MobileAround since 2015
Expo
Also written as EAS, Expo Application Services
A toolchain around React Native that handles builds, updates and native modules, so teams can ship without managing Xcode and Android Studio directly.
Think of it like
A managed kitchen: you cook, someone else maintains the equipment.
Junior or senior?
Junior sounds like
Built inside Expo's defaults.
Senior sounds like
Knows where it constrains you and what ejecting or a custom dev client actually costs.
Ask them
“Did you ever hit Expo's limits? What did you do?”