Service Design & Transition Lead

Service Design & Transition Lead – OT/IT | Critical Infrastructure

A fantastic opportunity for an experienced Service Design & Transition Lead. You\’ll ensure new and enhanced Operational Technology (OT) and IT services are designed, transitioned, and Embedded into live operations safely, securely, and with minimal disruption.
This role plays a key part in supporting the reliability and compliance of critical national infrastructure within an increasingly digital environment.

Key Responsibilities

• Lead the end-to-end service design and service transition for new OT and IT services.
• Develop clear service support models, covering incident response, maintenance, monitoring, and third‑party engagement.
• Build and oversee transition plans to ensure operational readiness and minimise impact on live services.
• Translate technical designs (architecture, ODS/IDS) into practical, supportable service documentation.
• Work across architecture, engineering, operations, cyber, and suppliers to ensure service assurance, risk mitigation, and regulatory compliance.
• Support continuous improvement across service management processes.

Skills & Experience Required

• Proven experience in service design/transition within regulated or critical infrastructure sector (manufacturing, defence, energy, utilities, transport, etc.).
• Strong knowledge of Operational Technology (OT) and IT/OT integration (SCADA, control systems, substation automation).
• Solid understanding of ITIL v4 (Service Design, Transition, Continual Improvement).
• Ability to develop operational support models and manage third‑party suppliers.
• Excellent communication and stakeholder engagement skills with a practical, problem‑solving mindset.