Affirm

Software Engineer II, Backend (Infrastructure Platform)

Affirm$146K — $206K *
US-AnywhereRemote in United States
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree or equivalent experience in a related field
  • 1.5+ years as a software engineer
  • Strong Python proficiency, particularly with data-intensive applications and robust APIs
  • Problem-solving and product-focused mindset for rapid iteration
  • Hands-on experience with AI-assisted development tools like Cursor, Claude
  • Familiarity with LLMs or AI frameworks for enhancing automation

Responsibilities

  • Build a centralized reliability command center for unified system health monitoring
  • Create AI agents for incident triage and log summarization
  • Develop developer-facing features and APIs for data exploration
  • Utilize AI-assisted tools for quick prototyping and shipping of code
  • Own projects from inception to iteration, addressing feedback effectively
  • Collaborate closely with product, infra, data, and SRE teams to address pain points

Benefits

  • 100% subsidized medical coverage for you and dependents
  • Generous stipends for technology, food, and lifestyle needs
  • Competitive vacation and holidays for work-life balance
  • Employee stock purchase plan at a discount
Full Job Description
We're looking for a Software Engineer to design and build a next-generation reliability platform for Affirm's production systems. You'll blend traditional distributed systems engineering with AI-assisted development to give teams a single place to understand, debug, and improve the health of their services.

This is a highly creative, hands-on role for someone who loves "vibe coding" - rapidly iterating, shipping, and refining with strong intuition- while still holding a very high bar for reliability, quality, and maintainability.

What you will do
  • Build a centralized reliability command center that gives teams a unified view of system health, risk, and reliability across services and environments.
  • Create AI agents that can assist with incident triage, root-cause exploration, log/trace summarization, and recommended next actions.
  • Create delightful developer-facing features and APIs that help engineers explore data, debug issues, and make better decisions.
  • Use AI-assisted development tools (e.g., Cursor, Claude, Copilot-like tools) as leverage to prototype, refactor, and ship high-quality code quickly.
  • Own projects end-to-end: requirements, architecture, implementation, testing, rollout, and iteration based on feedback.
  • Collaborate closely with partner teams (product, infra, data, SRE) to understand pain points and translate them into simple, powerful solutions.


What we look for
  • This position requires either equivalent practical experience or a Bachelor's degree in a related field
  • 1.5+ years of experience as a software engineer
  • Strong proficiency in Python, with experience architecting data-intensive applications and robust APIs
  • Problem-solving and product sense: you care about the "what" and the "why," not just the "how." You are capable of taking ambiguous requirements and rapidly iterating towards a working solution
  • Hands-on experience with AI-assisted development, such as Cursor, Claude, or similar tools, and enthusiasm for using them to build and ship features faster.
  • Practical use of LLMs or AI frameworks to enhance automation and guidance with guardrails and citations


Base Pay Grade - L

Equity Grade - 6

Employees new to Affirm typically come in at the start of the pay range. Affirm focuses on providing a simple and transparent pay structure which is based on a variety of factors, including location, experience and job-related skills.

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: $165000 - $225000

USA base pay range (all other U.S. states) per year: $146000 - $206000

#LI-Remote

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. Affirmers in proximal roles have the flexibility to work remotely, but will occasionally be required to work out of their assigned Affirm office. A limited number of roles remain office-based due to the nature of their job responsibilities.

We're extremely proud to offer competitive benefits that are anchored to our core value of people come first. Some key highlights of our benefits package include:
  • 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

About Affirm

Affirm is a publicly traded financial technology company headquartered in San Francisco, United States. Founded in 2012, the company operates as a financial lender of installment loans for consumers to use at the point of sale to finance a purchase. Affirm was founded in 2012 by Max Levchin, Nathan Gettings, Jeffrey Kaditz, and Alex Rampell as part of the initial portfolio of startup studio HVF. Levchin, who co-founded PayPal, became CEO of Affirm in 2014. In October 2017, the company launched a consumer app that allowed loans for purchases at any retailer. The company announced a partnership with Walmart in February 2019. Under the partnership, Affirm is available to customers in-store and on the Walmart website. Affirm has partnered with e-commerce platforms including Shopify, BigCommerce, and Zen-Cart. On November 18, 2020, Affirm filed with the Securities and Exchange Commission in preparation for an initial public offering. On December 12, 2020, it was reported that Affirm had postponed its IPO. On January 13, 2021, Affirm became listed on NASDAQ with symbol AFRM, raising about $1.2 billion in its IPO. By the next day, the price of shares had doubled, making Levchin's stake worth about $2.5 billion. In May 2021, Affirm acquired Returnly, a financial technology service company, for $300 million.
Learn more about Affirm
Size
1,300 employees
Market Cap
$2.5 billion
Industry
Net Income
-$97.6 million
Founded
2012
Revenue
$617.1 million
NASDAQ

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