Senior Python Engineer – Fixed Income AVP; Hybrid

Senior Software Engineer (Python) – Fixed Income Assistant Vice President

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Job Req :

Location(s):

Mississauga, Ontario, Canada

Job Type:

Hybrid

Posted:

Apr. 29, 2026

Discover your future at Citi

Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 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.

Overview of the Role

Citi, a leading global bank, is seeking a talented and passionate Python Developer to join our growing Fixed Income Technology (FIT) team. FIT is responsible for building and delivering technology used across the Fixed Income businesses, which include rates, corporate credit, and securitized markets. Our technology solutions are critical for pricing, hedging, managing trades, market-making, financing, and securitizing products in an increasingly electronic environment.

As a key member of our team, you will contribute to the design, development, and maintenance of high-performance Python applications. You will work closely with other developers and stakeholders to deliver innovative solutions that drive data-driven decision-making within the organization. This role emphasizes the development of robust, scalable, and high-performance Python-based applications.

Responsibilities:

• Design and Development:

  • Design, develop, and maintain robust and scalable applications primarily using Python.

  • Implement efficient and optimized code for various business needs.

  • Integrate Python applications with various data sources, APIs, and other systems.

  • Contribute to the design and development of application architectures.

  • Write clean, well-documented, and testable code.

• Technical Collaboration & Practices:

  • Collaborate effectively with other engineers, product managers, and stakeholders throughout the software development lifecycle (SDLC), adhering to Agile methodologies.

  • Stay up-to-date with the latest trends and technologies in Python development.

  • Solid understanding of Object-Oriented Programming (OOP) concepts, multithreading, and thread pools.

  • Familiarity with containerization technologies like Docker and deployment platforms like Kubernetes, Open Shift, or ECS.

• Experience:

  • Minimum 3-5 years of experience developing and deploying production-ready Python applications.

  • Strong experience with core Python, SQL, and database APIs.

  • Experience with Python frameworks (e.g., Django or Flask) is a plus.

  • Familiarity with data processing concepts and related technologies (e.g., Kafka, Apache Spark) is beneficial.

  • Experience using Java is preferred

• Skills:

  • Excellent communication and collaboration skills.

  • Strong problem-solving and analytical skills.

Nice to Have:

• Contributions to open-source projects.

• Experience working in a cloud environment (AWS, GCP).

• Familiarity with financial industry concepts.

Education:

• Bachelor’s degree/University degree or equivalent experience

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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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…