OT Cyber Security Architect — Secure Industrial Ops

PA Consulting; City of Westminster; Hybrid; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Health and lifestyle perks

25 days annual leave

Generous pension

Community involvement

Annual bonus

PA share ownership

Job summary

PA Consulting in the United Kingdom is seeking an OT Cyber Security Architect to lead secure OT environments across complex operations. You will design architectures, translate cyber risk into actionable controls, and collaborate with senior security, engineering, and client teams in a fast-paced consulting setting.

Hybrid working with two days in the office per week is standard. The role requires strong knowledge of IEC 62443, NIST CSF, OT networks, and regulatory requirements; PA supports

Qualifications

• Strong experience designing OT security architectures in critical infrastructure or manufacturing sectors.
• Deep understanding of ICS, SCADA, OT networks and safety-critical constraints.
• Experience applying IEC 62443, NIST CSF, NCSC CAF, ISO 27001 and related regulations.
• Proven ability to translate cyber risk into architecture decisions and roadmaps.

Responsibilities

• Architect and design secure OT environments aligned to global standards and regulations.
• Translate cyber risk assessments into target-state architectures and pragmatic roadmaps.
• Define secure IT/OT integration patterns with segmentation and access control.
• Lead OT security transformation workstreams including remote access and monitoring.

Skills

OT security architecture

Industrial control systems

Threat modeling

Stakeholder communication

Tools

Nozomi

Claroty

Dragos

Defender IoT

Job description

PA Consulting in the United Kingdom is seeking an OT Cyber Security Architect to lead secure OT environments across complex operations. You will design architectures, translate cyber risk into actionable controls, and collaborate with senior security, engineering, and client teams in a fast-paced consulting setting.

Hybrid working with two days in the office per week is standard. The role requires strong knowledge of IEC 62443, NIST CSF, OT networks, and regulatory requirements; PA supports