Top Tech Jobs & Startup Jobs in Toronto

Architect, build, and operate large-scale relational and distributed SQL database infrastructure. Responsibilities include control-plane automation, provisioning, failover, backups, upgrades, zero-downtime migrations, Kubernetes networking, connection proxy optimization, reliability monitoring, capacity planning, and on-call support. The role also involves technical leadership, roadmap ownership, code quality standards, mentoring, and cross-functional collaboration.

Set technical strategy for backend identity decisioning systems, lead major engineering initiatives, and ensure highly available operations. Partner with product, design, and analytics teams; establish coding, architecture, monitoring, testing, and on-call standards; communicate technical decisions; and mentor engineers. Build and scale distributed systems supporting KYC, user lifecycle management, and identity decisions across international markets.

Lead technical strategy and execution for foundational Trust and Safety backend systems supporting consumer risk and credit reporting. Design and operate highly available distributed systems, improve reliability, monitoring, testing, and on-call processes, and guide cross-functional initiatives. Establish engineering standards, conduct technical planning, mentor engineers, communicate architectural decisions, and drive system quality, scalability, and sustainability across teams.

Build and launch backend identity decisioning systems that validate consumer identity and satisfy KYC requirements. Collaborate with Product, Compliance, Auth, Fraud, and engineering teams; break projects into deliverable phases; write tested, extensible code; monitor system metrics and availability; participate in on-call support, code reviews, interviewing, and team development.

Lead the design, development, delivery, and operation of secure, scalable authentication platform capabilities, including sign-in, account recovery, MFA, session management, authorization, and identity federation. Collaborate with Product, Security, Fraud, Compliance, and engineering teams; improve reliability, monitoring, code quality, and security practices; resolve production issues; mentor engineers; and communicate technical decisions and trade-offs.

Lead analytics for international market expansion, establishing scalable measurement, reporting, dashboards, data models, and operational analytics frameworks. Identify growth and profitability opportunities, define metrics, analyze performance, design experiments, and translate findings into business recommendations. Partner cross-functionally with Product, Risk, Finance, Commercial, and Operations, lead metric reviews, influence leadership decisions, and mentor junior analysts.

Own Affirm Canada's post-delinquency collections and recoveries strategy, including digital and outbound collections, agency placement, and post-charge-off recovery. Analyze performance, design experiments, quantify initiatives, manage vendor scorecards, and improve recovery outcomes. Partner with Product, Legal, and Compliance to ensure alignment with Canadian consumer protection, collections, and privacy regulations, while collaborating with international teams.

Lead Affirm’s enterprise AI security review program, threat-model AI and LLM applications, assess agentic systems and tool permissions, and design automated guardrails, controls, monitoring, and policy-as-code. Review code, prompts, configurations, vendors, and SaaS AI capabilities; develop testing and red-team scenarios; identify emerging vulnerabilities; support incident response; and lead cross-functional initiatives across Security, Engineering, Legal, Privacy, and Compliance.

Design and build scalable backend systems, APIs, data models, event-driven services, experimentation platforms, and personalization systems. Partner with Product, Data Science, Analytics, and Design teams to support customer acquisition and engagement. Establish secure, observable, high-performance engineering practices, mentor junior engineers, and participate in monitoring, on-call, and operational support.

Write and refine copy for email, push notifications, in-app messaging, and web. Collaborate with product, marketing, design, engineering, and legal teams to develop messaging frameworks, maintain voice and tone, support campaigns, and optimize content through A/B testing and performance analysis. Ensure messaging is clear, scalable, user-centric, and compliant with regulatory standards across Affirm’s digital experiences.