Senior Software Engineer, Backend; Merchant Interfaces

Job Overview

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 Partner Merchant Interface (PMI) team builds the APIs and solutions that power Affirm’s integrations with Enterprise Merchants and Partners. We create and manage the APIs and tools that drive checkout and merchant onboarding, and we collaborate with stakeholders to design and build custom end-to-end integrated solutions.

• Break down larger projects into individual tasks, deliver them in multiple phases, and collaborate with others to ensure timely delivery of your work.
• Support 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.
• Contribute to the entire API lifecycle, including designing, developing, testing, maintaining, and evolving our APIs.
• 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.
• Contribute to a sense of community on your team by engaging in growth and development activities such as participation in the interview process.

• 5+ years of experience as a software engineer.
• Experience designing, developing and launching backend systems and are proficient in one of Python or Kotlin.
• Familiarity with the building blocks of distributed systems, and the technologies like AWS, MySQL and Kubernetes.
• Ability to take a simple problem or business scenario into a solution that interacts with multiple software components, and executing on it by writing clear, easily understood, well tested and extensible code.
• Comfort navigating a large code base, debugging others' code, and providing feedback to other engineers through code reviews.
• Strong verbal and written communication skills that support effective collaboration with our global engineering team.
• Bachelor’s degree in a related field or equivalent practical experience.

Competitive benefits package including:

• Health care coverage - Affirm 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 Affirm at a discount

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.

Affirm is an equal opportunities employer and welcomes applications from all qualified candidates. We believe It’s On Us to provide an inclusive interview experience for all, including people with disabilities.