coding-challenges
(2)
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.
HackerRank
HackerRank is a technical skills platform that helps companies screen, interview, and hire developers based on what they can actually build rather than what their resume claims. Founded in 2009 by Vivek Ravisankar and Hari Karunanidhi, the company runs a two-sided model: a community where millions of developers practice coding challenges, and an enterprise product that lets 3,000+ companies - including a large share of the Fortune 100 - assess candidates with real-world coding tests, live pair-programming interviews, and, increasingly, AI-assisted evaluation and proctoring.