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Senior Python Developer

Citi

Mississauga

On-site

CAD 131,000 - 198,000

Full time

5 days ago
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Job summary

A major financial services company in Mississauga is seeking an experienced Python Developer to join their Data Engineering & Analytics team. You will design and maintain robust data pipelines, APIs, and workflows, while collaborating with business teams to deliver insightful solutions. Ideal candidates have extensive experience in Python, data handling, and experience in the financial sector is a plus.

Qualifications

  • 5+ years of proven experience in Python development, focusing on data handling.
  • Extensive experience building RESTful APIs and microservices.
  • Strong SQL skills for querying and manipulating relational databases.

Responsibilities

  • Design and maintain scalable data pipelines using Python, SQL, PySpark.
  • Perform efficient ETL for large volumes of data, ensuring quality.
  • Collaborate with stakeholders to translate data requirements into solutions.

Skills

Python development
Data handling and processing
RESTful APIs
SQL
Statistical analysis techniques
PySpark
Data cleaning and validation
Machine learning concepts
Problem-solving

Education

Bachelor's or Master's degree in Computer Science

Tools

CI/CD tools
Git-based version control
Kafka
Job description
Overview

We are seeking a highly skilled and experienced Python Developer to join our Data Engineering & Analytics team. You will play a key role in designing, developing, and maintaining robust data pipelines, APIs, and data processing workflows. You will work closely with data analysts and business teams to understand data requirements and deliver insightful data-driven solutions. The ideal candidate is passionate about data, enjoys problem-solving, and thrives in a collaborative environment. Experience in the financial or banking domain is a plus.

Responsibilities
  • Design, develop, and maintain robust and scalable data pipelines using Python, SQL, PySpark, and streaming technologies like Kafka.
  • Perform efficient data extraction, transformation, and loading (ETL) for large volumes of data from diverse data providers, ensuring data quality and integrity.
  • Build and maintain RESTful APIs and microservices to support seamless data access and transformation workflows.
  • Develop reusable components, libraries, and frameworks to automate data processing workflows, optimizing for performance and efficiency.
  • Apply statistical analysis techniques to uncover trends, patterns, and actionable business insights from data.
  • Implement comprehensive data quality checks and perform root cause analysis on data anomalies, ensuring data accuracy and reliability.
  • Collaborate effectively with data analysts, business stakeholders, and other engineering teams to understand data requirements and translate them into technical solutions.
Qualifications
  • Bachelor's or Master's degree in Computer Science, Data Science, Information Systems, or a related field.
  • 5+ years of proven experience in Python development, with a strong focus on data handling, processing, and analysis.
  • Extensive experience building and maintaining RESTful APIs and working with microservices architectures.
  • Proficiency in building and managing data pipelines using APIs, ETL tools, and Kafka.
  • Solid understanding and practical application of statistical analysis methods for business decision-making.
  • Hands-on experience with PySpark for large-scale distributed data processing.
  • Strong SQL skills for querying, manipulating, and optimizing relational database operations.
  • Deep understanding of data cleaning, preprocessing, and validation techniques.
  • Knowledge of data governance, security, and compliance standards is highly desirable. Experience in the financial services industry is a plus.
  • Familiarity with basic machine learning (ML) concepts and experience preparing data for ML models is a plus.
  • Strong analytical, debugging, problem-solving, and communication skills.
  • Ability to work both independently and collaboratively within a team environment.
Education

Bachelor's or Master's degree in Computer Science, Data Science, Information Systems, or a related field.

Preferred Skills

Experience with CI/CD tools and Git-based version control.

Experience in the financial or banking domain.

Job Details

Job Family Group: Technology

Job Family: Applications Development

Time Type: Full time

Primary Location Full Time Salary Range: $94,300.00 - $141,500.00

Other Information

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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