Software Engineer II, Backend; Infrastructure

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Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without hidden fees or compounding interest. The Cost Engineering Team is looking for a Software Engineer II to drive financial visibility, cost efficiency, and long‑term economic sustainability across our cloud infrastructure. This role blends engineering, data analysis, and financial insight to ensure every technical decision supports availability while preserving cost efficiency.

• Break down larger projects into individual tasks, deliver them in multiple phases, and collaborate with teammates to ensure timely delivery.
• Support peers and stakeholders in the product development lifecycle by collaborating with product management, design, and analytics; participate in ideation, articulate technical constraints, and partner on decisions that consider risks and trade‑offs.
• Maintain the operations and availability of team artifacts by creating and monitoring metrics, escalating when needed, and supporting on‑call efforts.
• Contribute to a sense of community by engaging in growth and development activities, including participation in the interview process.

• At least 1.5 years of experience as a software engineer.
• Experience designing, developing, and launching backend systems; proficiency in Python or Kotlin.
• Familiarity with distributed system fundamentals and technologies such as AWS, MySQL, and Kubernetes.
• Experience building cost visibility via tagging or creating cost savings opportunities through cost analysis.
• Ability to turn a simple problem or business scenario into a solution that interacts with multiple software components, writing clear, well‑tested, and extensible code.
• Comfort navigating a large code base, debugging others’ code, and providing constructive feedback through code reviews.
• Ownership of personal growth, proactively seeking feedback from team, manager, and stakeholders.
• Strong verbal and written communication skills that facilitate collaboration with a global engineering team.
• Either equivalent practical experience or a Bachelor’s degree in a related field.

Pay Grade: L
Equity Grade: 6
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: $160,000 - $210,000
USA base pay range (all other U.S. states) per year: $142,000 - $192,000

• Health care coverage – company 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 to rest and recharge.
• ESPP – employee stock purchase plan enabling you to buy shares of Affim at a discount.

Affirm is a remote‑first company. The majority of roles are remote and can be done from anywhere within the country of employment. Some roles may require occasional onsite work in the assigned company office.

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, we will consider qualified applicants with arrest and conviction records.

By clicking “Submit Application,” you acknowledge that you have read Affim’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.