Job Vacancy Service Transition Lead

London

CGI

Job position Service Transition Lead

Permanent

As soon as possible

London, England, United Kingdom

Published on 24/03/2026

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At CGI, we are shaping the future of critical national infrastructure by ensuring complex services are delivered seamlessly from design into live operation. As a Service Transition Lead, you will play a pivotal role in enabling high-quality, resilient services for one of our key clients, driving operational readiness and measurable outcomes. You will work at the heart of transformation, collaborating across delivery and operations to embed sustainable, supportable solutions. Here, you are empowered to take ownership, bring fresh thinking to complex challenges, and grow within a supportive, expert-led community that values innovation, accountability, and real impact.

CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named a UK ‘Best Employer’ by the Financial Times. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a CGI Partner not just an employee. We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant. Join us and you’ll be part of an open, friendly community of experts. We’ll train and support you in taking your career wherever you want it to go.

Due to the secure nature of the programme, you will need to hold UK Security Clearance or be eligible to go through this clearance. This is a hybrid position.

Candidate profile

In this role, you will lead the operational service design and transition of project deliverables into live environments, ensuring services are fully documented, supportable, and aligned with operational standards. You will act as a key bridge between delivery and service operations, ensuring minimal disruption to business-as-usual activities while enabling long-term service stability and performance.

You will take ownership of transition governance, working across multiple stakeholders and suppliers to ensure services are introduced effectively, while contributing to demand planning, resource forecasting, and continuous service improvement within a collaborative and supportive environment.

• Lead & Govern service transition activities across multiple projects

• Ensure & Embed operational readiness, documentation, and KBAs

• Manage & Coordinate Operational Service Design and Transition (OSD&T) into live environments with minimal disruption

• Collaborate & Influence stakeholders across delivery, operations, and suppliers

• Assess & Triage new service demand using impact assessment frameworks

• Plan & Forecast OSD&T resource demand and capacity

• Report & Analyse service performance, governance, and financials

• Support & Advise on escalation and service strategy across portfolios

Required qualifications to be successful in this role

You will bring strong experience in service transition or service introduction within complex enterprise or public sector environments, with a solid grounding in ITIL and service management frameworks. You will be confident managing stakeholders, suppliers, and competing priorities, with the ability to drive structured governance, operational readiness, and reporting across multiple initiatives.

• You should have strong experience in Service Transition / Service Introduction

• Strong understanding of ITIL and service management frameworks

• Proven ability to work in large enterprise or government environments

• Demonstrated stakeholder management across delivery and operations teams

• Experience working with multiple suppliers and delivery partners

• Ability to manage multiple concurrent projects and dependencies

• Strong reporting, governance, and operational planning skills

#LI-RJ1

Working environment

Together, as owners, let’s turn meaningful insights into action.

Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential because…

You are invited to be an owner from day 1 as we work together to bring our Dream to life. That’s why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company’s strategy and direction.

Your work creates value. You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.

You’ll shape your career by joining a company built to grow and last. You’ll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.

Come join our team—one of the largest IT and business consulting services firms in the world.

Discover CGI

London, England, United Kingdom

> 1000 employees

IT services

We are a global business with 91,500 professionals across hundreds of locations worldwide, providing end-to-end IT and business process services that drive our clients’ businesses. In the UK alone, we have around 6,000 member-partners working across 19 towns and cities, doing everything from writing complex code to designing sophisticated software solutions. The work we do powers some of the most ambitious projects that touch the lives of many. Our approach sets us apart, characterised by our proximity model, international presence, expertise, and operational excellence. We organise our operations within metro markets where our clients have concentrated footprints, empowering our local teams to build trusted, in-person relationships. As you build your career here, you’ll develop your skills, share your insights, and work side-by-side with colleagues and clients on innovative solutions that address the most complex issues. Our commitment to ownership, flexibility, and being approachable makes us easy to do business with. Join us, and together, as owners, let’s turn meaningful insights into action to meet the needs and balance the interests of our clients, shareholders, communities, and each other. Benefits: - Insurance coverage - Medical benefits - Pension plan - Member Assistant Programme - Check4Cancer - Flexible time off - Share Purchase Plan - Member discounts - Dental benefits - Vision benefits - Profit Participation Plan - Health and Wellbeing Programme

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Service Transition Lead

CGI