We’re looking for an OT Security Architect to help protect industrial control systems (ICS) and operational technology (OT) environments from cyber threats—while ensuring safety, availability, and regulatory compliance.
This role sits at the intersection of IT and OT, enabling secure digital operations across critical infrastructure environments such as utilities, energy, manufacturing, and transportation
OT Security Strategy & Governance
Define and implement OT cybersecurity strategies aligned to IEC 62443, NIST 800‑82, NIS D, and ISO 27001
Establish OT security governance models and maintain OT risk registers across multiple sites
Act as a trusted advisor to OT operations, engineering, and senior stakeholders
Design secure OT network architectures aligned to the Purdue Model (Levels 0–3.5)
Define and validate secure IT/OT integration patterns (segmentation, data flows, remote access)
Secure OT digital transformation initiatives (e.g. historians, analytics platforms)
Threat & Vulnerability Management
Conduct OT‑specific risk, vulnerability, and penetration assessments across SCADA, DCS, and PLC environments
Implement vulnerability and patching strategies suitable for safety‑critical systems
Support OT incident response and forensic investigations
Security Controls Implementation
Deploy and operate OT security technologies, including:
Firewalls and segmentation at Levels 2 & 3
Secure remote access solutions
Removable media controls and data diodes
Support deployments across geographically dispersed and remote sites
Compliance & Regulatory Assurance
Support compliance with NIS D and sector‑specific regulations
Prepare audit evidence, security reports, and remediation plans
Translate regulatory requirements into practical, site‑level controls
Stakeholder & Delivery Management
Work closely with plant operators, OT engineers, OEMs, vendors, and system integrators
Lead or support multi‑site OT security uplift programmes
Deliver OT security training and awareness sessions
What You Bring
Required Experience & Skills
Strong hands‑on experience in OT / IC S / SCADA / DCS environments
Deep understanding of industrial networking, protocols, and architectures
Proven experience delivering OT security assessments, designs, and implementations
Strong knowledge of OT security standards:
IEC 62443
NIS D
Experience working in critical infrastructure or highly regulated environments
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