Network Manager OT BESS – Renewable Energy

Company: Client Server
Apply for the Network Manager OT BESS – Renewable Energy
Location: London
Job Description:

Overview

In this role you will own OT network services across wind/solar sites and a central control centre, ensuring secure, resilient connectivity for critical infrastructure. You will lead OT network infrastructure and work with external providers to strengthen security and regulatory compliance in a safety-critical environment. The position sits at the intersection of energy tech and cyber-physical security, contributing to a growing utility-scale operations portfolio. You will engage across sites, shaping secure networking practices and incident response in a fast-scaling renewable business.

Pay / Benefits

  • Salary to 100k
  • Bonus (~20%)
  • Pension
  • Impactful role with progression
  • Flexible work arrangement

Responsibilities

  • Own OT network availability, resilience and secure operations across generation sites and the control centre
  • Manage network infrastructure including switches, routers, firewalls, routing, VPNs and secure remote access
  • Lead OT/IT network segmentation and boundary protection aligned with industrial security principles (IEC 62443)
  • Oversee third-party network providers, service performance, incidents, escalations and changes
  • Support security monitoring, logging, incident response and remediation with internal and external teams
  • Ensure network controls meet NIS obligations, risk management, supply-chain assurance and audit readiness
  • Maintain network standards, diagrams, asset records and recovery documentation
  • Visit operational sites for deployments, investigations, audits and stakeholder engagement

Key requirements

  • Experience in network engineering or OT networking in a live operational environment (utilities)
  • 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
  • Good knowledge of IEC 62443 and understanding of NIS/NIS2-style cybersecurity 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
  • industrial cybersecurity

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Posted: October 17th, 2026