Cyber Security OT Engineer

📍 Suffolk (1-2 days per week on-site)

Overview
We're looking for an experienced Cyber Security OT Engineer to support and secure critical operational technology environments. You'll work across infrastructure, networks, and security tooling to ensure resilience, compliance, and protection against cyber threats in a regulated environment.

Key Responsibilities

Support and maintain OT security infrastructure (firewalls, SIEM, PAM, IDS, endpoint security)
Monitor, troubleshoot, and resolve security incidents and problems
Implement changes in line with strict change control processes
Support OT security projects and continuous improvement initiatives
Assist with cyber incident response and recovery activities
Work with internal teams, vendors, and stakeholders to enhance security posture
Contribute to security testing, risk mitigation, and compliance (e.g. NIS regulations)
Provide input into network security design across WAN/LAN and OT environmentsExperience Required

~5+ years in Cyber Security or Networking (ideally within OT / industrial environments)
Strong knowledge of network security, firewalls, VPNs, and routing
Experience with SIEM, monitoring, and incident response
Understanding of OT/SCADA environments and industrial protocols is beneficial
Familiarity with security frameworks (e.g. NCSC, ISO27001, IEC 62443)
Experience with tools such as Fortinet, Cisco ISE, or similar
Knowledge of Windows/Linux security and virtualised environments
Scripting (PowerShell/Python) desirableAdditional Info

Must be eligible for UK security clearance (SC)
Strong stakeholder communication skills requiredIf interested, please APPLY and a consultant will be in touch asap.

GCS is acting as an Employment Agency in relation to this vacancy