Top Engineering Jobs in Toronto, ON

Lead technical strategy and execution for a backend ledger team building audit-grade, highly available financial systems. Drive architecture, operational reliability, monitoring, code quality, mentorship, and cross-functional collaboration to deliver accurate, scalable ledger and accounting functionality.

Lead technical partner integrations and solutions for merchants and partners (e.g., Shopify, Stripe). Provide technical leadership, respond to partner inquiries, design and document integrations, advise on platform strategy and tooling, manage project plans and long-term initiatives, and support cross-functional commercial and product teams to improve BNPL checkout experiences.

Drive CI efforts, ensuring reliable and scalable development pipelines, while mentoring other engineers and improving developer productivity through tooling and automation.

Develop, launch, and maintain backend systems for card issuing and transaction processing. Break down projects, collaborate with product/design/analytics, write clear well-tested code, support operations and on-call duties, create/monitor metrics, perform code reviews, and participate in hiring and team growth activities.

Lead design and implementation of Affirm's Lakehouse Platform (Iceberg, Spark, Snowflake). Define technical strategy, enable secure governed access, improve analytics engineering practices, optimize performance and cost, operate at scale, mentor engineers, and collaborate cross-functionally to deliver reliable, discoverable, and cost-efficient analytical data infrastructure.

Build, operate, and extend Affirm's data platform and application tooling to enable self-service data applications at scale. Implement platform features (provisioning, CI/CD, access control), integrations, data governance, automation, observability, and on-call operations. Contribute to roadmap for semantic layers, agentic data tooling, and AI-native workflows while raising engineering and operational standards.

Build and maintain scalable integration and end-to-end test automation frameworks and CI pipelines. Optimize test execution, improve stability and reporting, support engineering teams with triage and best practices, write technical specs/ADRs, participate in on-call rotation, and collaborate across regions to evolve the companys test strategy and developer productivity tooling.

Lead design and delivery of Salesforce architecture and integrations for Revenue. Build custom development (Apex, LWC, Flow), govern CPQ and CLM (Ironclad) solutions, implement Workato integrations, mentor engineers, and partner cross-functionally to scale systems, ensure security, performance, and maintainability, and drive adoption of Salesforce capabilities including Einstein AI.

The Senior Staff Software Engineer will lead web platform architecture and development, mentoring engineers while driving improvements in infrastructure, web development strategy, and AI tool integration.

You will design, develop, and launch backend systems, APIs, and collaborate with cross-functional teams to support product development and operations.