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. Paid vacation, personal, and sick days for work-life balance Work-life balance in a hybrid environment with at least 3 days in office Opportunities to contribute to community causes We’re looking for our next Senior Principal Site Reliability Engineer.

Could It Be

You?

The Senior Principal Site Reliability

Engineer is directly responsible for the stability, resiliency, and scalability of business‑critical brokerage back‑end applications running across a hybrid on‑premises and cloud architecture. This individual drives reliability engineering practices — SLOs/SLIs, observability, incident response, and capacity planning — while also making hands‑on, code contributions directly into multiple applications across different technology stacks using an inner‑source model. The role blends deep technical execution with cross‑team influence: this person is expected to identify systemic reliability risks, fix them where they appear, and raise the operational bar for every team they touch.

This position is a strong fit for a hands‑on senior principal engineer who is energized by fixing production reliability at the source, is comfortable navigating multiple codebases and cloud/on‑prem environments, and wants to have an outsized impact on the resiliency of a regulated, high‑availability brokerage platform. Lead root‑cause analysis and blameless post‑incident reviews for high‑severity production incidents; Champion a culture of operational excellence, toil reduction, and AI and automation‑first thinking across engineering teams. Cross‑Stack Engineering & Inner Sourcing Make hands‑on, code contributions directly into multiple applications spanning different languages, frameworks, and stacks,



using an inner‑source model to fix reliability defects, add instrumentation, and improve resiliency patterns.

Partner with individual application teams to raise pull requests, follow their contribution standards, and pair with owning engineers so fixes land safely and are properly reviewed and owned long‑term. Contribute to and help govern internal reliability tooling, shared SDKs, and common patterns (circuit breakers, backoff/retry, health checks) that can be inner‑sourced across teams. Design and advise on cloud scalability strategies (auto‑scaling, load balancing, multi‑region/multi‑AZ failover, caching, queuing) for workloads that span on‑premises data centers and public cloud.

Guide capacity and cost‑aware scaling decisions, balancing performance, resiliency, and cloud spend across hybrid deployments. disaster recovery, active‑active/active‑passive architectures, data replication strategies) appropriate for regulated brokerage workloads.

Organizational

Awareness & Risk Bring strong organizational awareness of the operational, financial, regulatory, and reputational risk that production incidents pose to a brokerage business, and factor that into prioritization. Participate in risk assessments related to system reliability, availability, and disaster recovery, partnering with Risk, Compliance, and Information Security as needed. Contribute to change management and release governance practices that reduce the likelihood and blast radius of production incidents.

Promptly identify, elevate, and help remediate reliability or security‑related incidents in accordance with company policy. Act as a technical reference and mentor for reliability engineering practices, coaching application teams on operational excellence without formal direct reports. lead or contribute to internal tech talks and communities of practice. Partner with engineering leadership to define the reliability roadmap and report on progress against stability goals.





So are YOU our next Senior Principal Site Reliability Engineer.? Bachelor's or Master's degree in Computer Science, Information Systems, Engineering, or a related field, or equivalent combination of education and experience. ~8+ years of software engineering and/or site reliability engineering experience, including production ownership of business‑critical applications; Demonstrated ability to read, debug, and make minor‑to‑moderate code changes across multiple languages/stacks (e.g., Java, .NET, Node.js/TypeScript, Python) in an inner‑source or cross‐team contribution model. ~ Deep experience with cloud scalability strategies on one or more major providers (AWS, Azure, GCP), including auto‑scaling, load balancing, multi‑region resiliency, and cost‑aware capacity planning. ~ Experience operating and supporting hybrid architectures spanning on‑premises data centers and cloud environments. ~ Prometheus/Grafana, Datadog, Splunk, ELK, AppDynamics, Dynatrace) and building actionable alerting and dashboards. ~ Experience with CI/CD pipelines and infrastructure‑as‑code (e.g., Terraform, Ansible, CloudFormation) in support of reliable, repeatable deployments. ~ Solid understanding of microservices architecture, distributed systems failure modes, and resiliency patterns (circuit breakers, retries/backoff, bulkheads, timeouts). ~ Familiarity with relational and NoSQL data stores and their operational/scaling characteristics. ~ Knowledge of security, audit, and regulatory considerations relevant to brokerage / financial services production systems. ~ It includes a comprehensive benefits plan and a competitive incentive (bonus) program for Full‑Time Permanent roles. #At Questrade Financial Group of Companies, with multiple office locations around the world, we are committed to fostering a diverse, inclusive and accessible work setting. 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

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📌 Remote: Principal Site Reliability Engineer (Toronto)
🏢 Questrade Financial Group
📍 Toronto