**Job Description**MLSE Sport Performance Lab is seeking a **Full Stack Developer** to join our team. This individual will play a key role in developing and maintaining team coaching applications across multiple projects. They will focus on frontend development (React), backend/API development (Python/AWS), and provide development support for mobile applications using React Native. This role reports to the Director, Software Engineering.Sport Performance Lab is a research & development team focused on delivering wins for our professional teams. We are looking for individuals who are eager to learn and able to collaborative within a diverse team.Position Type: 12-month independent contract**Responsibilities:*** Develop and maintain web application features using React, adhering to modern DevOps practices and security standards.* Design, implement, and support APIs to integrate frontend and backend systems, leveraging Python and AWS services.* Provide development support for iOS apps using React Native.* Use AI-assisted development tools to accelerate delivery while maintaining code quality, security, and correctness standards.* Assist with backend development tasks using Python, ensuring stability and performance.* Collaborate with other teams, such as infrastructure and application engineering, to define metadata layers, technical strategies, and efficient integration across the existing landscape.* Develop and implement testing solutions, including automation, to ensure application quality and reliability.* Provide high-level sizing estimates and contribute to planning and scoping discussions to ensure alignment on technical solutions, project goals,



and prioritization.* Contribute to and maintain documentation of engineering best practices, tools, and frameworks.**Qualifications:*** Minimum 1-2 years of experience in full stack development.* Hands-on experience with React for frontend development.* Proficiency in Python for backend and API development.* Familiarity with AWS services and their integration into backend systems.* Familiarity with AI-assisted development tooling (e.g., Claude Code, GitHub Copilot, Cursor) and sound judgment about when to use it, including review of AI-generated code.* Knowledge of React Native or a robust interest in learning mobile development is a plus.* Advocate of security best practices and micro-service architecture.* Proven ability to take a project from scoping requirements through to product launch.* Strong understanding of software development lifecycle (SDLC) practices, including version control, code reviews, testing, and operations.* Experience collaborating with backend developers to design and integrate APIs and web services into applications.* Excellent problem-solving and analytical skills.* Ability to work collaboratively in a team and effectively manage multiple priorities.**Nice-to-haves:*** Experience building Swift apps.* Familiarity with tools like **Figma**, **Invision**, or **Adobe XD** for design handoffs.* Experience with **sports data** or knowledge of the sports industry.* Interest in or experience with **data visualization techniques** or libraries for presenting complex statistics.* Basic understanding of **DevOps practices** and CI/CD pipelines.* Previous experience working with confidential data or information.**Job Posting Compensation Range/Rate:**Freelance Rate
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📌 [C] Full Stack Developer (Toronto)
🏢 Maple Leaf Sports & Entertainment
📍 Toronto