Lead AI Engineer in London

Lead AI Engineer in London

London Full-Time On-site
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London, England, United KingdomCategory: TechnologyCompany: CitiAbout the Team:Build the next generation of agentic AI.The Applied AI and Agents Factory brings together ambitious engineers to turn advanced AI capabilities into production-ready solutions. Working directly with business and technology teams, you’ll tackle complex engineering challenges, build intelligent agents and take ideas from initial concept through to live deployment.This is an opportunity to work at the cutting edge of AI engineering, developing systems that go beyond conversational tools to reason, plan and execute multi-step workflows. You’ll take ownership of the full engineering lifecycle, from agent architecture and orchestration to enterprise integration, security and observability.With a strong focus on hands-on engineering, collaboration and rapid delivery, the Factory gives you the opportunity to solve challenging technical problems, influence architectural decisions and help shape reusable tools and engineering standards adopted across Citi.If you want to do more than experiment with AI — and build, deploy and scale systems that deliver real business value — this is where you can make your mark.About the Role:As a Lead Forward Deployed AI Engineer, you’ll provide senior technical leadership within an embedded business engineering team, architecting and delivering sophisticated, production-grade AI agent systems for critical banking workflows. You’ll also mentor fellow engineers and help turn successful solutions into reusable enterprise capabilities, extending the impact of your work well beyond individual projects.Key ResponsibilitiesLead technical architecture and hands-on delivery within embedded business engineering teams, translating complex business challenges into scalable, production-ready AI solutions.Design, build and deploy end-to-end agentic workflows using Python, ADK, LangGraph and the Arc platform.Engineer integrations between AI agents and core banking systems, enterprise APIs, databases and microservices, including custom Model Context Protocol (MCP) servers.Contribute proven architectures, reusable components and engineering blueprints back to Citi’s enterprise AI platform, accelerating delivery and adoption across the firm.Champion responsible AI engineering, ensuring solutions meet security, regulatory, governance and risk-management requirements.Skills & ExperienceExtensive software engineering experience, with a strong background in backend and distributed systems, alongside proven experience building and deploying production-grade LLM and agentic AI applications.Expert-level Python skills, including asynchronous programming with asyncio, state machines and the design of complex application workflows.Proven ability to integrate enterprise APIs, relational and NoSQL databases, and event-streaming platforms such as Kafka into complex application architectures.Practical knowledge of agentic AI architectures, multi-step reasoning, tool orchestration and production LLM application development.Experience leading technical design, resolving complex engineering challenges and setting high standards for software quality, reliability and security.Every day there will be new challenges that will help you develop new skills that can drive your career. By joining Citi London, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as:27 days annual leave (plus bank holidays)A discretional annual performance related bonusPrivate Medical Care & Life InsuranceEmployee Assistance ProgramPension PlanPaid Parental LeaveSpecial discounts for employees, family, and friends Visit our Global Benefits page to learn more. We want the best talent around the world to be energized to join us, motivated to stay and empowered to thrive. #Applications Development------------------------------------------------------Time Type:Full time------------------------------------------------------Most Relevant Skills Please see the requirements listed above.------------------------------------------------------Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law.If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi.View Citi’s EEO Policy Statement and the Know Your Rights poster.

Lead AI Engineer in London employer: Citigroup

Citi is an exceptional employer, offering a dynamic work environment in the heart of London where innovation meets collaboration. As a Sales Director, you will benefit from extensive training and mentorship opportunities, fostering your professional growth while working alongside industry leaders in FX Sales. With a strong commitment to integrity and inclusivity, Citi provides a supportive culture that empowers employees to excel and drive meaningful results for clients.

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Contact Details:

Citigroup Recruitment Team