— Good command of English — Experience with React, Redux — Mobile development and React Native in particular, for iOS and/or Android — Familiarity with version control tools, especially Git — General knowledge of RESTful APIs, WebSockets, HTTP, TCP/IP

— GIS technology such as OpenLayers, OpenStreetMaps, ESRi ArcGIS, etc. — Automated testing tools for web applications, such as Jest and Selenium — Any experience with TypeScript, Python, Linux — Basic familiarity with graphic design tools (Gimp/Photoshop, Inkscape/Illustrator, etc.)