Staff Mobile Engineer — Kotlin Multiplatform & AI UI

webAI; Austin, Northern (TX, KY); Hybrid; USD 120,000 - 190,000; Full time

Benefits offered by this job

Competitive salary

Health, dental, vision benefits

401(k) match

Equity options

Health & Wellness stipend

Education support

Parity leave / parental leave

Job summary

webAI is developing a flagship cross‑platform mobile app using Kotlin Multiplatform and Compose Multiplatform, with SwiftUI on iOS. The ideal candidate has a proven track record delivering native mobile apps and a passion for AI integration.

You will work on shared KMP modules, UI, performance tuning, and mentoring teammates while collaborating across the stack to ship high‑quality code.

Qualifications

• 8+ years of mobile development with shipped production apps on Android, iOS, or both.
• Strong Kotlin skills including coroutines and Flows.
• Demonstrated interest in AI engineering.
• Solid experience with mobile tooling and app stores.
• Strong mobile product instincts.

Responsibilities

• Shared Kotlin Multiplatform modules writing business logic and repositories.
• Compose Multiplatform UI and Native SwiftUI to consume shared code.
• On-device AI integration for AI frameworks both on-device and remotely.
• Profile and harden app performance on real devices; troubleshoot hard, technical bugs.
• Code review and collaboration; mentor teammates and improve code quality.

Skills

Kotlin

Coroutines

Flows

AI interest

Mobile tooling

App stores

Mobile product instincts

Android

iOS

Tools

Rust UniFFI

C++

JavaScript

Jetpack Compose

SwiftUI

Kotlin Multiplatform

Job description

webAI is developing a flagship cross‑platform mobile app using Kotlin Multiplatform and Compose Multiplatform, with SwiftUI on iOS. The ideal candidate has a proven track record delivering native mobile apps and a passion for AI integration.

You will work on shared KMP modules, UI, performance tuning, and mentoring teammates while collaborating across the stack to ship high‑quality code.