This document discusses the role of a web/mobile developer and provides an example of Hari Gopal's career journey in this role. It begins by outlining three core startup engineering skills including design, product management, and web/mobile development. It then profiles Hari, describing his interest in gaming from a young age and path from college to his current role as Engineering Lead at SV.CO. Key abilities for a web/mobile developer are listed, such as developing front-end and back-end systems, contributing to UX design, and understanding web deployment infrastructure. Hari's experience transitioning from a junior developer to technical architect at Mobme over six years is also summarized.