OT Security Consultant

83zero Ltd; City Of London; Hybrid; GBP 90,000 - 110,000; Full time

Job summary

83zero Ltd is recruiting an experienced OT Security Consultant to join a well-established cybersecurity team, working with clients across energy, manufacturing, oil & gas, and pharmaceuticals in the UK. The role focuses on securing operational technology environments and delivering practical improvements.

You will conduct OT security assessments, review networks and controls, identify vulnerabilities and develop policies, roadmaps and trusted guidance for clients while working in a hybrid

Qualifications

• Experience in OT/ICS security environments (SCADA/ICS).
• Understanding of OT network architecture and security controls.
• Experience conducting security assessments and gap analyses.
• Familiarity with IEC 62443 or NIST frameworks.

Responsibilities

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

Skills

OT security

OT network architecture

Risk management

Security assessments

IEC 62443

NIST

Client communication

Job description

OT Security Consultant Up to 100,000 Hybrid

I'm currently recruiting for an experienced OT Security Consultant to join a well-established cybersecurity team, working with clients across sectors including energy, manufacturing, oil & gas and pharmaceuticals.

This is a great opportunity for someone with a strong OT security background who enjoys working directly with clients and helping organisations improve the security of their operational environments.

What you'll be doing:

• Conducting OT security assessments, audits and risk assessments.
• Reviewing OT networks, systems and security controls.
• Identifying vulnerabilities and recommending practical security improvements.
• Developing OT security policies, procedures and roadmaps.
• Providing technical guidance and acting as a trusted advisor to clients.

What we're looking for:

• 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, gap analyses and producing recommendations.
• Familiarity with frameworks such as IEC 62443 or NIST would be beneficial.
• Strong communication skills and confidence working directly with clients.

Salary:

Up to 100,000

Location:

Hybrid - 2-3 days onsite per week at your nearest base location.

Clearance:

Candidates must currently hold active SC clearance and be sole UK nationals (no dual nationality).