JAlgoArena programming contest platform
JAlgoArena is a programming contest platform. You can host it on any infrastructure which runs Java & Node.JS.
JAlgoArena is a great alternative to portals like HackerRank and similar - when you are limited to only own infrastructure or you just don't want to pay for external service or help in organizing coding contest for your developers.
JAlgoArena allows user to see existing problems, create account and using it submit solutions for existing problems.
See more details on JAlgoArena Docs page.