The opportunity
At Affirm, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most.
What you'll do
You will own the technical design and delivery of significant authentication: platform capabilities, leading projects from early requirements and architecture through implementation, rollout, and ongoing operation.
You will build secure, highly available systems that support consumer: sign-in, authentication factors, account recovery, step-up authentication, session management, authorization, and identity federation.
You will support your peers and stakeholders in the product development: lifecycle by collaborating with product management, Security, Fraud, Compliance, design, and analytics; participating in ideation; articulating technical constraints; and partnering on decisions that properly consider risks and trade-offs.
You will translate security, regulatory, fraud, and customer-experience: requirements into pragmatic technical designs that appropriately balance risk, friction, complexity, and delivery speed.
You will proactively identify project, process, technology, security,: reliability, 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,” and on-call efforts.
What they're looking for
- You will foster a culture of quality, security, and ownership on your team by: setting or improving code review and design standards 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,: mentoring other engineers through design reviews and hands-on collaboration, and leading by example.
- You will clearly communicate technical decisions, constraints, risks, and: trade-offs to engineering and non-engineering audiences through design documents, reviews, and technical discussions. You will lead the investigation and resolution of complex production issues and identify systemic improvements that prevent recurrence.
- You have 4+ years of experience designing, developing, and launching backend: systems at scale using languages like Python, Kotlin, Java, or another comparable modern programming language.
