Principal Software Engineer

Community Trust Company; Canada; On-site; CAD 135,000 - 165,000; Full time

Benefits offered by this job

Health & wellbeing resources

Paid vacation and sick days

Hybrid work environment with 3 days in

Career growth opportunities

Diverse and inclusive team

Job summary

Questrade Financial Group in North York is seeking a Principal Software Engineer to own end-to-end architecture, define how systems are built, and lead hands-on development with TypeScript, React, and React Native. Three days per week are spent on-site with engineers and product leads to translate requirements into solid technical strategies.

You will drive architecture decisions, collaborate across teams, utilize AI tools like Cursor or Claude daily, and ship production-grade solutions in a

Qualifications

• 10+ years of professional software engineering experience, with a track record of leading technical initiatives.
• Ability to translate business problems into architecture and drive end-to-end implementation.
• Strong hands-on experience with TypeScript, React and React Native.

Responsibilities

• Lead end-to-end solution design for complex initiatives; facilitate architecture discussions.
• Own architectural decisions and produce design artifacts used by the team.
• Collaborate with engineers and product leads to deliver production-ready systems.

Skills

TypeScript

React

React Native

DDD

EDA

GCP

BigQuery

Bigtable

AI tools

Communication

Tools

Cursor

Claude

Google Cloud Platform

Job description

North American Centre, 5700 Yonge St #210B, North York, ON M2M 4G3, Canada

Job Description

Posted Wednesday, July 29, 2026 at 4:00 AM

Questrade Financial Group (QFG), through its companies - Questrade, Questbank, Questrade Wealth Management, Community Trust Company, Zolo, and Flexiti, provides securities and foreign currency investment, professionally managed investment portfolios, mortgages, real estate services, financial services and more. We use cutting-edge technology to help Canadians become much more financially successful and secure.

At QFG, we combine 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.

Join our diverse, inclusive, and hybrid workplace to unleash your creativity and nurture your curiosity without limits. If you share this sense of infinite possibility, come shape your future at QFG.

What’s in it for you as an employee of QFG?

Health & wellbeing resources and programs

Paid vacation, personal, and sick days for work-life balance

Competitive compensation and benefits packages

Work-life balance in a hybrid environment with at least 3 days in office

Career growth and development opportunities

Opportunities to contribute to community causes

Work with diverse team members in an inclusive and collaborative environment

We’re looking for our next Principal Software Engineer. Could It Be You?

We’re hiring a Principal Software Engineer who can do more than own the full stack. You’ll define how it’s built, and then build it yourself. You’ll lead solution design, drive architectural decisions, and write the code that ships. This is a hands-on role: you’ll work alongside other senior and principal engineers as peers, everyone pulling their own weight and expecting the same from others. You design it, you code it, you own it in production.

Three days a week you’ll be on-site at our North York office, working directly with engineers and product leads across teams. Our team uses AI tools like Cursor or Claude as a core part of how we work, not as optional extras. You’re expected to use them daily to move fast, stay sharp, and deliver at a high standard.

This role is for engineers who don’t wait to be handed a technical strategy. They write it. If you can translate a business problem into an architecture, own the solution end-to-end, and work closely with engineers and product leads to get it built right, we want to talk.

Use Cursor or Claude as part of your daily workflow to accelerate coding, design thinking, reviews, and documentation. Always looking for ways to go faster without cutting corners.

Lead end-to-end solution design for complex initiatives: facilitate technical discovery, define system boundaries, and produce architecture artifacts that the team can build confidently against.

Make the hard technical calls across back-end, web, and mobile, then implement them yourself in TypeScript — React on the web, React Native on mobile. Architecture is not a document you hand off; it’s code you ship.

Work in-person with engineers and product leads to translate requirements into technical strategies, surface trade-offs early, and keep solutions aligned with product direction.

Collaborate with other senior and principal engineers to align on architecture, share ownership of hard problems, and hold each other to a high bar.

Lead design and architectural reviews, produce technical documentation, and hold yourself to a high bar from first design to production.

So are YOU our next Principal Software Engineer ? You are if you…

Active daily use of AI development tools like Cursor or Claude. This is a hard requirement. If you’re not already using AI to code, review, and design faster, this role is not the right fit.

10+ years of professional software engineering experience with a track record of leading technical initiatives, not just contributing to them.

Demonstrated experience leading solution design for complex systems: facilitating architecture sessions, producing design documentation, and driving teams from ambiguity to executable plans.

Strong hands-on command of TypeScript, with React and React Native (or a documented history of picking up frameworks fast).

Deep practical knowledge of Domain-Driven Design (DDD) and Event-Driven Architecture (EDA) in production, backed by strong object-oriented (OOP) fundamentals.

Ability to communicate technical decisions clearly to both engineers and product leads. You can go deep on implementation details with a developer and talk trade-offs with a PM without losing either audience.

Comfortable with in-person collaboration in North York three days per week. This role requires presence, not just availability.

Experience with Angular or C# / .NET Core.

Experience with real-time technologies like WebSockets, gRPC, or Firebase.

Hands-on with Google Cloud Platform (GCP), our cloud environment.

Complex query experience in analytical databases like BigQuery or Bigtable.

Contributions to open-source or a portfolio that demonstrates architectural thinking, not just shipping velocity.

Compensation Information:

Base salary range: $135,00 - $165,000.

The final compensation package will be commensurate with the successful candidate's experience, skills, and geographic location (Canada). It includes a comprehensive benefits plan and a competitive incentive (bonus) program for Full-Time Permanent roles.

Sounds like you? Click below to apply!

# LI-CE1 #LI-Hybrid

At Questrade Financial Group of Companies, with multiple office locations around the world, we are committed to fostering a diverse, inclusive and accessible work environment. This is an environment where individuals are treated with dignity and respect. Here, the unique skills and experience you bring will be valued. You will be supported and motivated, so that you can harness your unlimited potential. Our team reflects the diversity of the communities we serve and operate in. Having a collaborative and diverse team helps us push boundaries to bring the future of fintech into existence—not only for the benefit of our customers, but for those who build their career with us.

Questrade Financial Group of companies Applicant Tracking System utilizes artificial intelligence (AI) for application screening. The AI system operates on predetermined criteria, with final decisions subject to human review.

Candidates selected for an interview will be contacted directly. If you require accommodation during the recruitment/selection process, please let us know and we will work with you to meet your needs.

North American Centre, 5700 Yonge St #210B, North York, ON M2M 4G3, Canada