Operational Technology (OT) Architect

The Role: OT Architect Position Type: Contract Inside IR35 Remote work option Available: Remote Job Description: SKILLS/COMPETENCIES Essential Deep, real-world OT/ICS architecture experience within industrial, manufacturing, utilities, or critical infrastructure environments. Proven experience acting as a technical design authority or lead architect for OT networks, security architecture, and operational resilience programmes. Strong understanding of IT/OT convergence, architectural integration patterns, and associated risk. Expert working knowledge of IEC 62443, including zone/conduit modelling, and its practical application in target-state OT architecture design. Practical understanding of industrial protocols (eg, Modbus, DNP3, OPC-UA, Profinet) and their architectural implications for segmentation and secure design. Experience defining and owning reference architectures, technical standards, and design principles across large-scale OT/critical infrastructure estates. Strong OT risk management capability, with the ability to translate threat and risk assessments into architectural decisions and mitigation designs. Experience working with, and providing technical governance over, integrators, OEM vendors, and engineering partners. Familiarity with enterprise architecture frameworks/practices (eg, TOGAF, SABSA) and experience presenting designs to architecture review boards or senior technical governance forums is advantageous. Desirable Experience within a ..... full job details .....