Toronto, On Lead python full stack data engineer Jobs – 118 Openings This Week

Agentic AI Technical Lead
Citi —Mississauga, ON
- $120,800–$170,800 a year
- Full-time
- Hybrid work
- Computer Science
- Master's degree
- AWS
Machine Learning Engineering Co-op
VCycene Inc. —Markham, ON
- $20–$25 an hour
- Full-time
- Computer Science
- Engineering
- C++
- Flexible schedule
Quick apply
5d
Site Reliability Engineer (SRE), Cloud Operations
Royal Bank of Canada —Toronto, ON
- Full-time
- Azure
- DevOps
- AWS
1d
Sr. Software Engineer, Backend
Pinterest —Toronto, ON
- Hybrid work
- Computer science
- Computer Science
- Java

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Machine Learning Engineering Co-op
VCycene Inc. —Markham, ON
Currently enrolled in a co-op or internship program in Computer Science, Engineering, Mechatronics, Environmental Engineering, or a related field.
$20–$25 an hour
Quick apply
5d
Robotics - Software Development Engineer Intern - 2026 - Toronto
Amazon Development Centre Canada ULC - K03 —Toronto, ON
Leverage and contribute to the development of GenAI and AI-powered tools to enhance development productivity while staying current with emerging technologies.

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Machine Learning Engineering Co-op
VCycene Inc. —Markham, ON
Currently enrolled in a co-op or internship program in Computer Science, Engineering, Mechatronics, Environmental Engineering, or a related field.
$20–$25 an hour
Quick apply
5d

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Agentic AI Technical Lead

Citi -
Mississauga, ON

Apply Now

Job details

Full-time
$120,800–$170,800 a year

Qualifications

Law
Computer Science
MCP
Master's degree
AWS
Bachelor's
Neo4j
Angular
APIs
AI
Leadership
Python
Data Science

Full job description

Discover your future at Citi

Working at Citi is far more than just a job. A career with us means joining a team of approximately 219,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.

Job Overview

We are seeking an expert Hands-On Technical Lead to serve as the player-coach for our Services AI Platform engineering team. In this role, you will split your time between writing production-grade code and guiding the technical strategy of the platform. You will build and scale multi-tenant agentic ecosystems, develop custom fine-tuning applications, and ensure the platform adheres to our core principles (Trust, Adoption, Cost, Operations, and Scalability). You will lead by example, setting the standard for code quality and architectural purity while driving high-impact business use cases.

Key Responsibilities

1. Core Platform & Application Development

Full-Stack Engineering: Lead the development of custom AI platform components, including full-stack applications utilizing Python and Angular (e.g., building and maintaining internal LLM/SLM fine-tuning planes and experiment tracking dashboards).

Agentic Frameworks: Code and optimize multi-tenant intelligent agents utilizing modular orchestration patterns such as ReAct and ReWOO, and frameworks like Google's Agent Development Kit (ADK).

Strict Architectural Implementation: Develop and enforce clean, decoupled integration layers. You will build Model Context Protocol (MCP) servers ensuring a strict communication flow: Agents interact solely with MCP servers, and MCP servers interact solely with APIs to retrieve data. Direct database access from agents or MCP servers is strictly prohibited.

2. Advanced Data Retrieval & Logic Engineering

Next-Generation RAG: Write the data ingestion and retrieval code for advanced RAG architectures, including Knowledge Graph RAG (GraphRAG), LightRAG, and hierarchical summary trees (RAPTOR).

Vector & Graph Integrations: Develop seamless integrations with graph and vector databases (such as Neo4j and pgvector) to power complex, thematic data retrieval.

Prompt & Intent Engineering: Design robust LLM instructions and classification logic to prevent collisions in complex workflows, ensuring mutually exclusive intents are handled with high precision.

3. Use Case Development & Forward Deployment

SME Collaboration: Act as a Forward Deployed Engineer (FDE), working directly with Subject Matter Experts (SMEs) on business and domain understanding to accurately translate complex enterprise workflows into automated, agent-driven code.

Seamless Integration: Partner with UI and workflow integration developers to ensure the backend agentic logic connects flawlessly with user-facing layers and existing enterprise APIs

Qualifications:

10+ Years experience
5+ years of experience in AI/ML, with at least 2+ years in Generative AI.
3+ years of leadership experience managing technical teams and delivering complex software or AI solutions.
Extensive hands-on experience with AWS services and infrastructure related to AI/ML.
A strong portfolio of projects showcasing the successful delivery of AI solutions into a production business environment.

Education

Bachelor’s or Master’s degree in Computer Science, Data Science, AI, or equivalent experience.

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 Skills

Please see the requirements listed above.

Other Relevant Skills

For complementary skills, please see above and/or contact the recruiter.

Automated Processing and AI

We 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 skills and abilities with a specific job opening. Additionally, if you so choose, or consent, we can match your skills and abilities to other suitable roles at Citi.

Importantly, all our hiring processes and decisions, including determining your suitability for a role, are conducted, checked, and decided by individuals. Our automated processing and AI do not involve relying on automatic or autonomous decision-making. Please refer to any Jurisdictional Considerations, with specific provisions for your country (where relevant) for further details.

This job opening is for an existing job vacancy.

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.

Apply Now

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lead python full stack data engineer jobs in toronto, on

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