Network Administrator

TECEZE; Colworth; On-site; GBP 40,000 - 65,000; Full time

Job summary

TECEZE is seeking an On-site Network Administrator to manage and secure the company’s on-site network infrastructure at the Colworth site in the United Kingdom. The role covers maintaining physical and cyber security, monitoring switches/routers/firewalls/APs, and overseeing OT/IT system integration in a pilot plant environment.

You will act as the primary on-site contact for OT equipment and coordinate with vendors, engineering teams, and remote colleagues to ensure reliable, compliant

Qualifications

• Maintain on-site network infrastructure and physical security compliant.
• Monitor and troubleshoot network gear, including switches, routers, and access points.
• Coordinate OT/IT systems integration and vendor activities.
• Support change projects and ensure operational continuity.
• Document configurations, diagrams and runbooks.

Responsibilities

• Act as the primary on-site contact for all OT and lab/factory systems, providing first-line troubleshooting.
• Provide on-site support for IT/OT integration, escalating to central teams when needed and tracking resolutions.
• Coordinate vendor access for installation, commissioning, maintenance and support, ensuring safety and access controls.
• Assist with pilot plant technology change projects, including equipment commissioning and system upgrades.
• Monitor health and availability of critical OT and lab systems, testing recovery procedures.

Skills

Network administration

IT/OT integration

Troubleshooting

Vendor coordination

Tools

Cisco devices

LAN/WLAN management

Job description

On-site Network Admin – Key Responsibilities

• Maintain site infrastructure: Ensure server rooms, comms cabinets, power, cooling, and physical security are fully operational and compliant
• Support the management of network equipment in partnership with Client Install, monitor, and troubleshoot switches, routers, firewalls, and access points
• Oversee cabling: Maintain structured cabling (copper/fibre), patching, and clear labelling to standards
• Perform site maintenance: Keep racks and cabinets organised, resolve cabling and hardware issues, and ensure safe working conditions
• Support operations: Troubleshoot incidents, assist with deployments, and support remote engineering teams
• Control assets: Track inventory, deliveries, installations, and equipment lifecycle on-site
• Document & report: Maintain accurate records, diagrams and document key decisions for the site
• Ensure compliance: Follow network standards, safety policies, and approved designs

EUC

• Coordinate cutover activities to ensure all users receive their devices with the correct applications installed
• Manage any issues through to resolution in partnership with client and Global IT teams

Local OT/IT Systems Support

• Act as the primary on-site point of contact and owner for all OT and lab/factory systems.
• Provide first-line troubleshooting and support for OT and integrated IT/OT systems, escalating to central teams or specialist vendors where required, and managing those escalations through to resolution
• Support integration activities between IT and OT systems — ensuring connectivity is stable, secure, and well-documented
• Serve as the primary on-site interface for all local third-party suppliers of OT equipment, industrial software, instrumentation, and specialist engineering services
• Coordinate vendor access to site for installation, commissioning, maintenance, and support activities, ensuring compliance with site safety, cybersecurity, and access control requirements

Change & Project Support

• Support the delivery of technology change projects within the pilot plant environment — including new equipment commissioning, system upgrades, and integration work — acting as the on-site technical authority for OT aspects
• Participate in cutover planning and execution, ensuring operational risk to the pilot plant is understood, communicated, and mitigated

Operational Continuity

• Monitor the health and availability of critical OT and lab systems, proactively identifying and resolving issues before they impact R&D operations or pilot plant runs
• Maintain and test business continuity and recovery procedures for key OT systems, ensuring the site can recover from failures within agreed timescales
• Support the handover of new systems into steady-state operations, including producing runbooks, training local users, and ensuring vendor support arrangements are in place.