CodeSignal - CodeSignal is the leading assessment platform for technical hiring.

GitHub Codespaces - GItHub Codespaces is a hosted remote coding environment by GitHub based on Visual Studio Codespaces integrated directly for GitHub.

HackerRank - HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.

CloudShell - Cloud Shell is a free admin machine with browser-based command-line access for managing your infrastructure and applications on Google Cloud Platform.

LeetCode - Practice and level up your development skills and prepare for technical interviews.

CodeTasty - CodeTasty is a programming platform for developers in the cloud.