Foundler - Online hackathon weekends. Attend every other week.
hackattic - No nonsense, real world programming challenges
CoFoundersLab - Meet 250,000+ entrepreneurs online
HackerRank - HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.
HackHub - Host tech events and hackathons with ease 👨💻🛠
Takehome - Effective and humane coding challenges for candidates