IT System Engineer – (Patch Management)
Location: London – E16, UK (Hybrid – Office, Customer Sites & Remote)
Employment Type: Full-Time
Reports To: Lead System Engineer
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Role Overview
We are seeking a skilled and proactive IT System Engineer to join our London-based infrastructure team. The successful candidate will be responsible for the delivery of patch management services and the hands-on installation of updates, upgrades, patches, and hotfixes across enterprise environments.
This role is both customer-facing and internally focused, requiring work at our London office, remote support, and on-site visits to Network Rail & TfL customer locations across Greater London and surrounding areas.
The position requires strong technical capability, excellent documentation skills, and a professional approach when operating within client environments.
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Key Responsibilities
Patch & Update Management
– Plan, test, schedule and deploy patches, updates, service packs, upgrades, and hotfixes.
– Manage structured patch cycles (monthly, emergency, zero-day response).
– Perform pre-deployment testing and post-implementation testing & validation.
– Maintain patch compliance reporting and remediation tracking.
– Ensure minimal disruption to production systems.
OS Infrastructure
– Updates to various Linux distributions, Ubuntu, Debian, Red Hat etc.
– Updates to Windows Server (2016/2019/2022) & Windows 10/11 environments.
– Configure and administer WSUS.
Network & Security Infrastructure
– Deploy firmware updates and patches for:
– Cisco routers and switches
– Cisco firewalls
– Juniper firewalls
– Perform configuration backups and validation before changes.
– Assist with vulnerability remediation and security audits.
Virtualisation
– Manage patching and lifecycle updates for VMware environments.
– Maintain and upgrade VMware ESXi hosts and vCenter.
– Ensure VM availability during maintenance cycles.
Customer Engagement
– Deliver on-site patching and maintenance at customer locations.
– Provide clear communication before, during, and after maintenance windows.
– Produce change documentation and implementation reports.
– Work within ITIL change control processes.
Required Skills & Experience
Essential
– 5+ years’ experience in infrastructure or systems engineering roles.
– Experience delivering structured patch management processes.
– Knowledge of change management and maintenance windows.
– Excellent troubleshooting and root-cause analysis skills.
– Strong hands-on experience with some, or all of the following:
– Windows Server & Windows Workstation environments
– Linux Operating Systems
– WSUS administration
– Cisco rout ers & switches
– Cisco and Juniper firewalls
– VMware vSphere ( ESXi, vCenter, vLCM)
– HPE & Dell server firmware
Desirable
– Familiarity with backup solutions.
– Exposure to automation (PowerShell scripting).
– ITIL Foundation certification.
– Vendor certifications (Microsoft, Cisco, VMware, Juniper).
– Experience working within Network Rail or Transport for London industry sectors.
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Personal Attributes
– Professional and customer focused.
– Highly organised with strong documentation skills.
– Comfortable working out-of-hours during maintenance windows.
– Strong communication skills (written and verbal).
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Working Conditions
– Hybrid working model (London office, remote, and customer sites).
– Occasional evening or night work during planned maintenance windows.
– Travel within Greater London and surrounding areas.
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What We Offer
– Competitive London-based salary.
– Company pension scheme.
– 26 days Holiday plus Bank Holidays
– Employee portal
– Professional development and certification support.
– Exposure to diverse enterprise customer environments.
– Opportunity to work across multi-vendor infrastructure technologies.
