Software Engineer

Role: Software Engineer

Duration: 6 Months Contract

Location: Toronto, ON, Canada Only Local Candidates

Zip Code: M5H 2N2

Technology Front-End: Angular, TypeScript, Bootstrap, HTML5, SCSS

Back-End: Python, FastAPI, SQLAlchemy, Pydantic

Databases: SQL Server, MySQL

Job Overview

We are seeking a Software Engineer contractor to support the Business Systems team for a 6-month engagement.

This role will focus on designing, developing, and evolving scalable production-grade applications for the Transactional Billing Automation platform.

Responsibilities

• Design, develop, and maintain the Transactional Billing Automation platform, including tracking contract information, prepaid usage blocks, rollovers, and calculating projected usage and balances.
• Build and support responsive web applications and RESTful APIs to automate transactional billing operations and reduce manual processing.
• Develop dynamic UI components for managing customer contracts, multi-product selections, invoice details, and billing summaries.
• Implement business logic for prepaid balances, rollover amounts, block total calculations, invoice validations, and contract lifecycle management.
• Collaborate with product owners, software engineers, and QA engineers to gather billing requirements and deliver scalable automation solutions.
• Create reusable components, clean architecture patterns, and well-documented APIs to improve maintainability and long-term scalability.
• Develop unit tests, integration tests, and automated validation processes to ensure billing accuracy and support safe application enhancements.
• Participate in code reviews and enforce coding standards, security best practices, and performance optimization techniques.
• Develop operational dashboards and billing reports to provide visibility into contracts, prepaid usage, rollover balances, projected customer usage, and actual consumption trends.
• Follow development standards, branching strategies, and pull request workflows to deliver clean, secure, and maintainable code through reviews and testing.
• Support Agile development processes, including sprint planning, backlog refinement, stand-ups, demos, and retrospectives.

Experience

• Bachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience.
• 5+ years of experience as a Full-Stack Developer with demonstrated contributions to production applications.
• 5+ years of experience with front-end frameworks such as Angular and TypeScript.
• 5+ years of experience with Python, FastAPI, SQLAlchemy 2.x, JWT authentication, Redis caching, and asynchronous programming.
• Strong understanding of RESTful APIs, data flow, and integration patterns.
• Experience with HTML5, CSS3, and responsive design principles.
• Solid understanding of Object-Oriented Programming (OOP), component-based architecture (Angular), and service-oriented design patterns.
• Experience working with relational databases such as SQL Server and MySQL, including writing optimized SQL queries.
• Familiarity with version control systems such as Git.
• Working knowledge of Agile methodologies and tools such as Jira.

Nice to Have

• Familiarity with tools and libraries such as Jinja2, Pytest, MyPy, and OpenTelemetry.
• Experience with Apache Superset for building interactive dashboards and data visualization.
• Contributions to open-source projects.