KeyStep

Software Engineer I, Backend (Purchasing Power Experience)

Affirm
Remote US
28 days ago
full-timeremote

Skills & Technologies

PythonKotlinBackendDistributed SystemsMySQLAWSKubernetesSAFeCredit RiskeCommerceMake

Job Description

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.

Join the Credit Engineering group and partner with Product and Credit Risk to solve complex challenges on how to protect consumers from overextending themselves while enabling Affirm to be where consumers need us most. As part of the team, you will focus on designing and implementing new features in our underwriting platform to support our partnered merchants and our users across a wide number of interfaces, including Affirm Card, ecommerce sites, and the app. You will have a direct impact on the performance of Affirm as we look to continue to grow and expand the reach out of Affirm loans in a safe and responsible way for our customers!

What You'll Do

  • With the support of your team, you will work on tasks that contribute to the team's projects and goals.
  • You will work collaboratively and proactively with your team and stakeholders, bringing them along for your work and helping to create visibility and dialog regarding the risks and trade-offs related to your work.
  • You will strike the right balance of speed and quality in your work, ensuring that we hit our business goals while protecting our systems from downtime.
  • You will contribute to a sense of community on your team by engaging in growth and development activities.

What We Look For

  • You have previous work or internship experience designing, developing and launching backend systems at scale and are experienced using one of Python or Kotlin.
  • You are familiar with the building blocks of distributed systems, and the technologies like AWS, MySQL and Kubernetes.
  • You have mastered taking 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.
  • You are comfortable navigating a large code base, deb

Company & Role Analysis

JobSeeker+
Likely perks
Private MedicalPension25+ Days HolidayStock OptionsLearning BudgetFlexible Hours
Culture & working style

Neutral 2–4 sentence summary of what working at this company is like, drawn from public reviews and press coverage. Tone, collaboration style, pace, benefits highlights.

Market salary range

£45,000 – £60,000 (Glassdoor, Levels.fyi, 2025)

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