We are seeking a highly experienced Senior OT Security Consultant to lead and deliver complex security engagements across UK Energy & Utilities clients. This senior role will be responsible for shaping security strategy, leading technical delivery, influencing senior stakeholders, and mentoring consultants across IT/OT security domains.
Location: UK (Hybrid)
Reports to: Head of Cyber Security
Responsibilities
OT Security Advisory Leadership
* Lead OT and Ics security strategy development, maturity assessments, and architectural reviews.
* Advise senior client stakeholders on governance, risk, resilience, and regulatory obligations.
* Define OT security improvement roadmaps and investment cases.
Technical OT / IICS Delivery Leadership
* Lead design and validation of secure OT architectures including segmentation, firewalls, DMZs, and remote access.
* Oversee OT vulnerability assessments, configuration reviews, and secure integration of Ics solutions.
* Provide senior guidance during OT cyber incidents including containment, forensics, and recovery.
Regulatory & Compliance Expertise
* Interpret and apply NIS/NISR, Ofgem/Ofwat expectations, NCSC CAF and IEC62443 requirements.
* Support audit readiness, evidence collation, and remediation planning.
Client Engagement & Delivery Excellence
* Own client relationships and act as senior point of escalation.
* Produce and review high-quality deliverables including designs, assessments and reports.
* Lead proposals, pre‑sales activities and contribute to business development.
* Mentor and coach junior consultants.
* Extensive experience with OT, Ics, SCADA, DCS and industrial networking.
* Proven track record delivering and leading OT security engagements in Energy & Utilities.
* Expert understanding of Ics protocols (Modbus, DNP3, IEC‑104, OPC/UA etc.).
* Significant experience designing and reviewing OT architectures using the Purdue Model.
* Strong familiarity with major OT/ICS vendors (Siemens, ABB, GE, Schneider Electric).
* Experience applying frameworks such as IEC62443, NIST CSF, NIST 800‑82, NCSC CAF.
Certifications – Highly Desirable
* OT/ICS Security/Safety Certifications
* ISA/IEC 62443 Cybersecurity Expert
* TÜV Certified Cyber Security or Functional Safety (preferred)
Engineering Certifications
* CCNA/CCNP or equivalent networking certification (optional)
Personal Attributes
* Strategic thinker with ability to influence senior stakeholders.
* Strong analytical and problem‑solving capability.
* Excellent communication and documentation skills.
* Ability to work flexibly across industrial client environments.
Nice to have
* Technical Leadership Skills
* Experience with OT IDS technologies (e.g. Claroty, Nozomi, Dragos).
* Knowledge of secure Ics engineering lifecycle and OT asset management.
* Experience leading OT penetration testing or red‑team style engagements.
* Understanding of IoT/IIoT integrations and cloud‑connected OT systems.
* Ability to translate complex OT risks into business‑aligned recommendations.
* Strong workshop facilitation and presentation capability.
* Ability to lead multidisciplinary teams and manage complex client programmes.
Benefits
* Pension scheme with a 5% employer contribution and 5% employee contribution.
* Employee Assistance Programme (EAP) providing confidential support.
* EV scheme to help you drive toward a greener future.
* Life assurance at 4x your salary.
* Private healthcare (for Level 3+ employees).
* 25 days’ annual leave + 8 bank holidays.
* LinkedIn Learning access.
* Free on‑site parking.
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