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Added 6 days ago
Lead Infrastructure Architect
Financial Services Regulatory Authority (FSRA)
Toronto, ON · FSRA Head Office
Full-time
At FSRA, our vision is to ensure financial safety, fairness, and choice for Ontarians. As a financial services regulator, we’re passionate about protecting consumers. Our principles-based…
Added 2 days ago
Financial Transformation, Senior Associate
PwC
Toronto, ON · Ottawa, ON · Calgary, AB
Full-time
A career in our Finance Transformation practice, within Consulting services, will provide the opportunity to work alongside Finance leaders to optimize the structure of their finance…
Added 2 days ago
Senior Data Scientist
Ontario Securities Commission
Toronto, ON · CA ON Toronto
Full-time
Architect, prototype, test and deliver complex cloud-based analytics solutions that demonstrate business value quickly.
Added 2 days ago
Senior Architect, Defence Projects
Architecture49 Inc.
Ottawa, ON
Full-time
Nestled in the heart of Canada’s capital city, our region boasts a rich history and specialization in public buildings for government clients and a diverse range of community buildings…
Added 1 month ago
SENIOR TECHNICAL LEAD
Kablamo
Toronto, ON
Full-time
Architect solutions, estimate work, and help write credible proposals in sales engineering.
Added 2 days ago
Senior Project Manager
Colliers Project Leaders
Toronto, ON
Full-time
We deliver capital project solutions that strengthen the built environment, partnering with our clients to bring critical infrastructure and complex building projects to life.
Added 3 days ago
Senior Systems Architect
Euna Solutions
ON · Oakville, Ontario
Full-time
The Platform & Enterprise Technology team at Euna Solutions sets the architectural foundation that every product in the portfolio runs on, and this role owns that foundation. As Senior…
Added 3 days ago
Senior Systems Architect
Euna Solutions
ON · Oakville, Ontario
Full-time
The Platform & Enterprise Technology team at Euna Solutions sets the architectural foundation that every product in the portfolio runs on, and this role owns that foundation. As Senior…
Added 12 days ago
Sr Data & AI Governance Architect (Purview Platform Lead)
CGI
Toronto, ON
Full-time
Experience working within regulated industries, including financial services, healthcare, or public sector organizations
Added 16 days ago
Coordinator, Parks Services
City of Fort Saskatchewan
Fort Saskatchewan, AB
Full-time
Coordinate the implementation of Parks Services plans, projects, programs, and initiatives in alignment with the Public Works Business Plan and the City’s 10-Year Capital Plan.
Added 16 days ago
Solutions Architect – Digital Identity, Telco & Data Platforms
EnStream LP
Toronto, ON
Full-time
Job Title: Solutions Architect – Digital Identity, Telco & Data Platforms
Added 18 days ago
Senior Lead Software Engineer, Payment Systems - Vice President
Citi
Mississauga, ON
Full-time
Citi's Core Payment Systems team is looking for a Senior Lead Software Engineer to architect and drive the modernization of global payment processing platforms that move USD 4 trillion in…
Added 17 days ago
Agentic AI Engineer/Architect - FTA
SIA Innovations INC
Montreal, QC
…and REM, we work alongside Fortune 1000 companies and leading public-sector organisations across Québec, Ontario, the Caribbean, and the United States. We guide these organisations in…
Added 23 days ago
Master Data Management - Manager
Deloitte
Toronto, ON
Full-time
…Asset, Reference - and across regulated industries including Financial Services, Public Sector, Energy, Life Sciences and…
Added 24 days ago
Platform Engineer
BCI
Victoria, BC
Full-time
…Corporation (BCI) is the provider of investment management services for British Columbia’s public sector and one of the largest asset managers in Canada. BCI seeks investment opportunities…
Added 24 days ago
Senior Data & Analytics Engineer (Platform Engineer - 12 month temp)
BCI
Vancouver, BC
Temporary
…Corporation (BCI) is the provider of investment management services for British Columbia’s public sector and one of the largest asset managers in Canada. BCI seeks investment opportunities…
Added 25 days ago
Senior GIS Developer, Federal Sector Services
Esri Canada
Ottawa, ON
Full-time
A Day in the Life of a Senior GIS Developer at Esri Canada:
Added 1 month ago
Senior Software Engineering Specialist
CGI
Toronto, ON
Full-time
…developers, and consultants delivering enterprise technology solutions for some of Canada's leading public and private sector organizations. While you may be assigned to one or more client…
Added 1 month ago
Senior Platform Engineering Specialist
CGI
Toronto, ON
Full-time
…engineers, and consultants delivering enterprise technology solutions for some of Canada's leading public and private sector organizations. While you may be assigned to one or more client…
Added 1 month ago
Senior Data Platform Engineering Specialist
CGI
Toronto, ON
Full-time
…engineers, and consultants delivering enterprise technology solutions for some of Canada's leading public and private sector organizations. While you may be assigned to one or more client…
Added 1 month ago
Senior Full Stack Developer
CGI
Toronto, ON
Full-time
…developers, and consultants delivering modern enterprise technology solutions for leading public and private sector organizations across Canada. You will help clients design, build,…
Added 1 month ago
Senior Architect (Cloud & FinOps Strategy)
CGI
Toronto, ON
Full-time
CGI is seeking an experienced Senior Architect to join our growing Architecture & Solutions consulting practice within the Emerging Technologies team.
Added 1 month ago
Capture Director / Business Development
MDA Space
Ottawa, ON
Full-time
Architect optimal deal structures and Price to Win models across diverse contract types
Added 1 month ago
Capture Director / Business Development
MDA Space
Richmond, BC
Full-time
Architect optimal deal structures and Price to Win models across diverse contract types
Added 1 month ago
Sr. Solutions Architect, Agentic WorkSpaces, Canada
Amazon
Toronto, ON
…WorkSpaces. Federal, provincial, and regulated-industry customers (financial services, healthcare, public sector) require native French-language engagement for procurement, compliance…

Citi

Lead Python AI Principal Engineer (Hands-On), SVP

Mississauga, ON, Canada

Pay: $145,100.00 - $217,700.00
Job type: Full-time
Posting language: English
Posted: Aug 14, 2026

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Original job description

About Citi:

Citi, the leading global bank, has approximately 200 million customer accounts and does business in more than 160 countries and jurisdictions. Citi provides consumers, corporations, governments, and institutions with a broad range of financial products and services, including consumer banking and credit, corporate and investment banking, securities brokerage, transaction services, and wealth management.

As a bank with a brain and a soul, Citi creates economic value that is systemically responsible and in our clients’ best interests. As a financial institution that touches every region of the world and every sector that shapes your daily life, our Operations & Technology teams are charged with a mission that rivals any large tech company. Our technology solutions are the foundations of everything we do from keeping the bank safe, managing global resources, and providing the technical tools our workers need to be successful to designing our digital architecture and ensuring our platforms provide a first-class customer experience. We reimagine client and partner experiences to deliver excellence through secure, reliable, and efficient services.

Our commitment to diversity includes a workforce that represents the clients we serve from all walks of life, backgrounds, and origins. We foster an environment where the best people want to work. We value and demand respect for others, promote individuals based on merit, and ensure opportunities for personal development are widely available to all. Ideal candidates are innovators with well-rounded backgrounds who bring their authentic selves to work and complement our culture of delivering results with pride. If you are a problem solver who seeks passion in your work, come join us. We’ll enable growth and progress together.

The Role:

We are seeking a highly skilled, hands-on Lead Python AI Principal Engineer to join Citi in spearheading the design and development of cutting-edge AI platforms and services. This role requires a highly hands-on Python engineer to drive the creation of enterprise-wide Generative AI platforms that deliver tangible value across all of Citi's lines of business. The ideal candidate will leverage a strong background in high-scale engineering and AI solutions to lead technical teams, define architectural vision, and translate ambiguous business challenges into concrete, scalable implementations. This is a key leadership position focused on building innovative, production-grade AI products that will shape the future of finance.

Responsibilities

Lead the end-to-end development of highly complex AI solutions, infrastructure, and architecture.
Lead and guide a team of engineers and data scientists, reviewing designs and code to uphold the highest levels of engineering standards.
Translate ambiguous product or business problems into clear technical direction, defining success metrics for engineering and data science teams.
Design robust model architectures, retrieval strategies, prompting/orchestration layers, and evaluation frameworks that meet product, reliability, and scalability requirements.
Engage with data-science, technical, and business stakeholders to define and architect solutions for key use-cases across our lines of business.
Actively contribute to software development, both as a hands-on coder and as a reviewer.
Build and maintain core Python-based Generative AI components, including RAG pipelines, model wrappers, orchestration logic, and data loaders using FastAPI, ADK, and internal libraries.
Ensure robust error handling, observability, and test coverage across all codebases.
Manage executive stakeholder relationships in technology, acting as a partner and trusted advisor.
Manage multiple concurrent initiatives and projects of varying sizes and complexity.

Qualifications

7+ years' experience in the software industry, with proven success in a senior position such as Principal Engineer (progressive hands-on experience required)
6+ years' experience in hands-on Python engineering
Experience serving as a people manager as this role may also include management .
Highly experienced in delivering complex technical solutions to production within the Python and AI/ML ecosystem.
Proficiency in programming languages such as Python.
Passion for and proven hands-on experience integrating with AI/ML technologies.
Experience with cloud architectures and public cloud offerings.
A strong and diverse technical background, with the ability to quickly learn new technologies and influence highly skilled engineering teams.
Excellent communication, leadership, and organizational abilities.
Excellent analytical and problem-solving skills with the ability to think strategically.
Experience in the financial industry is a major advantage.

Education

Bachelor's degree/University degree or equivalent experience is required.
Master's degree is preferred.

This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required.

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Job Family Group:

Technology

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Job Family:

Applications Development

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Time Type:

Full time

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Primary Location Full Time Salary Range:

$145,100.00 - $217,700.00

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Most Relevant Skills

Please see the requirements listed above.

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Other Relevant Skills

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

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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.

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This job opening is for an existing job vacancy.

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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.

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More about this job

Responsibilities

Lead the end-to-end development of complex Generative AI solutions and infrastructure while managing a team of engineers and data scientists. Collaborate with business stakeholders to translate ambiguous requirements into scalable, production-grade technical implementations.

Requirements

Requires at least 6 years of software industry experience with a proven track record in senior engineering or architecture roles. Candidates must possess strong proficiency in Python, experience with AI/ML technologies, and at least 3 years of people management experience.

Skills

Generative AI
Python
Software Engineering
Team Leadership
Cloud Architecture
RAG Pipelines
FastAPI
Machine Learning
System Architecture
Data Science
Stakeholder Management
Technical Strategy
Product Development
Scalable Systems
Code Review

Visa sponsorship

Not detected in the job text

Keywords

Generative AI
Python
FastAPI
RAG
Machine Learning
Cloud Architecture
Software Engineering
Leadership
Artificial Intelligence
Data Science
Finance
Scalability
Orchestration
Observability
ADK
Technical Strategy
Product Management
Enterprise Software
System Design
Banking

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