We use our proprietary resume database, various extensions, and tools, as well as platforms like LinkedIn, Habr, Head Hunter, AngelList, GitHub, Kaggle, DOU, jooble, Meetup, Slack, StackOverflow, AmazingHiring, awwwards, Coderwall, Behance, VK, Facebook, Dribbble, djinni, Remotive, VC, Medium, Quora, CodePen, Indeed, Boolean search techniques, HackerRank, Hikido, Topcoder, Habr Career, Glassdoor, Kununu, Join, Xing, plus niche communities, personal connections, business events, and meetup