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Citi Logo Citi · IT - Software Development

Senior Software Engineer (Python) – Fixed Income

Canada, Mississauga, Ontario 94300.00 - 141500.00 USD / Year · Job Posted April 19, 2026
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Job Description

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.

Job Responsibility

  • 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
  • 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

Requirements

  • Minimum 3-5 years of experience developing and deploying production-ready Python applications
  • Strong experience with core Python, SQL, and database APIs
  • Excellent communication and collaboration skills
  • Strong problem-solving and analytical skills
  • Bachelor's degree in computer science, Engineering, or a related field

Nice to have

  • Experience with Python frameworks (e.g., Django or Flask)
  • Familiarity with data processing concepts and related technologies (e.g., Kafka, Apache Spark)
  • Experience using Java
  • Master's degree in a relevant field
  • Contributions to open-source projects
  • Experience working in a cloud environment (AWS, GCP)
  • Familiarity with financial industry concepts
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