Senior Mobile Engineer | iOS & Android | Sydney or Brisbane | FTC | ASAP to 31 May 2027

Our client, a leading technology business, is building brand-new native iOS and Android apps for a customer portal experience. As Senior Mobile Engineer, you'll own the build end-to-end, from architecture through to app store release, working closely with an existing .NET/React web platform.

The prospect

This is a genuine greenfield build, not a maintenance role. You'll design how native mobile integrates with an established web product, deciding where to reuse existing capability and where native implementation is the right call, with real autonomy and no dedicated mobile team around you.

What you'll do

- Design and build native iOS (Swift/SwiftUI) and Android (Kotlin/Jetpack Compose) apps for a new customer portal
- Own the full release pipeline — App Store Connect, Google Play Console, certificates, provisioning, store submissions
- Integrate mobile apps with REST/GraphQL APIs, authentication flows, and shared backend services
- Implement WebView, in-app purchase, and native device integrations (camera, biometrics, secure storage)
- Set up and maintain CI/CD for mobile (Fastlane, Bitrise, or GitHub Actions)



and crash/analytics tooling
- Provide technical guidance to the squad on native vs. web-reuse trade-offs
- Document architecture and release process for handover at contract end

What we're looking for

- 5 years in mobile development, with production iOS and Android apps shipped
- Strong hands-on experience with Swift/SwiftUI and Kotlin/Jetpack Compose
- WebView expertise, JS bridges, native↔web messaging, session/token handling
- Experience with in-app purchases (StoreKit 2, Google Play Billing) and store compliance
- Proven solo, end-to-end delivery, comfortable owning mobile without a dedicated team
- Self-managing on timelines, with a track record of delivering to a fixed engagement

Why this role

- Rare greenfield build with genuine architectural ownership
- Full-stack visibility — direct collaboration with web, backend, product and design
- Adaptable working, home or Sydney/Brisbane offices, your call

Location & contract

Sydney or Brisbane preferred, with flexible working arrangements. Fixed-term contract until 31 May 2027.

Ready to build something from the ground up? Apply now.

📌 Android Developer (Queensland)
🏢 Just Digital People
📍 Queensland