HackerRank - HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.
Educative.io - Interactive courses for developers by developers
iMocha - Make intelligent talent decisions.
React Jam - Build a game in 10 days using React, learn and win prizes!
Codility - Codility provides a SaaS platform with advanced validation, security and protection features to evaluate the skills of software engineers.
elai.io - AI-based solution that allows users to generate videos with a digital presenter from text