Principal Software Engineer (Questbank)

Questrade Financial Group•Toronto, ON

23d•CA$135,000 - CA$165,000•Hybrid

About The Position

Questrade Financial Group (QFG) is a diverse, inclusive, and hybrid workplace that combines human-centric collaboration with AI-driven innovation to redefine financial services. The ideal candidate will be a catalyst for change, using AI to transform and deliver unparalleled customer experiences and shaping a future where AI empowers our teams to do their best work. This role is for a Principal Software Engineer who is a strategic technical leader and an "out-of-the-box" thinker. In this role, you aren't just completing tickets — you are a force multiplier who levels up the engineering team by sharing knowledge and enabling others to do their best work within the squad's domain. You will lead the research and architecture for complex systems, ensuring our technical direction aligns with business needs while establishing the standards and best practices that our teams live by. You are proactive, identifying friction in our processes — like improving local testing or observability — and building solutions that benefit everyone.

Requirements

8+ years of software development experience with a track record of leading highly complex technical initiatives.
Bachelor's or Master's degree in Computer Science, Systems Engineering, or equivalent hands-on experience.
Deep, production-grade experience in C#, Minimal APIs, and Angular, with a strong grasp of Service Oriented Architecture (SOA).
Solid command of SOLID principles, integration design patterns, and REST-ful/SOAP-based services.
Comfortable using or eager to adopt AI coding tools like Claude AI and Cursor as part of your daily workflow.
Belief in "leadership by influence" and passion for helping engineers grow their technical skills.
Track record of identifying bottlenecks within a system or sub-system and taking the initiative to fix them.
Ability to explain complex architectural concepts to both technical and non-technical stakeholders with clarity and ease.

Nice To Haves

Experience with API Management and Middleware systems.
Familiarity with driving technical decisions within a squad or across closely related teams.
A habit of staying current on industry trends and proactively sharing that knowledge with your peers.

Responsibilities

Collaborate with architects and leads to design the approach for software solutions within your domain, including technology direction and architectural decisions scoped to your systems.
Focus on "leveling up" other engineers through influence rather than direct reporting, helping them solve complex problems independently.
Ensure consistency of design across services and modules, making sure individual components work together as a cohesive system.
Champion the adoption of AI-powered tools like Claude AI and Cursor to remove development friction and improve the team's day-to-day engineering experience.
Define and implement standards for Scalability, Security, Logging, and Performance Monitoring to ensure our systems are production-ready.
Troubleshoot and optimize highly complex issues within the domain, serving as the team's go-to reference on the toughest technical challenges.
Author clear design proposals and technical strategies that translate business requirements into specific architectural solutions within your area of ownership.
Foster a culture of excellence through technical guidance, complex code reviews, and support on high-complexity test plans.