Callstack is a group of open source enthusiasts with a mission to help developers and companies launch their products for everyone, on every platform, at the same time. We work with many companies all over the world, from small startups to big corporate clients. At Callstack, we believe in community. That's why we run workshops, meetups and organize React Native EU - first React Native conference in Europe. Many of our developers are contributors to popular libraries, including Mike and Satya being on the React Native core team.
G2i is talent platform for engineers by engineers focused on React, React Native, GraphQL, & Android/iOS. We provide on demand high-quality pre-vetted engineers and small teams of engineers that can integrate with your team full time. We love the React.js and React Native community and encourage our clients to use those frameworks. While our primary focus is on React/React Native, Node.js, GraphQL, and native Android/iOS, we also have engineers that are experienced with Ruby on Rails.
At Software Mansion, we firmly believe in the importance of our commitment to open-source products. Thousands of developers have already used our React Native modules while creating their products. We are always open to new opportunities, to use cutting-edge technology and tackle exciting challenges. Contribution in the development of Expo has been an excellent experience for all of us.