Network Manager – Operational Technology OT

Overview

As Network Manager (OT) you will own the availability, resilience and security of OT networks across wind and solar sites and the control centre. You will manage core infrastructure and drive OT/IT segmentation and boundary protection. You’ll coordinate with third-party providers, security partners and internal teams to support monitoring, incident response and compliance with NIS/NIS2 and IEC 62443. This role combines hands-on network management with governance, documentation and site deployments, offering impact across a fast-growing renewable energy business.

Pay / Benefits

• Salary up to 100k
• Bonus (c20%)
• Pension
• Hybrid/work from home flexibility
• Impactful role with progression

Responsibilities

• Own OT network availability, resilience and security across generation sites and control centre
• Manage switches, routers, firewalls, VPNs and secure remote access
• Lead OT/IT network segmentation and boundary protection per IEC 62443
• Manage third-party connectivity providers and service performance
• Oversee incidents, changes and overall service performance
• Support security monitoring, logging, incident response and remediation
• Ensure network controls meet NIS obligations and support risk management, supply-chain assurance and audit readiness
• Maintain network standards, configurations, diagrams, asset records and recovery documentation
• Travel to operational sites for deployments, investigations, audits and stakeholder engagement

Key requirements

• Experience in network engineering, OT networking or infrastructure in a live operational utility environment
• Strong knowledge of network and firewall configuration, routing, switching, VPNs and secure remote access
• Experience with OT environments, network segmentation and industrial cybersecurity
• Experience managing third-party providers, service performance, incidents and change management
• Knowledge of IEC 62443 and understanding of NIS/NIS2 cyber security and resilience requirements
• Strong troubleshooting, documentation and stakeholder management skills
• Collaborative and pragmatic with excellent communication and stakeholder management skills

• collaborative
• pragmatic
• strong communication
• OT networking
• network segmentation
• IEC 62443

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