Network Manager

Job Summary

Manage internal ICT systems, network infrastructure & associated services to support secure & efficient operation of the Corporate IT & Operational Technology (OT) networks in our datacentre facilities & office locations.

Responsibilities

• Support the installation, commissioning & testing of new network hardware & software.
• Own the identification, resolution & escalation of technical issues across network hardware & software.
• Evaluate, validate & implement critical vendor updates to network infrastructure.
• Deliver responsive on-site support to network users, ensuring minimal disruption to operations.
• Manage & prioritise internal service requests, escalating to the Network Operations Manager where necessary.
• Develop, prepare & govern IT change control documentation in collaboration with key stakeholders.
• Monitor & analyse device security & event logs to proactively identify risks, issues or threats.
• Maintain & continuously improve network configurations & documentation.
• Conduct & document regular visual inspections of network infrastructure to ensure operational readiness.
• Collaborate closely with the Maintenance Team to ensure reliable BMS/OT network performance.
• Partner with the Security Team to support & enhance Security network operations.
• Provide hands‑on support & troubleshooting for site IT hardware & network connectivity when required.
• Provide operational support & technical guidance to the Maintenance & Security teams.
• Own the optimisation, reporting & performance metrics of our Building Management (BMS) systems.
• Drive efficiency improvements in collaboration with the global IT team.
• Support cross‑site collaboration by assisting other datacentres with troubleshooting & technical guidance.
• Coordinate & deliver IT hardware setup & system access for new employees alongside the global IT team.
• Own ICT budget planning, forecasting & OPEX control, ensuring cost‑effective operations.
• Manage external IT service providers, coordinating support when required to meet business needs.
• Monitor & manage datacentre IT network performance, targeting 99.99% uptime.

Team Management Responsibilities & Key Relationships

• Reports to Data Centre Manager.
• Coordinate with central Network Operations Manager for ICT program, compliance & technical support.
• Collaborates with internal Maintenance & Security teams, contractors & other site stakeholders.
• Provide 1st line support to Security team regarding building security systems (CCTV & Access control).
• Provide 1st line support to Maintenance team regarding Building Management Systems (BMS).

Qualifications

• Strong written & verbal communication skills across diverse stakeholder groups.
• Ability to work independently in a busy operational environment.
• Able to demonstrate strong team working & interpersonal skills.
• Proven troubleshooting & analytical problem‑solving skills.
• Proven track record of developing, managing & maintaining critical ICT networks & systems.
• 3rd party supplier & vendor management experience.
• Strong Cisco Enterprise switching background, CCNA certification preferable (or equivalent experience).
• Strong Cisco Meraki background, ECMS certification preferable (or equivalent experience).
• Strong network security background, CompTIA SEC+ certification would be an advantage.
• Excellent working knowledge of networking & security technologies including:
• Cisco Enterprise Switching & FirePower Security Appliances
• Cisco Meraki Wired & Wireless Networking Solutions
• Palo Alto Next Generation Firewalls
• Microsoft Windows Server & Active Directory
• Hypervisor based Virtual Server environments
• IP Telephony & Video Collaboration Solutions
• PRTG Network Monitor
• Microsoft Windows & Office 365
• Previous experience in a similar role for 3 years.
• Previous experience of working in a datacentre or other critical environments.
• Detailed knowledge of wired & wireless LAN architectures & protocols.
• Experience of managing & maintaining complex multi‑vendor network infrastructure.
• Previous experience of managing operational network security.
• Previous experience of managing & troubleshooting critical wired & wireless networks.
• Previous experience with 3CX IP Telephony would an advantage.
• Previous experience with ForeScout network & OT security solutions would be an advantage.
• Previous experience with Schneider EcoStruxure Building Management Systems (BMS) would be an advantage.
• Previous experience with Genetec CCTV & Access Control systems would be an advantage.

Note: The successful candidate will be required to complete pre‑employment screening to BS7858:2019, or national equivalent. (Covers: Confirmation of identity, legal right to work, financial probity, criminal history and associations with proscribed organisations). It is the policy of Pure DC that all individuals have a responsibility for the security and protection of company’s Information and IT Resources over which they have control, according to their role.

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