Senior Software Engineer, Fullstack (Card Acquisition)

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. We help people pay over time for almost anything—with no late fees or surprises. Through advanced technology and analytics that look beyond FICO, we’re able to serve a much broader population than other lenders.

Affirm is seeking a Senior Full Stack Software Engineer to join the Acquisition & Onboarding team within the Consumer org. This is a high-impact leadership role for an engineer who can set technical direction, drive architectural decisions, and elevate the quality and velocity of full stack development across mobile, web, and backend systems. The team plays a critical role in shaping the first experience customers have with Affirm—building trust, clarity, and value from the very first interaction.

• Own and deliver quarterly goals for your team, leading engineers through ambiguity to solve open-ended problems.
• Support peers and stakeholders in the product development lifecycle by collaborating with product management, design, and analytics.
• Take ownership of your team’s operations and availability by ensuring monitoring, triage rotations, playbooks, policies, testing, and alerting are in place.
• Proactively identify project, process, technology, or business issues, advocate for them, and lead in solving them.
• Support the operations and availability of your team’s artifacts by creating and monitoring metrics, escalating when needed, and supporting on-call efforts.
• Foster a culture of quality and ownership by setting or improving code review and design standards, and advocating for them through writing and tech talks.
• Help develop talent on your team by providing feedback and guidance, and leading by example.

• Experience leading significant mobile initiatives (React Native or native), including defining architecture, coordinating cross-functional launches, and maintaining high reliability in production.
• Working across React Native and native boundaries (Swift/Kotlin), debugging platform-specific issues, and improving developer tooling, CI/CD, and release processes for mobile apps.
• Implementing experimentation, feature flagging, and analytics instrumentation in mobile applications.
• Shipping web apps using declarative UI frameworks like React or Vue.
• Proficient in JavaScript/TypeScript.
• 4+ years of experience as a software engineer.
• Designing, developing, and launching backend systems at scale using technologies like Python, Kotlin, AWS, MySQL, and Kubernetes.
• Defining technical plans for significant features with elegant, simple, and extensible design.
• Proficient at making significant changes in a large codebase with tools and practices for safe delivery.
• Demonstrates ownership of growth, proactively seeking feedback.
• Strong verbal and written communication skills for collaboration with a global engineering team.
• Equivalent practical experience or a Bachelor’s degree in a related field.

CAN base pay range per year: $153,000 - $213,000. Pay Grade - N, Equity Grade - 6. Total compensation 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. Employees may be eligible for equity rewards offered by Affirm Holdings, Inc. (parent company).

Additional benefits include: Health care coverage (Affirm covers all premiums 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), and ESPP (employee stock purchase plan enabling you to buy shares of Affirm at a discount).

Remote Canada. Affirm is a remote-first company; most 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.

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