coding-tests
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Glider AI Bet the Résumé Was Broken. Then AI Made It Worse.
The hiring platform began by testing what candidates could actually do. Six years, a $10 million Series A and a Findem acquisition later, it is selling something more urgent: proof that the candidate on screen is real.
Vivek Ravisankar
Vivek Ravisankar is the co-founder and CEO of HackerRank, the technical hiring platform he started in 2012 after leaving a developer job at Amazon. Frustrated by the hours engineers lost to unstructured interviews, he and co-founder Hari Karunanidhi built a way to measure programming skill directly. After several pivots and three tries at Y Combinator, HackerRank grew into a platform used by thousands of companies and millions of developers. Ravisankar's stated mission is to build a meritocracy in hiring, where a developer's skills matter more than their school, geography, or resume brands.
Codility
Codility is a B2B SaaS platform for technical hiring that lets enterprises assess software engineers' real-world coding skills remotely and at scale. Founded in 2009 and bootstrapped for a decade before raising a $22M Series A in 2020, it offers automated coding assessments, live technical interviews and skills-intelligence tools used by teams at companies including GitHub, Tesla, SAP and Barclays. It is also known publicly for its free algorithm 'Lessons' that developers use to practice for interviews.
HackerEarth
HackerEarth is a developer-assessment and technical-hiring platform that helps companies screen, interview, and hire software engineers using automated coding tests, live coding interviews, and AI-driven interviewers. Founded in 2012 by IIT Roorkee alumni Sachin Gupta and Vivek Prakash, it pairs enterprise recruiting software with one of the largest developer communities in the world, built through years of hackathons and programming contests. Today it serves hundreds of enterprise customers and is repositioning around AI-powered interviewing and evaluation.
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.