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The Staff Software Engineer will lead technical strategy for identity and KYC verification systems within Affirm's international expansion unit. The role involves building scalable, highly available backend services using Python or Kotlin, AWS, and Kubernetes to support global market growth.
The Staff Software Engineer will lead technical strategy for identity and KYC verification systems within Affirm's international expansion unit. The role involves building highly available distributed backend systems using Python or Kotlin to support global market growth.
Senior backend engineer on Affirm's Money Movement & Card Ledger team, building and operating systems for money movement, bank data integration, and merchant data powering the Affirm Card (debit card + BNPL). Day-to-day involves leading delivery, on-call support, and distributed backend work with Python/Kotlin, AWS, MySQL, and Kubernetes.
A senior technical leadership role at Affirm (buy-now-pay-later lender) defining and driving full-stack technical strategy for Marketplace, Search, Ads, and app-based consumer experiences across iOS, Android, and Web. The engineer sets architecture and roadmap, mentors engineers, and leads cross-team delivery of scalable, reliable consumer-facing features.
Senior backend engineer at Affirm building and scaling the data platforms and services that process loan originations in real time and deliver accurate reporting to Affirm and its financial partners. Day-to-day involves leading delivery, designing distributed data pipelines, and on-call support, using Python/Kotlin, AWS, MySQL, Kubernetes, Spark, and Airflow.
Senior backend engineer on Affirm's Growth Platform team, designing scalable APIs, event-driven services, and experimentation/personalization systems that power customer acquisition and engagement. Core stack includes Python or Kotlin, AWS, and stream processing tools like Kafka/Kinesis. Remote within approved Canadian provinces.
Affirm is hiring a Senior Backend Engineer for its Consumer Authentication Platform team to design, build, and operate the secure sign-in, session, identity-federation, and step-up authentication systems serving millions of consumers across thousands of merchants. The work centers on backend systems at scale (Python/Kotlin/Java, AWS, MySQL, Kubernetes) plus auth standards like OAuth 2.0, WebAuthn/
Staff backend engineer on Affirm's Identity team, which owns KYC, user lifecycle, and identity decisioning for all markets outside North America. You set the team's technical strategy, build highly available distributed backend services (Python/Kotlin, AWS, MySQL, Spark, Kubernetes), and own operational reliability, code standards, and mentorship.
Engineering manager role leading Affirm's Marketplace Performance team, which builds the company's first full-featured ads platform and monetization artifacts for its shopping marketplace. Day to day: set technical strategy, manage operations/on-call, drive cross-functional delivery, and develop engineers using Python/Kotlin, AWS, MySQL, Spark, Kubernetes, and React.
Senior backend engineer on Affirm's Online Storage team, building and operating the control plane for large-scale MySQL and TiDB database fleets on Kubernetes — automating provisioning, failover, backups, zero-downtime migrations and tuning connection proxies for Affirm's mission-critical fintech storage platform.
Backend engineer (Level II) on Affirm's Streaming team, which owns the event-driven data infrastructure behind Affirm's pay-over-time product. Day to day: designing and scaling stream-processing systems with Kafka, Flink and Kubernetes on AWS, shipping backend services in Python or Kotlin, and sharing on-call duties.
At Affirm, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. As we build Affirm's advertising…
Senior Software Engineer on Affirm's Card Loan Platform team, building the high-throughput decision engine that matches every pay-later card swipe to the correct loan in milliseconds. Day to day: leading end-to-end design of large-scale, event-driven backend services and APIs in languages like Python or Kotlin on cloud platforms, while mentoring engineers.
Backend engineer on Affirm's Online Storage team building and scaling managed Redis/Valkey cache services for mission-critical financial data — owning cluster migrations, capacity planning, self-service automation, SLOs/alerting, and on-call. Stack: Redis/Valkey, Python or Kotlin, AWS, Terraform, Kubernetes.
Senior fullstack engineer at Affirm building the consumer app experience across web and mobile surfaces — breaking down projects, collaborating with product/design/analytics, and keeping team services healthy. Stack spans declarative web UIs (React/Vue), React Native mobile apps, and APIs at scale in Kotlin or Python.
Fullstack engineer on Affirm's Ads Platform team, building technology that lets merchant partners deploy ad budgets and reach targeted consumers in Affirm's Marketplace. Day to day: breaking down and shipping projects in phases, building React web apps and Python/Kotlin APIs at scale, and supporting on-call operations.
Senior backend engineer on Affirm's Marketing & Privacy Engineering team, building data pipelines, identity/event systems, and attribution and conversion measurement that tie marketing channels to signup and GMV outcomes. Core stack includes Python or Kotlin, AWS, MySQL, Kubernetes, Snowflake, dbt, and Airflow, plus marketing tech like GTM and GA4.
Senior backend engineer on Affirm's Lakehouse Infra team, owning the data lake infrastructure that backs money- and loan-movement batch and analytics workloads. Day to day: leading delivery of team goals, keeping systems available and on-call, and building with Python/Kotlin, AWS, Kubernetes, and data tools like Iceberg, Spark, Flink, and Airflow. Remote within Canada.
Senior Staff backend engineer at Affirm defining and leading technical strategy for the Cards team, which is reinventing credit cards with card issuers. The role sets technical direction and architecture, champions AI-driven ways of working, mentors engineers, and drives delivery of scalable, reliable backend systems.
Affirm is hiring an early-career fullstack engineer for its Search team, improving search across its Marketplace and new Ads business. Day to day you ship features and fix issues across a large codebase, working with JavaScript/TypeScript on the frontend and Python or Kotlin backend services, remotely from Canada.
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