OT Security Architect (Cybersecurity)

TL;DR

OT Security Architect (Cybersecurity): Shaping and enhancing security monitoring, detection and visibility across complex operational technology environments with an accent on critical national infrastructure. Focus on designing secure OT architectures, reviewing network segmentation, and aligning solutions with NCSC CAF and IEC 62443 frameworks.

Location: Hybrid (Aberdeen or Glasgow, UK)

Company

hirify.global is a leading provider of business technology solutions specializing in the Energy, Public, and Finance sectors.

What you will do

• Design and assess secure OT architectures across Purdue Levels 3–3.5.
• Review network segmentation, security controls, and monitoring integrations within industrial environments.
• Conduct assessments of OT SIEM platforms, logging coverage, and detection maturity.
• Define OT logging and telemetry strategies, including data sources and collection methods.
• Ensure security solutions align with NCSC CAF and IEC 62443 frameworks.
• Collaborate with SOC teams and stakeholders to develop security roadmaps and technical documentation.

Requirements

• Proven experience in OT security architecture, industrial cybersecurity, or OT consultancy.
• Strong understanding of the Purdue Model and industrial network segmentation principles.
• Experience assessing or implementing SIEM platforms within OT environments.
• Familiarity with SCADA environments and OT protocols.
• Knowledge of security frameworks such as NCSC CAF and IEC 62443.
• Must be based in or able to work hybridly from Aberdeen or Glasgow, UK.

Nice to have

• Experience working within critical national infrastructure, utilities, energy, or industrial sectors.
• Security certifications such as CISSP, GICSP, GRID, or SABSA.

Culture & Benefits

• Personalized career development plans tailored to individual goals and aspirations.
• Flexible working arrangements to support work-life balance.
• Generous annual leave allowance and enhanced family-friendly benefits.
• Comprehensive pension scheme and access to private health, well-being, and insurance schemes.
• Inclusive workplace culture emphasizing diversity and equal opportunities.