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Added 5 mins ago
P&
Ingenieur(e) de projets / Project Engineer
Pratt & Whitney
Longueuil, QC
- Full-time
…les informations techniques sur le moteur pour permettre l’intégration/installation du moteur dans l’aéronef dans un contexte de réglementation (FAR 27/29) régissant les hélicoptères. Le/la…
Added 5 mins ago
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Senior Programme Manager- Electrification
Accenture Construct
Toronto, ON
- Full-time
…railway electrification programmes, including Overhead Contact Systems (OCS/OLE), traction power, substations, distribution systems, interfaces and associated civil and railway…
Added 6 mins ago
PF
Full Stack Engineer
PEOPLE FORCE CONSULTING INC
Quebec, QC
- Contract
Experience with enterprise application architecture and systems integration.
Added 6 mins ago
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Controls Engineer - 14403
MEDA Engineering & Technical Services
Windsor, ON
- Contract
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Added 20 mins ago
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Mechanical Engineer
LabsCubed Inc
Kitchener, ON
- Full-time
The Role: As a Intermediate Mechanical Engineer, you'll play a key role in designing and optimizing advanced mechanical components and systems for our state-of-the-art testing equipment.…
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Electrical Engineer
AML Oceanographic Ltd.
Saanichton, BC
- $87,500 to $104,000 CAD / year
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Electrical Engineer
AML Oceanographic Ltd.
Dartmouth, NS
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- Full-time
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Added 23 mins ago
Senior Power Plant Engineer
WestJet Group
Calgary, AB
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Junior Human Factors Engineer
AtkinsRéalis
Mississauga, ON
- Full-time
…technology to transform the world's infrastructure and energy systems. Together, with our industry partners and clients, and our global team of consultants, designers, engineers and project…
Added 51 mins ago
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Automation Engineer
Zurich Canada
Toronto, ON
- Full-time
Zurich Canada is currently looking for an Entry-Level Automation Engineer to join our technology team. This is an exciting opportunity for an early-career technology professional who is…
Added 51 mins ago
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Hardware Design Engineer - Agricultural Robots
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Kitchener, ON
- Full-time
…and design process for our robotic platform. You will work on systems ranging from lab tests to field-ready machines. Specifically, you will work on power distribution, power conversion,…
Added 51 mins ago
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Software Engineer - Platform Services
Nokia
Ottawa, ON · Kanata, ON
- Full-time
Experience with version control systems and continuous integration/continuous deployment (CI/CD) practices.
Added 53 mins ago
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Markham, ON · Oshawa, ON
- Full-time
This role is for a hands-on senior engineer who can design, implement, test, deploy, and operate reliable backend systems at production scale. The developer will contribute across REST…
Added 1 hour ago
M
Senior Software Engineer, Web & SDK
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Remote, Canada
- $160,000 to $200,000 CAD / year
- Full-time
- Remote
We design and operate global systems for data capture, data labeling, and hardware-enabled workflows used by leading AI labs and robotics companies to train and validate humanoid and…
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Amazon
Varennes, QC
Act as resident engineer during new construction projects. Support construction, commissioning, and turnover.
Added 1 hour ago
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AI Engineer | Full time | AI Innovations
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ON · ON, Canada
- Full-time
Reporting to the Director, AI & Digital Planning, the AI Engineer will be responsible for using the latest AI tools to design, prototype, build, evaluate, and scale AI solutions including…
Added 1 hour ago
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Data Architect
Rodan Energy Solutions Inc.
Mississauga, ON
- Full-time
Plan how platform data and dashboards can be integrated with other systems and securely shared with customers
Added 1 hour ago
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Embedded Software Engineer
Actalent
Mississauga, ON
- $70,000 to $85,000 CAD / year
- Full-time
The Embedded Software Engineer designs, develops, and maintains embedded computer system software for advanced military and naval applications, including control software for helicopter…
Added 1 hour ago
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Senior Power Plant Engineer
WestJet
Calgary, AB
- Full-time
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Added 1 hour ago
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Senior Electrical Designer
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Montreal, QC
- Full-time
As Senior Electrical Designer, you will work with the Lead Electrical Engineer to design, develop, review, and support electrical and automation systems used in rolling stock applications.
Added 1 hour ago
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SDET (Intermediate)
Actalent
Waterloo, ON
- $40 to $50 CAD / hour
- Contract
Experience with CI/CD (continuous integration and continuous deployment) systems, such as Jenkins.
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Martech/ Growth Engineer
Credit Genie
Toronto, ON
- $180,000 to $230,000 USD / year
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You’re comfortable across the stack. You don’t need to be the world's best mobile, backend, data, and web engineer simultaneously, but you can navigate unfamiliar systems and figure out how…
Added 1 hour ago
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Software Engineer I - Front End
TD
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- Full-time
Document and verify system components, applications, system infrastructure, security, integration, operability and engineering related architecture designs associated with a program or…
Added 1 hour ago
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Data Architect
Rodan Energy Solutions Inc.
Mississauga, ON
- Full-time
Plan how platform data and dashboards can be integrated with other systems and securely shared with customers
Added 1 hour ago
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Senior Systems Integration Engineer
HDR
Toronto, ON
- Full-time
HDR is seeking a Senior Rail Systems Integration Engineer to join our Toronto office. Reporting to the Section Lead - Systems and Operations, you will be part of the larger North America…

Questrade Financial Group

Principal Software Engineer

Toronto, ON, Canada

Base salary range: $120,000 - $140,000

Apply About employer

Applications open in a new tab.

Job details

Pay: Base salary range: $120,000 - $140,000
Experience: Have 8+ years of software engineering experience, including time leading technical direction on complex, business-critical systems
Posting language: English
Posted: Oct 8, 2026

Original job description

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

This job posting is for an existing vacancy.

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

We are building a modern, in-house loan origination platform that takes a secured loan from application to funding: intake, underwriting, mortgage insurance, fulfillment, allocation and funding. It handles real money and real regulatory obligations, and it is changing quickly as we add new lending programs and bring AI into how we build and operate.

As a Principal Software Engineer, you will be the senior technical authority on this platform. You will set architectural direction, raise the engineering bar, and stay close to the code. We want someone with strong product instincts, who cares about what we build and why as much as how.

Need more details? Keep reading…

In this role, responsibilities include but are not limited to:

Owning the architecture and technical roadmap of the secured lending origination platform, balancing delivery speed with correctness, auditability and resilience
Writing and reviewing production C# and .NET code, and set the standard for how the team builds
Applying Domain-Driven Design to model complex lending workflows, keeping bounded contexts clean as the business grows
Designing and evolving event-driven services on GCP and Kubernetes, using CQRS where it fits, with reliable messaging and integrations with internal and external partners
Driving test-driven development and a strong automated testing culture, including end-to-end coverage with Playwright
Continuously finding better ways to leverage AI to improve efficiency and optimize outcomes, both in how the squad builds (tools like Claude Code across design, build, test and review) and in the origination platform itself
Setting the guardrails that keep AI-accelerated delivery safe and repeatable, and delivering AI-powered capabilities in the lending workflow, such as document handling, decision support and operational automation
Using AI to reduce manual effort for underwriters, fulfillment and operations teams, with clear human oversight where decisions affect clients
Shaping how AI is used across the full delivery lifecycle, from requirements and design through testing, release and production support, and measure the efficiency gains it delivers
Owning production health with Datadog: dashboards, monitors, tracing, incident response and continuous reliability improvements
Partnering with Product, Credit Risk, Operations and Compliance to shape the roadmap and turn lending policy into reliable, testable software
Mentoring engineers through design reviews, pairing and coaching

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

Have 8+ years of software engineering experience, including time leading technical direction on complex, business-critical systems
Have deep expertise in C# and .NET (modern .NET, ASP.NET Core, async programming, performance)
Have strong practical experience with Domain-Driven Design
Have a real test-driven development practice, including UI and end-to-end automation with Playwright
Have experience designing and running event-driven, distributed systems in production
Have hands-on experience with GCP and Kubernetes
Have experience with Datadog or comparable observability platforms for monitoring, tracing and alerting
Have real day-to-day experience with AI coding tools, a considered view on where they help and where they need guardrails, and a drive to keep finding new ways to apply AI to improve efficiency and outcomes
Have a strong product mindset: you understand the business problem, challenge requirements, and make trade-offs with customer and business outcomes in mind
Have excellent communication skills, with the ability to explain trade-offs to engineers and executives alike

Additional kudos if you…

Have experience with CQRS (and event sourcing)
Have background in lending, mortgages, banking or other regulated financial services
Have experience integrating third-party providers, such as insurers, credit bureaus and valuation services
Have experience building or integrating LLM-powered features
Are familiar with GitLab CI/CD and infrastructure as code
Have knowledge of Canadian mortgage regulation and privacy requirements

Compensation Information:

Base salary range: $120,000 - $140,000
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!

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.

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More about this job

Responsibilities

The Principal Software Engineer will own the architecture and technical roadmap for a secured lending origination platform while setting engineering standards. They will drive the implementation of AI-powered capabilities and mentor the engineering team through design reviews and code collaboration.

Requirements

Candidates must have 8+ years of software engineering experience with deep expertise in C# and .NET. Strong practical experience in Domain-Driven Design, event-driven systems, and cloud platforms like GCP is required.

Skills

C#
.NET
ASP.NET Core
Domain-Driven Design
GCP
Kubernetes
Datadog
Test-driven development
Playwright
Event-driven architecture
CQRS
AI integration
Software architecture
Cloud computing
Distributed systems
Mentoring

Benefits

Health and wellbeing resources
Paid vacation
Personal days
Sick days
Competitive compensation
Benefits packages
Career growth and development opportunities

Visa sponsorship

Not detected in the job text

Keywords

Software Engineering
C#
.NET
ASP.NET Core
Domain-Driven Design
GCP
Kubernetes
Datadog
Test-driven development
Playwright
Event-driven
CQRS
AI
Fintech
Lending
Mortgage
Architecture
Cloud
Observability
GitLab CI/CD
Infrastructure as Code
LLM
Distributed systems
Performance tuning
Async programming
Regulatory compliance
Financial services
Mentorship
Product mindset
Automation

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