OT Security Consultant | SC Cleared | Hybrid

83zero Ltd; United Kingdom; Hybrid; GBP 90,000 - 110,000; Full time

Job summary

83zero Ltd is seeking an experienced OT Security Consultant to support clients across energy, manufacturing, oil & gas, and pharmaceuticals. You will deliver OT security assessments and help improve security postures in critical operational environments.

This hybrid role requires Active SC clearance and sole UK national status. You will conduct audits, risk assessments and provide practical security guidance, working 2–3 days on-site per week at your nearest base location.

Qualifications

• Experience in OT/ICS security environments, including SCADA or industrial control systems.
• Knowledge of OT network security and risk assessments.
• Familiarity with IEC 62443, NIST or similar frameworks.

Responsibilities

• Deliver OT security assessments, audits and gap analyses.
• Review OT networks, systems and controls for vulnerabilities.
• Support clients with OT security strategies and roadmaps.
• Provide practical security recommendations and guidance.
• Work directly with clients as a trusted security advisor.

Skills

OT/ICS security

SCADA/ICS

Client-facing

Security assessments

Job description

83zero Ltd is seeking an experienced OT Security Consultant to support clients across energy, manufacturing, oil & gas, and pharmaceuticals. You will deliver OT security assessments and help improve security postures in critical operational environments.

This hybrid role requires Active SC clearance and sole UK national status. You will conduct audits, risk assessments and provide practical security guidance, working 2–3 days on-site per week at your nearest base location.