Senior OT Cyber Security Engineer

Vacancy Title: Senior OT Cyber Security Engineer Contract Type: Permanent Location: Staffordshire Industry: TECHNICAL & ENGINEERING IT & Software Development Salary: Competitive Start Date: 2025-10-15 REF: J Contact Name: Ben Evans Contact Email: Vacancy Published: 2 days ago

Senior OT Cyber Security Engineer

Full time - Permanent
Staffordshire

Are you an experienced Industrial Control Systems Cyber Security Engineer?
Do you have a solid understanding of networks and cyber-secure infrastructure?
Are you ready for a role where you can lead technically, shape solutions and work on high-impact projects?

What's in it for you?

• Fantastic basic salary
• Hybrid working
• 28 days holiday plus bank holidays and the ability to buy a further 5,
  
• Training and development,
• Flexible working,
• 6.5% Pension scheme,
• Life Assurance (4x annual salary),
• Private healthcare,
• Cycle to work & Green car scheme

What will you be doing?

• You'll design and secure operational technology networks across a range of industries.
• You'll solve complex digital and operational security problems facing Industrial Control Systems used within the nation's critical infrastructure cyber-landscape.
• You'll assess the robustness of cybersecurity architectures, technologies, and procedures within customer facilities.
• You'll design comprehensive technical solutions that meet client requirements and implement the appropriate tools, technologies & processes to mitigate critical security risks (e.g., system and mobile antivirus software, encryption modules, patch management programs, insider threat protection, incident response plans, forensic capabilities, and regulation compliance).
• You'll conduct comprehensive attack path analysis and threat modelling, mapping adversary tactics and techniques to industrial environments and developing tailored mitigation strategies.
• You'll lead and execute advanced penetration testing, red teaming, and adversary simulation exercises within OT/ICS environments, leveraging frameworks such as MITRE ATT&CK forICS and modelling using Bow-Tie Analysis to proactively identify and exploit vulnerabilities.
• You'll conduct vulnerability assessments and administrative audits on client computer systems and network devices considering the sensitivity of Operational Technology testing.
• You'll lead collaboration efforts with other cybersecurity experts on team to develop well-constructed approaches to ICSON T risk management, mitigation, and monitoring strategies.
• You'll mentor younger members of the team regarding ICSON T cybersecurity, Infrastructure & Network Engineering.

Where will you be working?

Our client has been a leader in advanced system integration for decades, they work on ambitious and leading-edge projects across a broad range of domains, including Chemical, Water, Oil and Gas, Energy.

What you'll need:

• You'll have 5+ years' experience with cyber security technologies with at least 2 years serving critical infrastructure/industrial control systems, including SCADA, PLCs, RTUs, etc.
• Experience with securing systems running ICSON E communications protocols (e.g., MODBUS, OPC, DNP3, etc.).
• Experience securing cross-domain IT/OT communications and interfaces.
• Experience designing & configuring secure networks (Switching, Routing, Firewalls).
• Experience engineering security solutions for real-time and/or performance-sensitive systems.
• Experience creating Functional Design Specifications and Detailed Infrastructure, Network and Cyber Security Specifications.
• Demonstrated experience conducting system assessments and security audits in alignment with technical security frameworks, including NIST 800-53/800-82, ISO 27001, IEC 62433, HSE OG-86, NIS-R, and others

We appreciate your CV may not be up to date. No problem, just apply and we'll deal with that later.

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