Case Study: Flatiron Health achieves 4x faster hiring with Karat

How the Flatiron Health engineering team accelerated hiring by 4x

Flatiron Health, a company building technology to learn from real‑world cancer patient data, needed to scale engineering hiring rapidly after its acquisition by Roche—moving from hiring 20–30 engineers per year to a goal of 100 engineers by December 2019. With only about 50 engineers available to interview, Flatiron turned to Karat to help run structured, predictive technical interviews and scale its interviewer training program.

Karat’s Interview Engineers conducted first‑round technical interviews calibrated to Flatiron Health’s hiring bar while Karat Alignment Engineers and client success managers met regularly to refine questions, hiring yield, and candidate satisfaction. The partnership accelerated hiring by 4x—Flatiron hit its 100‑engineer target in June 2019 (six months early), reclaimed significant developer time for product work, and delivered a more predictive process with 91% of candidates rating their experience positive.

Flatiron Health

Catherine Miller

Sr. Director of Engineering