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Senior Software Engineer, Backend (Affirm Card)
Skills & Technologies
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.
The Affirm Card Engineering team is looking for a passionate Senior Software Engineer to help build the tools and systems that we use to manage money movement, bank data integration & merchant data. Affirm Card is Affirm’s newest financial product that marries the functionality of a debit card with access to Affirm's buy now pay later financing options. Our ability to move money effectively is critical to our ability to reach new customers and improve financial lives. We work closely with experience, data science, product, and a wide range of engineering teams to both leverage existing systems and build new systems.
This role requires a high level of technical capability, strong cross functional communication, and a creative mindset. Our work needs to be correct, scalable, and extensible. Our job is to have an industry leading money movement system to empower our product.
Affirm is experiencing explosive growth with millions of customers across thousands of merchants in-store and online, and your contributions will be a key enabler of that growth. Come join us as we build a beloved, lasting financial services brand predicated on honesty and trust. It’s going to be an amazing ride!
What you'll do
Drive planning and prioritization of projects based on product, technical, and business goals by leveraging relevant resources and data.
Work cross functionally with colleagues in Experience, Accounting, Product, and Analytics teams to set and execute our money movement strategy for the Debit card
Build APIs and data models to work within micro-service and event-driven architectures
Take an active role in mentoring junior engineers, and the processes that support team growth and efficiency
What we look for
4+ years of experience as a software engineer
A strong understanding of distributed sys
Company & Role Analysis
JobSeeker+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.
£45,000 – £60,000 (Glassdoor, Levels.fyi, 2025)
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