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Senior Python Developer

https://www.citi.com/ Logo

Citi

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Location:
Canada, Mississauga

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Category:
IT - Software Development

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Contract Type:
Employment contract

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Salary:

94300.00 - 141500.00 USD / Year

Job Description:

This role is for a Senior Python Developer on FI Data team. The team is responsible for monetizing data generated by Citi's fixed income business and building tools/services that provide actionable insights with direct impact on revenue. FI data team is growing rapidly and is responsible for delivering state of the art data centric solutions. Initiatives includes deliveries across sales, risk, pricing, quants, algorithmic trading, execution, trade processing, and much more.

Job Responsibility:

  • Design and develop high performance green-field data analytics products for a Tier 1 bank
  • Collaborate with business partners on the trading floor to create technical solutions with a competitive advantage
  • Part of an innovative team pushing boundaries to create cutting edge data visualization solutions
  • Promote and follow engineering best practices
  • Apply an engineering mind-set to development work: understand use-cases in details, develop metrics to build good estimates of volume and compute velocity requirements, understand and discuss openly any implementation limitations or workaround
  • Evaluate and build POCs for new strategic initiatives and work to convert to enterprise solutions
  • Ability to take initiative to research, learn and recommend emerging technologies
  • Provide post release assistance to business, development and support groups
  • Develop application as per best practice and remain compliant with prescribed best practices (TDD, maintain high unit test coverage, CI)

Requirements:

  • 5+ years applicable relevant experience
  • 3+ years experience and understanding of Python 3.6 or above
  • 3+ years experience with python frameworks and libraries, including Pytest, Pandas, Flask, and Kafka
  • Solid understanding of REST API development
  • Demonstrable experience in writing reusable, testable and efficient code with proper error and exception handling
  • Experience with design and implementation of cloud-ready applications and deployment via Kubernetes / Openshift
  • Experience with big data computation platforms (Flink, Spark, Apache Beam) or big data distribution platforms (Hadoop, Druid, Pinot, Trino, Ignite)
  • Hands-on experience in handling various data structures
  • Understanding of threading model of Python, and multi-processor architecture
  • Experience working on a Continuous Integration and Continuous Delivery environment
  • Familiarity with TeamCity, Sonarqube and Jenkins
  • Experience with the SDLC lifecycle and in working within an Agile environment
  • Demonstrable understanding and experience of engineering best practices: design patterns, coding standard, code review, unit testing via Mockito and Junit
  • Understanding of Agile software development methodology and strong experience with standard CI tools (Jenkins, TeamCity, Sonarqube, git)
  • Bachelors degree in Computer Science, or related technical/quantitative discipline or equivalent work experience

Nice to have:

Knowledge of python microservice development using FAST API and streaming technology Faust

Additional Information:

Job Posted:
October 23, 2025

Employment Type:
Fulltime
Work Type:
On-site work
Job Link Share:
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