Lead Architect - #2163671

Job Title: Lead Architect - OT, IoT & Edge

Duration: long-term contract

Location: Sheffield-Based Hybrid

We are looking for an experienced OT, IoT & Edge Architect to lead architecture across smart buildings, operational technology and protective security systems. The role focuses on securing legacy and live-building environments, managing third-party connectivity, and ensuring solutions are resilient, compliant and aligned with IEC 62443 security principles.

Key Responsibilities:

• Define secure architecture patterns for OT, IoT, smart buildings and protective security.
• Design OT network segmentation, zoning and secure remote access solutions.
• Review and assure solution designs, identifying security risks and control gaps.
• Produce architecture diagrams, decision records and audit documentation.
• Collaborate with Cybersecurity, Networks, Real Estate and external suppliers.

Key Skills & Experience:

• Strong experience in OT, IoT, Edge or security architecture.
• Knowledge of IEC 62443, OT segmentation and industrial cybersecurity.
• Experience with smart buildings, legacy systems and third-party connectivity.
• Understanding of secure remote access, risk management and architecture governance.
• Ability to work with multiple technical teams and suppliers.