Affirm·Software Engineer

Affirm Software Engineer interview experience

No offer

Medium

Positive

United KingdomPosted Sep 2025 · Candidate report, summarized by Dataford

My interview felt fairly standard in terms of the overall structure, but the tools and constraints made it surprising.

The technical coding used a LeetCode-style prompt, and while that style isn’t what I expected to see, the bigger issue was the enforcement of HackerRank as the interface for both the coding test and the system design test.

I found the lack of a normal development setup really limiting. There was no debugger, no test suite, no whiteboard, and not even the usual scratchpad or editor features—so I felt restricted to essentially writing in a very basic way. That was a major disadvantage for me, especially for system design where I naturally think with diagrams and structured visuals.

I also

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Affirm Software Engineer interview experience (2025) | Dataford