Senior Principal Architect - Security Architecture & Solution Engineering - OT Security
Core
Design and own OT security architecture for global pharmaceutical manufacturing, laboratory, and research estates, ensuring GxP validation and safety system boundaries.
Role type
Senior Principal Architect (OT Security & Solution Engineering)
Builds
OT security reference designs, zone/conduit segmentation, vulnerability management architectures, and detection patterns for SOC handoff.
Domain
Pharmaceutical manufacturing, Life Sciences, Industrial Control Systems (ICS/SCADA)
Deliverable
production ML models
Required skills
IEC 62443 zone and conduit design, Purdue model segmentation, OT vulnerability management with compensating controls, OT asset discovery architecture, OT detection architecture, GxP-validated change control, AI/ML for OT security, team leadership across geographies
Preferred skills
Leading enterprise-scale OT transformation programmes, NIS2 scoping and reporting, OT risk posture reporting to executive leadership, partnering with Cyber Defence on threat exposure management
Technologies
Claroty, Dragos, Nozomi Networks, unidirectional gateways, data diodes, ICS, SCADA, PLC security patterns
Responsibilities
Own OT security architecture across the global manufacturing, laboratory and research estate; Own IEC 62443 zone and conduit design and Purdue model network segmentation; Own safety system boundary design and the constraints that follow from GxP validation; Own OT vulnerability management architecture where standard IT patching cannot be applied; Own OT asset discovery architecture across sites with incomplete inventories; Own OT detection architecture for handoff to the Cyber Defence SOC; Lead four OT architects across the US, UK and India; Lead the OT architecture contribution to the Future Ready OT programme; Evaluate and select OT security tooling against the architecture model; Lead your team in using approved AI tools to improve productivity
Seniority
Principal, hands-on IC with strategic team leadership
