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Affirm Backend Software Engineer Salaries

Backend Software Engineer compensation in United States at Affirm ranges from $183K per year for L4 to $319K per year for L7. The median yearly compensation in United States package totals $265K. View the base salary, shares, and bonus breakdowns for Affirm's total compensation packages. Last updated: 1/25/2026

Average Level
Add CompCompare Levels
Level Name
Total
Base
Stock ()
Bonus
L4
Software Engineer 1(Entry Level)
$183K
$133K
$38.2K
$12.4K
L5
Software Engineer 2
$244K
$160K
$81.7K
$1.8K
L6
Senior Software Engineer
$288K
$196K
$90.5K
$1.3K
L7
Staff Software Engineer
$319K
$223K
$96.3K
$0
View 2 More Levels
Add CompCompare Levels
+$24K
+$58K
+$89K
+$20K
+$35K
+$22K
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Vesting Schedule

50%

YR 1

50%

YR 2

Stock Type
RSU

At Affirm, RSUs are subject to a 2-year vesting schedule:

  • 50% vests in the 1st-YR (12.50% quarterly)

  • 50% vests in the 2nd-YR (12.50% quarterly)

The alternate vesting schedule is for the sign-on equity.

25%

YR 1

25%

YR 2

25%

YR 3

25%

YR 4

Stock Type
RSU

At Affirm, RSUs are subject to a 4-year vesting schedule:

  • 25% vests in the 1st-YR (25.00% annually)

  • 25% vests in the 2nd-YR (2.08% monthly)

  • 25% vests in the 3rd-YR (2.08% monthly)

  • 25% vests in the 4th-YR (2.08% monthly)

The alternate vesting schedule is for the sign-on equity.

25%

YR 1

25%

YR 2

25%

YR 3

25%

YR 4

Stock Type
RSU

At Affirm, RSUs are subject to a 4-year vesting schedule:

  • 25% vests in the 1st-YR (2.08% monthly)

  • 25% vests in the 2nd-YR (2.08% monthly)

  • 25% vests in the 3rd-YR (2.08% monthly)

  • 25% vests in the 4th-YR (2.08% monthly)

The alternate vesting schedule is for the sign-on equity.



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FAQ

The highest paying salary package reported for a Backend Software Engineer at Affirm in United States sits at a yearly total compensation of $393,000. This includes base salary as well as any potential stock compensation and bonuses.
The median yearly total compensation reported at Affirm for the Backend Software Engineer role in United States is $250,000.

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