Senior Software Engineer, Backend (Partner Merchant Interface)

Affirm · IT

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Full Time$173,000 - $255,000Posted Sep 9, 2026

Source: Affirm

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Specific countries

Limited to: United States — no hybrid days in this listing.

Not open from Hungary

This role’s source listing does not include Hungary as an eligible location.

Category
IT
Employment type
Full Time
Experience level
Senior
Job salary
$173,000 - $255,000

How this role compares to the IT market

Across all remote IT roles on RemoteJobSearch. Refreshed every 30 minutes.

Pay, compared

216 of 844 IT roles publish a salary

This role pays 14% more than a typical remote IT role.

This role$214,000 / year
Typical IT role$187,500 / year

Median of published salaries. Full reported spread in this market: $19,800–$500,000, outliers included.

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Original employer: AffirmSource ATS: AffirmJob status: Active

Affirm is hiring a Senior Backend Engineer to develop partner and merchant integration APIs. The role is fully remote within the United States.

As a key member of the Partner Merchant Interfaces team, you will design and maintain scalable backend services that power major partnerships such as Amazon and Stripe. You will balance system reliability with feature development speed while working in a collaborative, distributed engineering environment.

Why You’ll Love This Role

Remote within the United States
Salary range $173,000 - $255,000
Senior level backend role
FinTech industry focus
Comprehensive subsidized health benefits

What You’ll Bring

Previous work or internship experience designing, developing and launching backend systems at scale
Proficient in Python or Kotlin
Familiarity with distributed systems and technologies like AWS, MySQL and Kubernetes
Ability to navigate large code bases and provide feedback through code reviews
Bachelor’s degree in a related field or equivalent practical experience

What You’ll Get

100% Subsidized medical coverage for employee and dependents
Dental and vision coverage
Flexible Spending Wallets for tech, food and lifestyle needs
Employee stock purchase plan
Competitive vacation and holiday schedules

About the Company

Affirm is a financial technology company focused on providing transparent credit solutions for consumers. They aim to make purchasing more flexible by offering buy-now-pay-later services without hidden fees.

Listing checked for remote eligibility · Posted Sep 9, 2026 · AffirmApply
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