Skills you need to be a mobile app developer
8 skills a hiring manager would actually test for, each with the level this role expects and what it is used for. Not a syllabus — the shape of the job.
Build my path to this roleUpskili checks what you can already do, then sequences only what is missing. No account needed.
What the role requires
Ordered by how much the job depends on it. The bar is the proficiency expected of a competent mobile app developer — not mastery, and not a passing acquaintance.
-
Kotlin
Essential
Primary language for native Android development.
Strong -
Swift
Essential
Primary language for native iOS development.
Strong -
Jetpack Compose
Essential
Modern declarative UI toolkit for Android.
Strong -
SwiftUI
Essential
Modern declarative UI framework for iOS.
Strong -
Git
Important
Version control and team collaboration on code.
Strong -
RESTful APIs
Important
Integrates mobile apps with backend services.
Strong -
CI/CD
Useful
Automates build, test, and deployment pipelines.
Working -
Firebase
Useful
Backend platform for analytics, crash reporting, and push notifications.
Working
An order worth learning it in
A list of ten skills is the same unhelpful answer a catalogue gives, just sorted. This is where to actually start.
Start here
Essential to the role, and reachable from a standing start. Everything below rests on these.
- Jetpack Compose
- SwiftUI
- Git
- RESTful APIs
Then this
The rest of what the role is assessed on. Harder, and it builds on the foundation above.
- Kotlin
- Swift
What sets you apart
Not what gets you hired, but what separates doing the job from being trusted with it.
- CI/CD
- Firebase
You almost certainly have some of this already.
That is the point of starting from the role rather than a course. Upskili checks what you can do, then builds a path across only the gap.
See my path to mobile app developer