Senior Cyber Security Consultant

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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