Senior Software Engineer, Backend; Decisions and Pricing Foundations

Senior Software Engineer, Backend (Decisions and Pricing Foundations)
Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. The Decisions and Pricing Foundations team owns the foundational aspect of the underwriting engine, architecting, modernizing, and optimizing our underwriting capabilities to serve an ever increasing number of consumers and merchants while maintaining high availability and excellent economics.

What You'll Do

Own and deliver quarterly goals for your team, leading engineers through ambiguity to solve open-ended problems and ensuring that everyone is supported throughout delivery.

Collaborate with product management, design, and analytics throughout the product development lifecycle, participating in ideation, articulating technical constraints, and partnering on decisions that properly consider risks and trade-offs.

Proactively identify project, process, technology, or business issues, advocate for them, and lead in solving them.

Support the operations and availability of the team’s artifacts by creating and monitoring metrics, escalating when needed, and supporting “keep the lights on” and on‑call efforts.

Foster a culture of quality and ownership on the team by setting or improving code review and design standards and advocating for them beyond the team through writing and tech talks.

Help develop talent on the team by providing feedback, guidance, and leading by example.

What We Look For

4+ years of experience designing, developing, and launching backend systems at scale using languages like Python or Kotlin.

Track record of developing highly available distributed systems using technologies like AWS, MySQL, and Kubernetes.

Familiar with processing data offline using frameworks like Spark or Ray.

Knowledge of stream processing architectures and ability to bridge the gap between online and offline systems with hybrid designs.

Experience defining a technical plan for the delivery of a significant feature or system component with an elegant, simple, and extensible design.

Write high quality code that is easily understood and used by others.

Proficient at making significant changes in a large code base, developing tools and practices that enable safe changes.

Take ownership of growth, proactively seeking feedback from team, manager, and stakeholders.

Strong verbal and written communication skills that support effective collaboration with the global engineering team.

Compensation
Pay Grade – N. Equity Grade – 6. Base pay range per year: $150,000 – $200,000. Additional monthly stipends for health, wellness, and tech spending are included.

Benefits

Health care coverage – all premiums paid for all levels of coverage for you and your dependents.

Flexible Spending Wallets – generous stipends for technology, food, lifestyle needs, and family forming expenses.

Time off – competitive vacation and holiday schedules allowing you to take time off to rest and recharge.

ESPP – employee stock purchase plan enabling you to buy shares of the company at a discount.

Affirm is proud to be a remote‐first company. The majority of roles are remote and can work almost anywhere within the country of employment. Remote candidates may occasionally be required to work out of an assigned office. Some roles remain office‑based due to job responsibilities.

Affirm complies with the Equal Employment Opportunity (EEO) statement and considers applicants with arrest and conviction records under the San Francisco Fair Chance Ordinance and Los Angeles Fair Chance Initiative for Hiring Ordinance.

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.

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