IT/OT Solution Architect

Capgemini Engineering; England; On-site; GBP 90,000 - 120,000; Full time

Job summary

Capgemini is seeking an IT/OT Solution Architect to design secure, scalable solutions bridging OT, IT and cloud platforms.

You will translate business and engineering requirements into end-to-end architectures, guiding delivery teams while balancing innovation with cybersecurity and operational resilience.

Qualifications

• Experience translating operational requirements into scalable IT/OT architectures.
• Strong stakeholder engagement and leadership in architecture workshops.
• Knowledge of security, resilience and maintainability in industrial IT/OT solutions.

Responsibilities

• Define end-to-end IT/OT solution architectures across OT, edge, enterprise, data and cloud.
• Design integration strategies using OPC UA, MQTT, APIs and event-driven architectures.
• Provide design assurance and leadership to engineering teams, suppliers and stakeholders.
• Develop reusable architecture patterns and data models across OT, networking, cybersecurity, cloud and data domains.

Skills

IT/OT architecture

Stakeholder management

Cloud technologies

Security and resilience

Tools

OPC UA

MQTT

APIs

Event-driven patterns

Job description

As an IT/OT Solution Architect, you will lead the design of secure, scalable and supportable solutions that bridge operational technology, enterprise IT and cloud platforms. Working across industrial environments, you will translate business, operational and engineering requirements into end-to-end architectures spanning PLCs, RTUs, SCADA, historians, OT networks, industrial edge platforms, enterprise integration and cloud services. You will play a key role in enabling reliable industrial data flows, establishing integration standards and guiding delivery teams to implement modern IT/OT convergence solutions that balance innovation with operational resilience, cybersecurity and maintainability.

Key Responsibilities

• Define end-to-end IT/OT solution architectures that connect operational systems, industrial edge technologies, enterprise platforms and cloud services.
• Design integration and interoperability strategies using technologies and patterns such as OPC UA, MQTT, APIs, event-driven architectures and Unified Namespace.
• Provide technical leadership and design assurance to engineering teams, suppliers and stakeholders, ensuring solutions are secure, scalable and aligned with architectural standards.
• Develop reusable architecture patterns, standards and industrial data models while coordinating decisions across OT, networking, cybersecurity, cloud and data domains to support consistent and resilient deployment at scale.

Your profile

You are an experienced IT/OT Solution Architect with a strong understanding of industrial automation, enterprise integration and cloud technologies. You can translate complex operational and business requirements into scalable, secure and resilient architectures that connect industrial systems with enterprise and cloud platforms. Combining technical depth with strong stakeholder engagement skills, you are comfortable leading architecture workshops, challenging design decisions and providing technical direction across multidisciplinary teams. You bring the ability to balance innovation with the operational realities of industrial environments while driving consistent, supportable and future-ready IT/OT solutions.

Key Requirements

• Strong understanding of industrial automation and OT environments, including PLCs, RTUs, SCADA, historians, OT networking and the operational requirements of live production systems.
• Proven solution architecture experience across OT, edge, enterprise, data and cloud environments, with expertise in integration technologies and patterns such as OPC UA, MQTT, APIs and event-driven architectures.
• Experience designing scalable, resilient and secure industrial data solutions, including data contextualisation, transformation, store-and-forward capabilities, recovery mechanisms and other critical non-functional requirements.
• Excellent consulting, communication and technical leadership skills, with the ability to lead discovery workshops, produce architecture artefacts, provide design assurance and coordinate engineers and specialists across OT, cloud, data and cybersecurity domains.

Make it real - what does it mean for you?

Open access to digital learning platforms

Active employee networks promoting diversity, equity and inclusion like OutFront, CapAbility or Women@Capgemini

Capgemini is proud to be a Disability Confident Employer (Level 2) under the UK Government’s Disability Confident scheme. As part of our commitment to inclusive recruitment, we will offer an interview to all candidates who

Declare they have a disability, and

Meet the minimum essential criteria for the role.

Please opt in during the application process.

Capgemini. Make it real.

Need to know

All roles will require a level of security clearance; BPSS OR Security Clearance OR Developed Vetting.

You can bring your whole self to work. At Capgemini building an inclusive future is part of everyday life and will be part of your working reality. We have built a representative and welcoming environment, for everyone.

About Capgemini

Capgemini is an AI-powered global business and technology transformation partner, delivering tangible business value. We imagine the future of organisations and make it real with AI, technology and people. With our strong heritage of nearly 60 years, we are a responsible and diverse group of over 420,000 team members in more than 50 countries. We deliver end-to-end services and solutions with our deep industry expertise and strong partner ecosystem, leveraging our capabilities across strategy, technology, design, engineering and business operations. The Group reported 2025 global revenues of €22.5 billion.