Principal Software Engineer (Full-Stack JavaScript)

Morningstar

📍 Toronto, Ontario, Canada

Full-time Computer Occupations Posted February 20, 2026

Job Description

The Role

We are seeking a Principal Software Engineer (Full-Stack JavaScript) to lead technical direction and delivery within Morningstar’s Central Technology Web Development team, supporting the evolution of our Corporate Marketing digital ecosystem. In this role, you will serve as the senior technical authority for the Toronto engineering team — owning core architectural decisions, mentoring engineers, and ensuring the quality and reliability of all technical output.

Position Location: This is a hybrid position (4 days in-office) based in Toronto.

Job Responsibilities

  • Serve as the senior technical lead for the Toronto marketing engineering team, setting the technical direction, raising the engineering bar, and ensuring high-quality output across the group.

  • Mentor, coach, and develop engineers at multiple levels, guiding architectural thinking, code quality, and professional growth while being accountable for the team’...