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OT Security Consultant @ 83zero Ltd

London, England, GBOnsiteFull-time
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About this role

Salary: £90,000 - 100,000 per year

Requirements

  • Experience working in OT/ICS security environments, ideally with exposure to SCADA or industrial control systems
  • Good understanding of OT network architecture, security controls and risk management
  • Experience conducting security assessments and gap analyses, and producing recommendations
  • Familiarity with frameworks such as IEC 62443 or NIST is beneficial
  • Strong communication skills and confidence working directly with clients
  • Must currently hold active SC clearance and be a sole UK national (no dual nationality)

Responsibilities

  • Conduct OT security assessments, audits and risk assessments
  • Review OT networks, systems and security controls
  • Identify vulnerabilities and recommend practical security improvements
  • Develop OT security policies, procedures and roadmaps
  • Provide technical guidance and act as a trusted advisor to clients

Technologies

  • Network
  • Security

More

We are recruiting an experienced OT Security Consultant to join our well-established cybersecurity team, supporting clients across energy, manufacturing, oil and gas, and pharmaceutical sectors. The role offers the opportunity to work directly with clients to improve the security of their operational environments. The salary is up to £100,000, and the position is hybrid, with 2–3 days onsite per week at your nearest base location.

last updated 45 week of 2026

Skills

OT/ICS securitySCADAindustrial control systemsOT network architecturesecurity controlRisk Managementsecurity assessmentGap analysisIEC 62443NISTSC clearance

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