Senior Agentic AI Engineer: Context & RAG Architect

Citigroup Inc.; Mississauga; On-site; CAD 168,000 - 238,000; Full time

Job summary

Citigroup Inc. in Mississauga, Canada, seeks a Senior Generative AI Developer to design, build, and integrate cutting‑edge agentic AI solutions on enterprise controls platforms. You will work with cross‑functional teams to deliver scalable, grounded AI applications leveraging foundation models, RAG, and graph‑based reasoning.

Strong architecture, governance, and mentorship are essential. The role emphasizes production readiness, observability, and ethical AI practices, with collaboration across

Qualifications

• 6+ years of experience in AI/software development.
• Strong skills in Python and API development.
• Deep expertise in core GenAI concepts: foundation models, embeddings, tokenization.
• Proficiency with major GenAI APIs and orchestration frameworks.
• Advanced prompt and context engineering capabilities.
• Experience with vector databases and large‑scale retrieval.
• Hands‑on experience with RAG systems and graph data tooling.
• Experience with Google ADK and other agent frameworks.
• Knowledge of multi‑agent orchestration patterns and harness engineering.
• Experience with AWS or equivalent cloud infrastructure.

Responsibilities

• Collaborate with AI architects and stakeholders to design generative and agentic AI solutions.
• Architect context engineering strategies for reliable, efficient production workflows.
• Design and implement prompt engineering and Retrieval‑Augmented Generation methods.
• Build and optimize RAG systems including multi‑vector retrieval and re‑ranking pipelines.
• Design knowledge graphs and Graph RAG pipelines for multi‑hop reasoning and explainability.
• Develop agentic workflows using ADK and other frameworks, including tool calling and memory.
• Implement governance, safety, and data privacy measures in agent systems.
• Mentor junior engineers and contribute code reviews.

Skills

Python

Generative AI

Agentic AI

Context engineering

Prompt engineering

RAG

Knowledge graphs

Multi‑agent orchestration

LangChain

Docker

Education

Bachelor’s degree

Master’s degree

Tools

Google ADK

Kubernetes

Neo4j

ArangoDB

LlamaIndex

OpenAI APIs

Job description

Citigroup Inc. in Mississauga, Canada, seeks a Senior Generative AI Developer to design, build, and integrate cutting‑edge agentic AI solutions on enterprise controls platforms. You will work with cross‑functional teams to deliver scalable, grounded AI applications leveraging foundation models, RAG, and graph‑based reasoning.

Strong architecture, governance, and mentorship are essential. The role emphasizes production readiness, observability, and ethical AI practices, with collaboration across