HackerRank is a technology company that focuses on competitive programming challenges for both consumers and businesses. It is is a place where programmers from all over the world come together to solve problems in a wide range of Computer Science domains such as algorithms, machine learning, or artificial intelligence.

CodeFights is a San Francisco based technology startup on a mission to discover, develop and promote technical talent. It applies core game mechanics to transform practicing skills like programming into a fun and addictive game while helping talented people from all backgrounds to find amazing new opportunities.