Junior Mobile Developer (Kotlin)

Alpen Cloud employs 620 people across engineering hubs in Berlin and three other locations, building ERP software for mid-market manufacturers.

Our team is growing and we are hiring a Junior Mobile Developer (Kotlin). Our field staff rely on the app offline for most of the day. This role will help make that experience faster and more reliable. Our team is spread across 17 countries. Headquarters is in Berlin. You will join as an independent contractor on a long-term agreement. Payment is monthly in USD. Core hours are 10:00 to 15:00 CET.

What you'll be doing

• Implement offline storage and sync using Core Data, Room or SQLite.
• Review mobile pull requests and share platform knowledge with the team.
• Set up and maintain CI builds in Bitrise, Fastlane or GitHub Actions.
• Support larger text sizes, VoiceOver and TalkBack.
• Manage App Store Connect and Google Play Console releases, including phased rollouts.
• Profile memory, battery and startup time with Instruments and Android Studio Profiler.

What you'll need

• 1+ years of professional iOS or Android development.
• Shipped at least one app to the App Store or Google Play that is still in use.
• Understanding of mobile architecture patterns such as MVVM or Clean Architecture.
• Knowledge of Apple Human Interface Guidelines and Material Design.
• Comfort working with REST APIs and JSON.

Perks and benefits

Pay: $2,700 to $3,100 per month

• Annual rate review.
• Monthly payments via wire transfer or Wise.

Please submit your CV in English.

Duration: 3 months. Start: Flexible.

Demo job created on 11jobs for testing and demonstrations. It is not an actual opening at Alpen Cloud GmbH.