Software Engineer Intern Jobs in Whitby, ON (NOW HIRING)

Powered by Passion. United by Purpose. Build for Impact.

At Maple Leaf Sports & Entertainment Partnership (MLSE), we exist to deliver the ultimate fan experience by lifting trophies, spirits, and communities - united as one.

We're more than a workplace. We are a team of passionate people, boldly building the future of sport and entertainment, together. We believe in the power of play, the strength of collaboration, and the energy that comes from showing up with purpose.

From the ice to the pitch, the hardwood to the digital arena, we're proud to be the driving force behind the Toronto Maple Leafs (NHL), the Toronto Raptors (NBA), Toronto FC (MLS), Toronto Argonauts (CFL) and development teams with the Toronto Marlies (AHL), Raptors 905 (NBA G League), Toronto FC II (MLS NEXT Pro League) and Raptors Uprising Gaming Club, the Toronto Raptors Esports franchise in the NBA 2K League.

We bring these teams - and world-class entertainment - to life at our iconic venues, including Scotiabank Arena, BMO Field, Coca-Cola Coliseum, Ford Performance Centre, BMO Training Ground, and OVO Athletic Centre. Off the field, we serve up elevated dining at e11even, Real Sports, and our signature club spaces like Hot Stove Club, ScotiaClub, and Platinum Club.

Through MLSE Foundation and MLSE LaunchPad, we use the power of sport to help youth facing barriers reach their full potential. Since 2009, we've invested more than $45 million into Ontario communities -- and we're just getting started.

This is what it means to be One MLSE: a culture where everyone plays a role, everyone belongs, and everyone contributes to something bigger than themselves.

So, if you're ready to play with purpose, grow with passion, and win as one, we'd love to have you on our team.

** We know that great candidates come from a variety of backgrounds and experiences. Even if you do not meet every qualification listed, we encourage you to apply. Your unique perspective, transferable skills, and lived experience may be exactly what we're looking for. **

Job Description

We are seeking a motivated Software Engineer Intern who is eager to gain hands-on experience building modern web applications. The ideal candidate is passionate about software development, enjoys learning new technologies, and is excited to contribute to both front-end and back-end development while working alongside experienced engineers. This internship provides an opportunity to develop practical skills in full stack development and AI-assisted software engineering practices.

MLSE's Internship term dates are from September 8, 2026 - December 18, 2026

• Assist in the development, testing, and maintenance of web applications across front-end and back-end systems.
• Build and enhance user interfaces using React, TypeScript, HTML, and CSS under the guidance of senior engineers.
• Support the development and integration of RESTful APIs and backend services using Node.js or similar technologies.
• Write clean, maintainable, and well-documented code following established coding standards and best practices.
• Participate in debugging, troubleshooting, and resolving software issues.
• Contribute to application testing, including unit testing and quality assurance activities.
• Use AI-assisted development tools (e.g., GitHub Copilot, Claude Code, Replit AI) to accelerate learning, coding, and problem-solving.
• Collaborate with product managers, designers, and engineering team members to deliver product features.
• Participate in code reviews, team meetings, and knowledge-sharing sessions.
• Learn and apply software development methodologies, tools, and engineering best practices.

• Currently pursuing a Bachelor's or Master's degree in Computer Science, Software Engineering, Computer Engineering, or a related field.
• Basic experience with software development through coursework, personal projects, hackathons, internships, or open-source contributions.
• Familiarity with:
  • Front-end: React, JavaScript/TypeScript, HTML5, CSS3
  • Back-end: Node.js, Express, or similar backend frameworks
• Understanding of basic web development concepts, including APIs and client-server architecture.
• Familiarity with Git and version control workflows.
• Basic knowledge of databases such as PostgreSQL, MySQL, MongoDB, or similar technologies.
• Strong problem-solving skills and willingness to learn.
• Effective communication and collaboration skills.
• Interest in AI-assisted software development tools and modern engineering practices.

• Experience building personal, academic, or hackathon projects using React and Node.js.
• Exposure to cloud platforms such as AWS, Azure, or GCP.
• Familiarity with Docker or containerization concepts.
• Experience with testing frameworks such as Jest, Playwright, or Cypress.
• Exposure to AI applications, LLM APIs, or machine learning projects.
• Contributions to open-source projects, coding competitions, or technical communities.

Job Posting Compensation Range/Rate:

$38,760