OT Engineer

NP Group; Greater London; Remote; GBP 92,000 - 101,000; Full time

Job summary

NP Group is seeking an OT Security Engineer for a 6-month contract. You will perform hands-on security verification, conduct detailed configuration reviews across multiple sites, and support evidence-based decision making for OT capabilities and controls.

The role requires extensive experience with OT remote access, micro-segmentation, and industrial cybersecurity frameworks such as NIST SP 800-82, the Purdue Model, and IEC 62443, working in complex, multi-vendor environments.

Qualifications

• Must have experience with OT remote access and Micro Segmentation.
• Hands-on OT/ICS security engineering experience in industrial or critical infrastructure environments.
• Strong practical knowledge of NIST SP 800-82, the Purdue Model, and IEC 62443 in real OT environments.
• Experience conducting OT security assessments, configuration reviews, and capability gap analysis.
• Familiarity with OEM vendor tooling and regional and regulatory constraints affecting OT security
• Proven ability to document findings clearly - evidence registers, gap analysis, constraint registers.
• Comfortable working independently in complex, multi‑vendor environments.
• Experience in manufacturing, pharmaceutical, or life sciences OT environments.
• Familiarity with OT asset visibility tools - Claroty, Nozomi, Dragos or equivalent.
• ISA/IEC 62443 certification or equivalent.

Responsibilities

• Gather evidence for each in-scope OT security capability and control, populating and maintaining the evidence register with sources.
• Conduct configuration and capability reviews at the comparator plant, the regional proximity hub, and shared IT/OT services.
• Validate regional viability per capability and control, including in-country OEM and regulatory availability and
• Provide hands‑on technical verification supporting the reuse, extend, and new status calls in the capability and control map.
• Feed findings into the regional constraints register and support gap identification where evidence cannot be closed remotely.
• Must have experience with OT remote access and Micro Segmentation
• Hands‑on OT/ICS security engineering experience in industrial or critical infrastructure environments.
• Strong practical knowledge of NIST SP 800-82, the Purdue Model, and IEC 62443 in real OT environments.
• Experience conducting OT security assessments, configuration reviews, and capability gap analysis.
• Familiarity with OEM vendor tooling and regional and regulatory constraints affecting OT security
• Proven ability to document findings clearly - evidence registers, gap analysis, constraint registers.
• Comfortable working independently in complex, multi‑vendor environments.
• Experience in manufacturing, pharmaceutical, or life sciences OT environments.
• Familiarity with OT asset visibility tools - Claroty, Nozomi, Dragos or equivalent.
• ISA/IEC 62443 certification or equivalent.

Skills

OT security engineering

OT/ICS security

Remote access

Micro Segmentation

NIST SP 800-82

Purdue Model

IEC 62443

Vendors & multi-vendor envs

OEM tooling familiarity

Tools

Claroty

Nozomi

Dragos

Job description

Start: ASAP (on completion of background checks)

Duration: 6 Months

Rate: £500 - £550 outside of IR35

Location: UK remote - some international travel

Reference: 20923

The OT Security Engineer provides hands‑on technical evidence and verification work that underpins the

architecture decisions during discovery, conducting detailed configuration and capability reviews at the comparator plant, regional hub, and shared IT/OT services.

Key Responsibilities

• Gather evidence for each in-scope OT security capability and control, populating and maintaining the evidence register with sources.
• Conduct configuration and capability reviews at the comparator plant, the regional proximity hub, and shared IT/OT services.
• Validate regional viability per capability and control, including in-country OEM and regulatory availability and
• Provide hands‑on technical verification supporting the reuse, extend, and new status calls in the capability and control map.
• Feed findings into the regional constraints register and support gap identification where evidence cannot be closed remotely.
• Must have experience with OT remote access and Micro Segmentation
• Hands‑on OT/ICS security engineering experience in industrial or critical infrastructure environments.
• Strong practical knowledge of NIST SP 800-82, the Purdue Model, and IEC 62443 in real OT environments.
• Experience conducting OT security assessments, configuration reviews, and capability gap analysis.
• Familiarity with OEM vendor tooling and regional and regulatory constraints affecting OT security
• Proven ability to document findings clearly - evidence registers, gap analysis, constraint registers.
• Comfortable working independently in complex, multi‑vendor environments.
• Experience in manufacturing, pharmaceutical, or life sciences OT environments.
• Familiarity with OT asset visibility tools - Claroty, Nozomi, Dragos or equivalent.
• ISA/IEC 62443 certification or equivalent.