HackerRank

HackerRank is a technology company that provides a platform for evaluating and hiring software developers. It offers coding challenges, real-world assessments, and AI-powered tools to help organizations assess technical skills, conduct interviews, and upskill developers.

Founded as InterviewStreet Inc. by Vivek Ravisankar and Hari Karunanidhi, HackerRank is known for its competitive programming challenges and has been a significant player in the online coding community.