OT Security Consultant
Location: UK (Hybrid)
Reports to: Head of Cyber Security
We are seeking an experienced OT Security Consultant to support our Energy & Utilities clients in designing, implementing and maturing their IT/OT security capabilities. In this role, you will work with Critical National Infrastructure (CNI) operators, distribution networks, generation facilities and major utilities organisations to help them secure their operational technology environments, manage cyber risk, and comply with sector‑specific regulations.
Responsibilities
OT Security Advisory
- Deliver expert consultancy on OT and IC security, providing guidance across risk management, architecture, governance, strategy, and controls implementation.
- Conduct OT security assessments, including maturity reviews, threat modelling and risk assessments aligned to industry standards.
- Support clients in developing OT security improvement plans, security roadmaps and investment cases.
Technical OT / Ics Security Delivery
- Perform OT network security reviews, segmentation assessments and architecture validation work.
- Assist with the design and implementation of secure OT networks, including firewalls, DMZs, data diodes and remote access solutions.
- Conduct vulnerability assessments within IC environments.
Regulatory & Compliance Support
- Guide clients on compliance with UK frameworks such as NIS/NISR and NCSC CAF.
- Assist with audit preparation, documentation and remediation planning.
Client Engagement & Delivery Leadership
- Work with engineering, IT, security, and operations teams.
- Produce high‑quality consultancy deliverables.
Qualifications
- Experience with operational technology, industrial control systems and SCADA.
- Experience delivering OT security projects within the Energy & Utilities sector.
- Understanding of industrial protocols.
- Hands‑on experience with OT network design and security.
- Familiarity with control system vendors.
- Experience applying OT frameworks such as IEC62443.
- Strong analytical and problem‑solving skills.
- Comfortable working on industrial client sites.
- Understanding of OT vs IT architecture differences.
- Knowledge & experience of OT IDS technologies (e.g. Nozomi, Claroty, Dragos).
- Understanding of industrial networking and gateways.
- Experience with OT focused penetration testing.
- Knowledge of cloud‑integrated OT solutions.
- Ability to translate technical findings into business recommendations.
- Comfortable delivering workshops.
Certifications – Highly Desirable
- OT/ICS Security/Safety Certifications
- General Security Certifications
- Engineering Certifications
Diversity & Inclusion Statement
As a global technology, consulting, and engineering partner, we are committed to fostering an inclusive environment where every individual is valued and empowered to contribute their unique talents. We embrace diversity in all its forms – across gender, ethnicity, culture, and experience – and are dedicated to creating a workplace that reflects the communities we serve. Together, we drive innovation and deliver excellence to our clients.
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