Senior Software Engineer, Backend

Senior Software Engineer, Backend (Decisions and Pricing Foundations) Join to apply for the Senior Software Engineer, Backend (Decisions and Pricing Foundations) role at Affirm 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 Affirms beating heart: the Underwriting Engine. We architect, modernize, and optimize Affirms underwriting capabilities to serve an ever‑increasing number of consumers and merchants while maintaining high availability and excellent economics. What You’ll Do You will be responsible for owning and delivering quarterly goals for your team, leading engineers on your team through ambiguity to solve open‑ended problems, and ensuring that everyone is supported throughout delivery. You will support your peers and stakeholders in the product development lifecycle by collaborating with product management, design & analytics by participating in ideation, articulating technical constraints, and partnering on decisions that properly consider risks and trade‑offs. You will proactively identify project, process, technology or business issues, advocate for them, and lead in solving them. You will support the operations and availability of your team’s artifacts by creating and monitoring metrics, escalating when needed, and supporting keep‑the‑lights‑on & on‑call efforts. You will foster a culture of quality and ownership on your team by setting or improving code review and design standards for your team, and advocating for them beyond your team through your writing and tech talks. You will help develop talent on your team by providing feedback and guidance, and leading by example. What We Look For You have 4+ years of experience designing, developing and launching backend systems at scale using languages like Python or Kotlin. You have a track record of developing highly available distributed systems using technologies like AWS, MySQL and Kubernetes. You are familiar with processing data offline using frameworks like Spark or Ray. You have knowledge of stream processing architectures and are able to bridge the gap between online and offline systems with hybrid designs. You have experience defining a technical plan for the delivery of a significant feature or system component with an elegant, simple and extensible design. You write high‑quality code that is easily understood and used by others. You are proficient at making significant changes in a large code base, and have developed a suite of tools and practices that enable you and your team to do so safely. Your experience demonstrates that you take ownership of your growth, proactively seeking feedback from your team, your manager, and your stakeholders. You have strong verbal and written communication skills that support effective collaboration with our global engineering team. Pay Grade - N Equity Grade - 6 Base pay is part of a total compensation package that may include monthly stipends for health, wellness and tech spending, and benefits (including 100% subsidized medical coverage, dental, and vision for you and your dependents). In addition, the employees may be eligible for equity rewards offered by AFFIRM Holdings, Inc. (parent company). CAN base pay range per year: $150,000 - $200,000. 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. Affirmsers in proximal roles have the flexibility to work remotely, but will occasionally be required to work out of their assigned Affirms office. A limited number of roles remain office‑based due to the nature of their job responsibilities. Benefits Health care coverage – Affirms 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 Affirms at a discount. 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. (For U.S. positions that could be performed in Los Angeles or San Francisco) Pursuant to the San Francisco Fair Chance Ordinance and Los Angeles Fair Chance Initiative for Hiring Ordinance, Affirms will consider for employment qualified applicants with arrest and conviction records. By clicking "Submit Application," you acknowledge that you have read Affirms Global Candidate Privacy Notice and hereby freely and unambiguously give informed consent to the collection, processing, use, and storage of your personal information as described therein. Seniority Level: Mid‑Senior level. Employment Type: Full‑time. Job Function: Engineering and Information Technology. #J-18808-Ljbffr