Maciej Brencz's main area of expertise is Ruby , and is also an expert on Node.js and Python . Maciej Brencz is recognized as Ruby Top-10Node.js Top-10, and Python Top-10 . Owner of phantomas (2.2K stars) . , Maciej Brencz is ranked as #9,836 globally .
Additional areas of expertise: Java, http-client, and promise