My 1st job is a part-time store assistant in a supermarket. My 2nd job is a full-time front-end programmer specializing in Android/iOS app development and 3rd-party API integration for websites. My 3rd job is a full-time full stack programmer involving Android/iOS/website development as well as backend API and database management. My 4th job is a contract staff in customer services having almost nothing to do with the IT industry. My 5th job is a contract assistant providing hardware and physical security support inside a data center. Right now I'm unemployed :) As for my technical expertise, while I don't have any yet, my primary interest in this field is mainly game development, especially with some experience on developing Active Time Battle systems.