Piotr Sroczkowski is a JavaScript developer, focused mainly on the backend with Node.js and NoSQL databases. He started amateur programming in 2009 and professional programming in 2014. In 2017, he graduated with an MSc in computer science from the Silesian University of Technology in Gliwice with a thesis entitled "Application of Heuristic Algorithms in Exploration of the Gene Mutations." As that title suggests, he's excited by heuristic algorithms and bioinformatics too. Beside his backend-focused job, in his free time, he’s interested in the web frontend with React and the mobile frontend with React Native. Moreover, one of his hobbies is data mining with JavaScript. Beside programming, he loves running long distances such as marathons and half-marathons.
Carlos Santana Roldan is a Senior Web Developer (frontend and backend); with more than 11 years of experience in the market. Currently he is working as a React Technical Lead in Disney ABC Television Group. He is the founder of Codejobs, one of the most popular Developers Communities in Latin America, training people in different web technologies such React, Node.js & JS (@codejobs).