OT Security Architect

Anson McCade; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

Anson McCade is seeking an experienced OT Cyber Security Architect to join its growing Cyber Security practice in the UK. The role focuses on delivering secure, practical architectures across complex operational environments in sectors such as energy, utilities, and manufacturing.

Candidates should have consultancy experience and a background in cyber security, technology or management consulting, with a proven track record working directly with clients.

Qualifications

• OT cyber security architecture experience within a consultancy environment.
• Strong client-facing communication and stakeholder management.
• Experience working with senior security, engineering and operational teams.
• Strong analytical and problem-solving capabilities.
• Deep understanding of ICS, SCADA and OT networks.
• Experience with IEC 62443, NIST CSF, NCSC CAF, ISO 27001 and/or NIS/NIS2.

Responsibilities

• Design and deliver OT/ICS cyber security architectures across critical environments.
• Translate cyber risk into target-state architectures, controls and roadmaps.
• Design secure IT/OT integration including segmentation and monitoring.
• Lead OT security initiatives on secure remote access, vulnerability management and monitoring.
• Advise senior stakeholders on OT risk, resilience and regulatory requirements.
• Support technology selection and implementation of practical security solutions.

Skills

OT security architecture

Consultancy experience

Client-facing communication

OT/ICS networks

Security risk to architecture

Job description

We are looking for an experienced OT Cyber Security Architect to join a growing Cyber Security practice, delivering secure and practical architectures across complex operational environments.

Consultancy experience is essential. Candidates should have a background in cyber security, technology or management consulting, with proven experience working directly with clients.

Key Responsibilities

• Design and deliver OT/ICS cyber security architectures across critical infrastructure, energy, utilities, manufacturing, transport or similar environments.
• Translate cyber risk assessments into target-state architectures, security controls and implementation roadmaps.
• Design secure IT/OT integration, including segmentation, zoning, access control, monitoring and resilience.
• Lead OT security initiatives covering secure remote access, vulnerability management and protective monitoring.
• Advise senior security, operational and engineering stakeholders on OT risk, resilience and regulatory requirements.
• Support technology selection and implementation of practical security solutions.

Key Requirements

• Strong OT cyber security architecture experience within a consultancy environment.
• Deep understanding of ICS, SCADA and OT networks.
• Experience with IEC 62443, NIST CSF, NCSC CAF, ISO 27001 and/or NIS/NIS2.
• Proven ability to turn cyber risk into practical architecture decisions and implementation plans.
• Strong client-facing communication and stakeholder management skills.
• Experience working with senior security, engineering and operational teams.
• Strong analytical and problem-solving capabilities.

Desirable

Experience with Nozomi, Claroty, Dragos, Microsoft Defender for IoT or similar OT security platforms.

Security Requirements

Candidates must be able to meet applicable UK security clearance requirements. Some positions require at least five years of continuous UK residency.