Top Tech Jobs & Startup Jobs in Toronto

Build and launch scalable backend systems and APIs for Affirm’s partner and merchant integrations. Responsibilities include breaking projects into deliverable phases, collaborating with product, design, and analytics teams, monitoring service health, participating in on-call operations, debugging code, conducting code reviews, and supporting team development. The role requires backend development experience with Python or Kotlin, distributed systems knowledge, and familiarity with AWS, MySQL, and Kubernetes.

Develop backend tools and systems that improve batch development, testing, and reliability. Responsibilities include breaking projects into deliverable phases, collaborating with product and infrastructure teams, monitoring system metrics, supporting on-call operations, writing tested and extensible code, debugging, participating in code reviews, and contributing to engineering growth activities.

Lead the global Customer Operations strategy for expansion programs involving new products, merchants, geographies, and channels. Build repeatable operating models, governance, standards, and playbooks while managing cross-functional dependencies, budgets, risks, and performance. Lead and develop program and process management teams, partner with Product, Engineering, Analytics, Risk, and Service Delivery, and drive post-launch operational improvements across international markets.

Build and scale Affirm’s managed cache platform using Redis and Valkey. Responsibilities include cluster migrations, capacity and shard planning, failover and replication, upgrades, self-service automation, monitoring, SLOs, incident response, and advising teams on caching strategy. The role also involves designing tested backend systems, collaborating across engineering and product teams, participating in on-call operations, and contributing to code reviews and team development.

Lead the Consumer Payments product roadmap at Affirm by identifying payment friction, creating easier repayment experiences, running experiments, improving payment success and cost efficiency, and balancing performance and risk. Partner with Engineering, Analytics, Finance, Design, Partnerships, and senior leaders to prioritize opportunities, define strategy, and deliver products from discovery through launch and iteration.

Design and build backend APIs, microservices, and checkout platform components for Affirm’s financial products. Improve system performance, reliability, tooling, and engineering standards while collaborating across teams. Own components over their lifecycle, contribute to technical decisions, ship high-quality software at scale, and support peer development through communication and knowledge sharing.

Lead the design, development, and technical strategy for high-availability financial services supporting Affirm’s card loan platform. Build scalable APIs, data models, microservices, and event-driven systems; troubleshoot performance and reliability issues; collaborate cross-functionally on loan attribution and lifecycle requirements; and mentor engineers through technical guidance, design reviews, and code reviews.

Own the strategy and roadmap for Affirm’s consumer credit experiences across shopping, repayment, and marketing. Lead discovery, experimentation, personalization, and cross-functional execution with Engineering, Design, Analytics, Credit, Marketing, Commercial, and Legal teams. Translate complex credit capabilities into intuitive consumer journeys, including prequalification and purchasing power experiences. Define success metrics and improve activation, conversion, repeat engagement, comprehension, and responsible access to credit.

Develop and scale backend streaming and data infrastructure using technologies such as Kafka, Flink, AWS, and Kubernetes. Design, launch, test, and maintain distributed systems, monitor service availability, participate in on-call support, collaborate with product and engineering stakeholders, review code, and contribute to technical planning and team development.

Lead technical strategy and architecture for a backend search team building highly available distributed systems, recommendations, and discovery experiences. Partner with product, design, and analytics; establish engineering standards, operational processes, monitoring, testing, and on-call practices. Drive major technical initiatives, mentor engineers, communicate technical direction, and support scalable consumer and merchant experiences.