Technical Cyber Security Specialist - OT/SCADA

Role Overview

We are seeking an experienced Technical Cyber Security Specialist with strong expertise across Operational Technology (OT), SCADA environments, and Cyber Security engineering. The successful candidate will play a key role in the design, deployment, hardening, and support of cyber security solutions across complex OT estates, working within a multi-supplier delivery environment and engaging with technical, security, and programme stakeholders.

Technical Experience

• Strong background in both IT and Operational Technology (OT) infrastructure engineering.
• Proven experience working with SCADA and industrial control system environments.
• Experience deploying and supporting cyber security technologies within OT estates.
• Demonstrable experience in security hardening of OT infrastructure and critical systems.
• Strong Linux administration skills, including:
• Physical server builds
• Virtual server deployment
• System configuration and support

Infrastructure & Virtualisation

• Experience with:
• Dell VxRail
• VMware ESXi
• Virtualisation platforms and associated infrastructure technologies

Network & Security Technologies

• Proven experience implementing and supporting the Fortinet product suite, including Firewall and security solutions.

Cyber Security Tooling: Experience with one or more of the following technologies:

• Privileged Access Management (PAM) solutions
• Carbon Black App Control
• McAfee/Trellix ePO
• Tenable Vulnerability Management
• Nessus Scanners
• Nessus Manager
• Public Key Infrastructure (PKI)
• On-premises Certificate Authority (CA) implementation and management

Key Responsibilities

• Design, deploy and support cyber security solutions across OT and SCADA environments.
• Implement security controls and hardening standards for critical infrastructure and operational systems.
• Support the deployment and configuration of cyber security technologies, ensuring alignment with security policies and operational requirements.
• Produce high-quality technical documentation, design artefacts, requirements packs, and implementation guides.
• Conduct technical assessments and provide recommendations for improving the security posture of OT estates.
• Work collaboratively within multi-supplier delivery environments, managing technical dependencies and governance requirements.
• Engage with stakeholders across engineering, cyber security, architecture, operations, and programme governance teams.
• Support vulnerability management activities, remediation planning, and security assurance processes.
• Provide technical leadership and knowledge transfer to internal teams to enhance organisational capability.
• Contribute to operational readiness, documentation, training, and support activities.

Essential Skills & Competencies

• Strong understanding of OT and industrial cyber security principles.
• Excellent stakeholder management and communication skills.
• Ability to translate technical requirements into clear business and engineering outcomes.
• Strong analytical and problem-solving capabilities.
• Experience operating within complex, highly governed programmes.
• Ability to mentor engineers and transfer technical knowledge effectively.
• Strong documentation and reporting skills.