Python Backend & System Design

Job Title: Python Backend & System DesignLocation: Toronto, CanadaJob Type: ContractJob OverviewWe are seeking a Senior Platform Engineer with 4–6 years of experience in Python backend development, API design, and system architecture. The ideal candidate will have a strong foundation in software engineering principles and hands-on experience building scalable, secure, and high-performance backend systems in a microservices-based environment.Reports To: Software Engineering Manager / Director of Software EngineeringResponsibilities And DutiesDesign, develop, and deliver high-quality features and APIs for our core banking platform.Own the end-to-end delivery of complex features within an agile development team.Collaborate with architects and team members to create scalable technical designs and documentation.Ensure performance optimization and reliability across distributed systems.Write clean, maintainable, and testable code following best practices.Participate in code reviews and provide constructive feedback.Collaborate cross-functionally with product and DevOps teams to ensure seamless delivery.Mentor junior developers and share technical knowledge within the team.Qualifications And Skills4–6 years of hands-on experience in Python backend development.Strong expertise in RESTful API design, development, and integration.Experience with cloud computing platforms (preferably AWS or Azure) and containerized environments using Docker.Proficiency in SQL and relational databases (preferably MySQL); solid grasp of RDBMS concepts (transactions, locking, isolation levels).Good understanding of microservices architecture and distributed system design.Familiarity with message brokers such as RabbitMQ or Kafka.Experience with version control systems (GitHub, GitLab) and agile delivery processes.Strong problem-solving, analytical, and debugging skills.Excellent communication and collaboration skills.Bachelor’s degree in Computer Science, Software Engineering, or equivalent.Preference for candidates from top Canadian universities such as University of Waterloo, University of Toronto, or McGill University.Nice To HaveExposure to Payroll Providers or Time & Attendance systems.Familiarity with *nix environments.Experience with CI/CD pipelines and DevOps practices.