OT Solutions Architect

Your role OT Functional Architect operates at enterprise and practice level to translate operational reality within water and utilities environments into robust functional and non-functional requirements for enterprise SCADA and IT/OT convergence solutions. The role ensures that proposed architectures are safe, operable, maintainable, and resilient, while enabling scalable transformation across multi-site estates with minimal operational disruption. Key responsibilities

• Lead enterprise and site-level discovery of OT capabilities, including PLC, SCADA, HMI, control strategies, alarm philosophies, interlocks, and safety constraints.
• Capture and model operational processes across the asset lifecycle, including commissioning, maintenance, incident response, overrides, escalation, and ICC-to-site handover.
• Define functional and non-functional requirements for remote monitoring and control, including authorisation models, auditability, fallback modes, and resilience expectations.
• Identify, assess, and quantify migration constraints across brownfield environments, including cutover strategies, downtime tolerances, rollback requirements, and legacy/vendor limitations.
• Develop site categorisation models (criticality, complexity, connectivity) and readiness assessments to inform phased enterprise rollouts.
Your profile You'll have a strong hands-on background in OT/ICS engineering within water or utilities, with direct experience of PLC and SCADA integration, commissioning, and operating safely in regulated environments. You're comfortable working across complex brownfield estates and multi-vendor OT landscapes, and can translate operational realities into clear functional requirements and architectural inputs. You work confidently with a wide range of stakeholders and stay aware of emerging IT/OT technologies and patterns. Key strengths
• OT/ICS engineering expertise, including safe change, alarm management, and operational governance.
• Ability to bridge operations, engineering, and leadership, with awareness of modern IT/OT and digital trends.
Requirements
• All roles will require a level of security clearance; BPSS, Security Clearance, or Developed Vetting.
Equal Opportunity Capgemini is a Disability Confident Employer (Level 2) under the UK Government's Disability Confident scheme, and offers interview opportunities to candidates who declare a disability and meet essential criteria.

You'll have a strong hands-on background in OT/ICS engineering within water or utilities, with direct experience of PLC and SCADA integration, commissioning, and operating safely in regulated environments. You're comfortable working across complex brownfield estates and multi-vendor OT landscapes, and can translate operational realities into clear functional requirements and architectural inputs. You work confidently with a wide range of stakeholders and stay aware of emerging IT/OT technologies and patterns.,
• Ability to bridge operations, engineering, and leadership, with awareness of modern IT/OT and digital trends., All roles will require a level of security clearance; BPSS, Security Clearance, or Developed Vetting.