Mergify - Stop merging your pull requests manually
hackattic - No nonsense, real world programming challenges
Codacy - Automatically reviews code style, security, duplication, complexity, and coverage on every change while tracking code quality throughout your sprints.
HackerRank - HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.
TeaCode - Write your code the smart way. Super fast 🚀
Takehome - Effective and humane coding challenges for candidates