We create honest financial products that improve lives.
Senior Software Engineer, Backend – Merchant Advocacy
Location
Canada
Posted
81 days ago
Salary
$150K - $200K / year
Seniority
Senior
Job Description
Senior Software Engineer, Backend – Merchant Advocacy
Affirm
• Design & expand the backbone of our platform to scale to hundreds of thousands of merchants from all around the world • Design and align the scope of work with other teams to deliver cross-team projects • Mentor other engineers to ensure their development & growth • Partner with Engineering Manager and Team Lead to drive and execute the long-term vision of the team • Execute technical strategy for broad or complex requirements with insightful and forward-looking approaches that go beyond the direct team and solve large open-ended problems • Utilize agentic development tools like Claude Code to automate parts of the development process • Improve engineering standards, tooling, and processes throughout the organization
Job Requirements
- 5+ years of experience as a backend software engineer
- A strong understanding of Domain-Driven Design, distributed systems, and how architectural decisions affect performance and maintainability
- Proficiency with data models, API design (http and RPC), state machines, event-driven architecture, and database design
- Excellent communication skills, both written and verbal. Must be proficient in asynchronous communication–written tech specs, ADRs, project plans, etc.
- Experience designing, developing, and launching backend systems (our stack: AWS, gRPC, Snowflake, Kotlin, Python, MySQL, Kubernetes). Java and Kotlin experience are especially helpful.
- Prior experience with monitoring and alerting systems (sentry.io, rollbar, chronosphere, kibana)
Benefits
- Health care coverage - Affirm covers all premiums for all levels of coverage for you and your dependents
- Flexible Spending Wallets - generous stipends for spending on Technology, Food, various Lifestyle needs, and family forming expenses
- Time off - competitive vacation and holiday schedules allowing you to take time off to rest and recharge
- ESPP - An employee stock purchase plan enabling you to buy shares of Affirm at a discount
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