AI can polish a résumé in seconds, but it cannot make the underlying candidate better at the job. Criteria is betting that structured tests, interviews and a trail of 6 billion data points can tell employers what the application no longer does.

A childhood spent watching one person search for the right work became a decade-long attempt to make hiring less like instinct and more like a learning system.
Most hiring software records decisions and stops there. Journeyfront follows employees onto the job, then uses retention and performance data to make the next hiring class less of a guess.
CodeSignal is a San Francisco-based skills platform that uses AI-driven simulations to assess technical and soft-skills talent and to train workers through Cosmo, its conversational AI tutor. Founded in 2015 as CodeFights and rebranded in 2018, it now powers technical hiring and upskilling at companies like Meta, Netflix, Zoom, Robinhood and Capital One.