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Senior Python Engineer

Citigroup

On-site
Mississauga, ON
Full-time
Senior
Manager
$94k–$142kPosted 3mo ago

Real job — pulled straight from Citigroup’s careers page · Verified July 14, 2026 · No reposts.

Job description

Citigroup is hiring a Senior Python Engineer — a full-time, based in Mississauga, ON role ($94k–$142k). Apply directly on Citigroup's careers page below.

Senior Python Engineer-Assistant Vice President

Location: Mississauga, Ontario, Canada

Employment Type: Regular

Markets Technology group is redefining how financial risk is managed, and we're looking for a skilled Python Engineer to be a key part of this transformation. This is a unique opportunity for a Python Engineer passionate about building enterprise-ready applications at the intersection of large-scale systems and cutting-edge AI. Your mission will be to drive innovation across three core domains: architecting and developing strategic backend platforms, creating sophisticated risk algorithms in Python, and pioneering the use of Generative AI to unlock intelligence from vast, unstructured financial data. This role places you at the center of Citi's technological evolution, offering a chance to apply your deep engineering skills to solve complex challenges. While not required, experience in the financial industry is a significant plus.

Responsibilities:

  • Develop and implement sophisticated risk algorithms on Citi's strategic platforms by applying and integrating GenAI foundational models.
  • Utilize advanced prompt engineering, token usage optimization, and patterns like Retrieval-Augmented Generation (RAG) to build efficient and effective solutions using Citi's proprietary data.
  • Perform hands-on coding, system analysis, architectural design, and end-to-end delivery of assigned projects.
  • Collaborate closely with cross-functional teams to define, design, and ship new platform features.
  • Continuously discover, evaluate, and implement new GenAI techniques and technologies to maximize development efficiency.
  • Provide technical leadership by driving and performing best-in-class engineering practices.
  • Produce high-quality, production-ready software that is unit-tested, code-reviewed, and checked in regularly for continuous integration.
  • Develop and maintain clear and comprehensive documentation for the systems and processes you create.
  • Appropriately assess risk when business decisions are made, demonstrating particular consideration for the firm’s reputation and safeguarding Citigroup, its clients and assets, by driving compliance with applicable laws, rules and regulations, adhering to Policy, applying sound ethical judgment regarding personal behavior, conduct and business practices, and escalating, managing and reporting control issues with transparency.

Qualifications:

  • Proven hands-on experience applying GenAI foundational models, with strong expertise in prompt engineering, token optimization, and related concepts.
  • Strong technical expertise and professional experience in Python for backend development.
  • Deep, practical knowledge of Kubernetes for developing and deploying scalable backend platforms and engineering high-performance APIs.
  • A strong understanding of software engineering best practices, including system design, data structures, and algorithms.
  • Excellent problem-solving skills and a meticulous attention to detail.
  • The ability to work independently, manage priorities, and handle multiple task assignments effectively.

Education:

  • Bachelor’s degree/University degree or equivalent experience

Additional Skills:

  • Possess strong communication and diplomacy skills to effectively guide, influence, and convince others.
  • Cultivate a high degree of trust and open communication among all project stakeholders.
  • Inspire a sense of shared purpose within project teams to drive business results through effective leadership.

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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:

$94,300.00 - $141,500.00

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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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Frequently asked questions

What is the salary for Senior Python Engineer at Citigroup?

The estimated salary range for Senior Python Engineer at Citigroup is $94,000 - $142,000 USD per year.

What skills are required for Senior Python Engineer at Citigroup?

The required skills for Senior Python Engineer at Citigroup include: Python, Generative AI, Kubernetes, API.

What is the seniority level for Senior Python Engineer at Citigroup?

Senior Python Engineer at Citigroup is a Senior / Manager level position.

How do I apply for Senior Python Engineer at Citigroup?

You can view the full description and apply for Senior Python Engineer at Citigroup on EchoJobs: https://echojobs.io/job/citigroup-senior-python-engineer-assistant-vice-president-6rf4p.