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How thredUp uses Harness

As published on harness.io, August 2026. Captured by usedby on Oct 7, 2026.

What happened

thredUp uses Harness feature management (formerly Split) for phased feature rollouts, real-time personalization of Black Friday promotions, backend A/B testing, and hidden production features for internal QA.

Summary written by usedby from the source page, in English. The figures are those of Harness and thredUp, not ours.

Personalize Offers in Real Time: During Black Friday, Split enabled thredUP to dynamically serve unique promotions and experiences based on customer attributes and machine-learning scores.

From the page. harness.io, captured Oct 7, 2026

If we built this in-house, it would have required a whole team. Split had everything we needed out of the box—developer-friendly, intuitive UI, and robust data capabilities.

Dan DeMeyere, VP Engineering, thredUp. Source, captured Oct 7, 2026

What the story claims, and what we checked

We compared the story with its live page on Oct 7, 2026.

  • The passage quoted aboveCheckedCopied word for word from the page, near the name of thredUp.
  • The publication dateCheckedRead from the page’s own metadata, never guessed.
  • thredUp uses HarnessCheckedConfirmed line. Latest check across sources: Oct 7, 2026.
  • The result itselfNot checkedWe quote it; we did not measure it.

Same company, same tool or same industry.

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