## AI Lead Engineer, Technical Lead
- Services AI PlatformApply: Hybrid: Mississauga Ontario Canada: Full time: Posted Today: 26999956Citi is hiring an AI Lead Engineer, Technical Lead to build and shape the engineering foundation of its Services AI Platform, a multi-tenant, production-grade ecosystem where agentic AI meets enterprise scale. This player-coach role combines hands-on coding with technical direction, giving you ownership over a platform built for trust, resilience, and scalability. You will turn complex enterprise workflows into intelligent, automated systems that deliver measurable impact across Citi's global operations.
Responsibilities
* Build full-stack AI platform components using Python and Angular, including large language model fine-tuning interfaces and experiment tracking dashboards.
* Design and optimize multi-tenant intelligent agents using modular orchestration patterns such as ReAct and ReWOO to power scalable, production-ready agentic workflows.
* Build Model Context Protocol servers that enforce clean, decoupled communication layers so agents interact only through defined API boundaries.
* Develop advanced retrieval-augmented generation pipelines, including Knowledge Graph RAG, LightRAG, and RAPTOR hierarchical summary architectures, to enable sophisticated enterprise data retrieval.
* Integrate vector and graph databases such as Neo4j and pgvector to support complex, thematic data retrieval at platform scale.
* Design precise prompt and intent classification logic that prevents workflow collisions and ensures accurate handling of agent instructions.
* Partner with subject matter experts to translate domain knowledge into automated, agent-driven solutions.
* Collaborate with UI and API teams to deliver seamless end-to-end integrations across the platform.




Required Qualifications & Skills
* 10 or more years of software engineering experience, including at least 5 years focused on AI and machine learning solutions delivered in production environments.
* 2 or more years of hands-on experience in generative AI, including large language model development, retrieval-augmented generation, and prompt engineering.
* 3 or more years leading technical teams and owning end-to-end delivery of complex software or AI platforms.
* Deep practical experience with AWS infrastructure and services for AI and machine learning workloads.
* A demonstrated portfolio of AI solutions deployed into live business environments, showing both technical depth and delivery ownership. Education* Bachelor’s or Master’s degree in Computer Science, Data Science, AI, or a related field

What We Offer
At Citi, you will work at the forefront of enterprise AI engineering within a global platform team that values technical excellence, collaboration, and meaningful business impact. This is a role where your code ships to production, your architectural decisions shape the platform, and your leadership directly influences the capability and performance of the team around you.
* Hybrid working model with 3 days in the office and 2 days working remotely, giving you structure alongside genuine flexibility.
* Access to cutting-edge AI infrastructure, tools, and frameworks that keep you at the leading edge of the field.




* Continuous learning and development support, including access to technical training, industry conferences, and structured growth opportunities pathways.
* The opportunity to lead high-impact engineering at global scale, with your work directly influencing how Citi builds and deploys intelligent automation across the enterprise.
* Competitive compensation and a comprehensive financial wellbeing package reflective of a Vice President-level position at a leading global institution.
* Wellbeing support programs that help you maintain balance and perform at your best over the long term.
Build the AI platform that powers Citi's next generation of intelligent automation — apply now and bring your engineering leadership to one of the most technically ambitious platforms in global financial services------------------------------------------------------## Job Family Group:Technology------------------------------------------------------## Job Family:Applications Development------------------------------------------------------## Time Type:Full time------------------------------------------------------## Primary Location Full Time Salary Range:$120,800.00
- $170,800.00------------------------------------------------------## Most Relevant SkillsPlease see the requirements listed above.------------------------------------------------------## Other Relevant SkillsFor complementary skills, please see above and/or contact the recruiter.------------------------------------------------------## Automated Processing and AIWe use automated processing, including artificial intelligence, for our legitimate business interests (or our reasonable and appropriate business purposes) to identify and align the candidate's ski

📌 AI Lead Engineer, Technical Lead (Mississauga)
🏢 Citigroup
📍 Mississauga