Cosmo

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Shuai Ke Went Back Into the Rain

After helping turn a question bank into a major Chinese education platform, Shuai Ke chose the discomfort of starting again. His second act stretches from live American classrooms to an AI writing companion - and returns to a problem he has carried since school.

shuai-ke · kenny-shuaiRead →

Company

Saas · Ai · Enterprise

CodeSignal

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.

technical-interviews · skills-assessmentRead →