Principal Full Stack Engineer (AI-Native) Canada | Founding Engineering Team We’re partnering with a publicly listed global technology company operating at a massive international scale across digital commerce. Despite its size, the organization runs with a startup execution model
- lean teams, strong ownership, and engineering-led decision making. The company is now establishing a new Toronto engineering hub, starting with a small group of highly senior engineers tasked with designing and operating modern, AI-native systems that directly power a global customer platform used across 50+ countries. At the Principal level, this role will help define system architecture, technical standards, and engineering practices that shape the long-term foundation of the Toronto development center. This team is intentionally structured around AI-augmented software development. AI tooling is not experimental or optional
- it is embedded into daily workflows to dramatically increase engineering velocity, ownership, and output quality. Lead technical direction through hands-on contribution Use AI as a true productivity multiplier What You’ll Be Building: Modern frontend applications and platform experiences Performance, reliability, and observability platforms AI-enabled engineering workflows and development standards Principal Engineers are expected to drive initiatives from architecture → execution → long-term operational ownership while enabling team-wide engineering effectiveness. Architect and evolve scalable full-stack systems across frontend, backend,



and cloud layers Lead high-impact technical initiatives from concept through production deployment Define and promote AI-assisted development standards and workflows Mentor engineers on system design, scalability, and architectural decision making Guide technical direction across services, applications, and platform components Improve system reliability, performance, and security at scale Continuously improve engineering productivity within a small, senior team Ideal Background: We’re looking for senior technical leaders who combine deep hands-on engineering expertise with strong architectural ownership. 10+ years building production software systems ~ Proven experience designing and delivering large-scale web platforms ~ Expert JavaScript / TypeScript proficiency ~ Deep understanding of APIs, distributed systems, and frontend architecture ~ Extensive cloud-native development experience (AWS preferred) ~ Experience working with data storage, caching, and messaging systems ~ Track record of leading technical direction through hands-on execution ~ Comfort operating in small, high-ownership engineering teams Demonstrated ability to leverage AI tooling effectively to accelerate engineering velocity and improve system quality. Founding technical leader within a new Toronto engineering center High autonomy and meaningful architectural ownership Small, senior-only team environment Opportunity to shape AI-native engineering culture from day one Global scale technical challenges without large-company bureaucracy Competitive compensation and long-term growth chance #

📌 Principal SW Engineer (Toronto)
🏢 HRB
📍 Toronto