Senior Software Engineer (Experimentation Platform)

Senior Software Engineer (Experimentation Platform)Join to apply for the Senior Software Engineer (Experimentation Platform) role at AffirmSenior Software Engineer (Experimentation Platform)Join to apply for the Senior Software Engineer (Experimentation Platform) role at AffirmGet AI-powered advice on this job and more exclusive features.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 Affirm Experimentation Platform (AXP) team empowers Affirm to make data-driven decisions and enable safe rollouts. We support launches through Feature Flags and enable hypothesis-driven learning through controlled Experiments that help grow the business.AXP builds the APIs, systems, and workflows that allow engineers to target, ramp, and measure changes. We believe Simpler is Better and strive to improve our Engineer's ability to deliver impact without compromising availability.What You'll DoYou 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 ForYou 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 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.This position requires either equivalent practical experience or a Bachelor’s degree in a related field.Base Pay Grade - N Equity Grade - USA 8Employees new to Affirm typically come in at the start of the pay range. Affirm focuses on providing a simple and transparent pay structure which is based on a variety of factors, including location, experience and job-related skills.Base pay is part of a total compensation package that may include equity rewards, monthly stipends for health, wellness and tech spending, and benefits (including 100% subsidized medical coverage, dental and vision for you and your dependents.)USA base pay range (CA, WA, NY, NJ, CT) per year: $190,000 - $240,000USA base pay range (all other U.S. states) per year: $169,000 - $219,000Affirm 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.BenefitsWe’re extremely proud to offer competitive benefits that are anchored to our core value of people come first. Some key highlights of our benefits package include:Health care coverage - Affirm covers all premiums for all levels of coverage for you and your dependentsFlexible Spending Wallets - generous stipends for spending on Technology, Food, various Lifestyle needs, and family forming expensesTime off - competitive vacation and holiday schedules allowing you to take time off to rest and rechargeESPP - An employee stock purchase plan enabling you to buy shares of Affirm at a discountWe 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, Affirm will consider for employment qualified applicants with arrest and conviction records.By clicking "Submit Application," you acknowledge that you have read Affirm's 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 levelSeniority levelMid-Senior levelEmployment typeEmployment typeFull-timeJob functionJob functionEngineering and Information TechnologyReferrals increase your chances of interviewing at Affirm by 2xGet notified about new Senior Software Engineer jobs in Palo Alto, CA.Senior Engineer - Warehouse Management SystemBrisbane, CA $140,000.00-$180,000.00 2 weeks agoPalo Alto, CA $140,000.00-$200,000.00 1 month agoRedwood City, CA $200,000.00-$275,000.00 3 weeks ago[Future Opportunities] Senior Software Engineer, C++San Francisco Bay Area $120,000.00-$155,000.00 3 weeks agoSenior/Staff+ Software Engineer - Ledger TeamSan Mateo, CA $100,000.00-$180,000.00 11 months agoSr. Software Engineer, Full-Stack Opening, USASenior Software Engineer, Backend (Streaming)San Francisco Bay Area $155,000.00-$195,000.00 17 hours agoSenior Backend Engineer, Internal SoftwareFremont, CA $175,000.00-$205,000.00 1 week agoSr. Software Engineer, Full-Stack Opening, ChileSan Jose, CA $90,000.00-$185,000.00 1 day agoMountain View, CA $216,000.00-$312,550.00 3 days agoMountain View, CA $165,000.00-$215,000.00 2 weeks agoPalo Alto, CA $170,000.00-$210,000.00 2 weeks agoSenior Software Engineer, Backend (Batch Infrastructure)Senior Software Engineer, Backend (Streaming)Senior or Staff Software Engineer, Database EngineerSan Francisco Bay Area $200,000.00-$240,000.00 2 weeks agoSoftware Engineering Technical Leader (Full-Stack)Senior or Staff Software Engineer, Product (Full Stack)Redwood City, CA $165,000.00-$195,000.00 2 weeks agoWe’re unlocking community knowledge in a new way. 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Created: 2025-09-23