Software Engineer II, Backend (Merchant & Partner Lifecycle)
About the role
The Merchant & Partner Lifecycle (M&PL) team is transforming Affirm’s architecture to address critical risks and consolidate merchant lifecycle orchestration. As a technical leader, you will build the new lifecycle-orchestrator service, focusing on immediate availability improvements and modernizing the codebase.
Responsibilities
- Design and expand the backbone of our platform to scale to hundreds of thousands of merchants worldwide
- Partner with Engineering Manager and Team Lead to execute the long-term vision of the team
- Utilize agentic development tools like Claude Code to automate parts of the development process
- Improve engineering standards, tooling, and processes throughout the organization
Requirements
- 3+ years of experience as a backend software engineer
- Familiarity with Domain-Driven Design, distributed systems, and how architectural decisions affect performance and maintainability
- Experience with concepts such as data models, API design (HTTP and RPC), state machines, event-driven architecture, and database design
- Excellent communication skills, both written and verbal
- 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)
Qualifications
- Equivalent practical experience or a Bachelor’s degree in a related field
Skills
- Agentic development tools
- Backend system design
- Communication skills
- Monitoring and alerting systems
Benefits
- Base Pay Grade - L
- Equity Grade - 6
- Total compensation package including equity rewards, monthly stipends, and benefits
- Competitive benefits package including health care coverage, flexible spending wallets, time off, ESPP, and more
USA base pay range (CA, WA, NY, NJ, CT) per year: $165,000 - $225,000
USA base pay range (all other U.S. states) per year: $146,000 - $206,000
Affirm is proud to be a remote-first company! The majority of our roles are remote, and you can work almost anywhere within the country of employment. Affirmers in proximal roles have the flexibility to work remotely, but will occasionally be required to work out of their assigned Affirm office. A limited number of roles remain office-based due to the nature of their job responsibilities.
We believe It’s On Us to provide an inclusive interview experience for all, including people with disabilities. We are happy to provide reasonable accommodations to candidates in need of individualized support during the hiring process.