Senior Infrastructure Engineer (Ref: 194230)

Divisional Manager – Permanent Appointments – IT & Data, Forsyth Barnes

Location: London (Fully Onsite)

Salary: Up to £55,000

We are supporting a well established and highly regulated organisation in London that is seeking a Senior Infrastructure Engineer to maintain and enhance its technology estate, ensure system reliability, strengthen IT security, and support ongoing operational performance.

This role is responsible for managing Windows-based infrastructure running on VMware, supporting core network services, administering security tools, and contributing to an environment where technology is central to day-to-day operations. You will partner closely with internal teams, respond to escalated issues, and ensure systems are optimised, secure, and resilient.

Key Responsibilities

• Administer and support a Windows-based server and workstation environment.
• Manage VMware ESXi hosts, virtual machines, and vCenter including provisioning, performance, and troubleshooting.
• Configure and maintain network infrastructure including Extreme switches, Extreme wireless access points, and Fortinet routers.
• Manage enterprise security tools including Sentinel Antivirus, Darktrace AI protection, Delinea PAM, Automox patching, Office 365, and Rapid7 vulnerability management.
• Monitor performance and implement improvements across infrastructure systems.
• Support incident resolution and escalation for hardware, software, and network issues.
• Assist with backup and disaster recovery process and readiness.
• Create and maintain clear documentation for configurations, procedures, and IT operations.
• Collaborate with internal teams to understand requirements and deliver infrastructure solutions that meet business needs.
• Apply IT security best practices across firewalls, patching, and vulnerability management.

Skills & Experience

• Proven experience working in a Senior or Infrastructure Engineering role in a Windows and VMware environment.
• Strong knowledge of virtualisation, networking fundamentals, routing, switching, and wireless access.
• Hands‑on experience with tools such as Sentinel, Darktrace, Delinea PAM, Automox, Office 365 and Rapid7 or similar security platforms.
• Understanding of backup strategies, continuity planning, and disaster recovery.
• Ability to write documentation, communicate clearly with stakeholders, and support change initiatives.
• A proactive problem solver with strong attention to detail and a focus on performance, reliability, and continuous improvement.

If this role is of interest, please reach out directly to david.daminabo@forsythbarnes.com to discuss the opportunity.

Seniority level

• Mid‑Senior level

Employment type

• Full‑time

Job function

• Information Technology

Industries

• Staffing and Recruiting