyber security fundamentals and best practice
• Experience administering Microsoft 365 environments
• Strong knowledge of Windows Server, Hyper-V or Vmware and Active Directory
• Experience delivering 3rd line support in a business environment

The Opportunity

This role offers the opportunity to take ownership of a growing, evolving infrastructure environment within a highly respected London construction firm. The successful candidate will play a key role in strengthening operational resilience, enhancing cyber security posture and supporting a dynamic business delivering projects for world-class clients.