Job Vacancy Agentic AI Engineer

United Kingdom

CGI

Job position Agentic AI Engineer

Permanent

As soon as possible

United Kingdom

Published on 12/03/2026

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At CGI, we are shaping the future of intelligent systems by transforming emerging AI capabilities into real-world solutions that deliver measurable value for our clients. As an Agentic AI Engineer, you will design and engineer autonomous, AI-powered systems that integrate Large Language Models into scalable, enterprise-grade architectures. Working alongside experienced architects, engineers and AI specialists, you will help organisations unlock the potential of agent-based technologies to solve complex challenges and drive innovation. This role offers the opportunity to build impactful AI solutions, contribute to evolving engineering practices and help define how agentic AI is delivered responsibly, securely and at scale across industries.

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.

This is a hybrid position.

Candidate profile

In this role, you will design and build intelligent agent-based systems that harness the power of Large Language Models within robust, scalable software architectures. You will work closely with architects, engineers and AI specialists to translate complex business challenges into secure, production-ready AI solutions. Your work will focus on moving beyond experimentation to deliver reliable, maintainable and observable systems that create tangible value for clients.

You will take ownership of delivering high-quality engineering outcomes while contributing to the evolution of agentic AI practices across CGI. With the support of a collaborative community of experts, you will help shape innovative AI solutions that integrate seamlessly into enterprise environments and support responsible, scalable adoption of emerging technologies.

Required qualifications to be successful in this role

To succeed in this role, you should be a strong software engineer with practical experience building production-grade systems and integrating Large Language Models into real-world applications. You will bring a pragmatic, engineering-first mindset to developing AI-powered systems and be comfortable working in collaborative, agile environments while navigating rapidly evolving technologies.

Essential qualifications

• Strong software engineering experience in Python, TypeScript or .NET

• Proven experience integrating Large Language Models into production systems

• Strong understanding of prompt orchestration, tool usage, and LLM interaction patterns

• Experience implementing state management, memory strategies and guardrails in AI systems

• Familiarity with observability, evaluation and performance optimisation for LLM solutions

• Experience using LLM APIs such as OpenAI, Azure OpenAI or similar

• Understanding of secure software development and enterprise architecture principles

• Experience deploying solutions to cloud platforms

• Ability to communicate complex technical concepts clearly to technical and non-technical stakeholders

#LI-MW2

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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Agentic AI Engineer

CGI