Software Engineer II, Backend (Infrastructure Platform)

· Remote

Location

Remote

Type

Full Time

Job Description

AffirmJobs
Software Engineer II Backend (Infrastructure Platform)

Software Engineer II Backend (Infrastructure Platform)

Posted Yesterday
Easy Apply
Hiring Remotely in United States
Remote
146K-225K Annually
Junior
Big Data • Fintech • Mobile • Payments • Financial Services
We create honest financial products that improve lives. Ready to make a difference?
The Role
Design and build a centralized reliability platform and developer-facing APIs. Implement AI agents for incident triage log/trace summarization and recommended actions. Own projects end-to-end and collaborate with product infra data and SRE teams.
Summary Generated by Built In

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.

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

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 Affirm will consider for employment qualified applicants with arrest and conviction records.

By clicking "Submit Application" you acknowledge that you have read Affirm'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.

Skills Required

  • Bachelor's degree in a related field or equivalent practical experience
  • 1.5+ years of experience as a software engineer
  • Strong proficiency in Python
  • Experience architecting data-intensive applications and robust APIs
  • Hands-on experience with AI-assisted development tools (e.g. Cursor Claude Copilot-like)
  • Practical use of LLMs or AI frameworks to enhance automation and guidance with guardrails and citations

What the Team is Saying

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Jerry
Adam
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Affirm Compensation & Benefits Highlights

  • Affordable BenefitsHealthcare coverage includes $0 employee medical premiums with robust dental vision and mental‑health programs that minimize out‑of‑pocket costs. Careers materials also describe expanded comprehensive benefits that reinforce affordability.
  • Parental & Family SupportPaid parental leave provides 18 weeks for both birth and non‑birth parents plus a four‑week return‑to‑work transition at full base pay. Family‑building support is further enabled through dedicated spending wallets and related programs.
  • Leave & Time Off BreadthTime away is structured through generous/flexible PTO and company‑wide Away Days published annually with added Health Days and Life Happens time for unexpected needs. These collective recharge days complement day‑to‑day flexibility.

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The Company
HQ: San Francisco CA
2200 Employees
Year Founded: 2012

What We Do

At Affirm we help people say yes to the things that matter with flexible transparent ways to pay over time. No hidden fees no compound interest and no fine print—just a smarter way to spend.

Why Work With Us

Who is an Affirmer? /noun/ Someone who believes finance shouldn’t be complicated. We come from a diverse set of backgrounds and we’re driven by the desire to improve lives through honest financial products. We define success by challenging one another to bring our best ideas to every single project—and we have fun while doing it.

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Affirm Offices

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Employees work remotely.

Affirm is a remote-first company! Our employees can work anywhere in the U.S. but if an office is more your style we have office locations in San Francisco Chicago New York City and Pittsburgh.

Typical time on-site:
HQSan Francisco CA
Spain
United Kingdom
Chicago IL
New York NY
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Warsaw PL
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Date Posted

06/24/2026

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