Android Engineer (Kotlin and Java)

About the role

We are looking for an experienced Android Engineer to work remotely on an hourly contract basis. You will review AI‑generated Android code, evaluate technical explanations, and create high‑quality reference implementations that help improve AI models used by developers worldwide.

Key responsibilities

• Develop detailed prompts and reference answers across Android topics for AI training.
• Assess AI‑generated solutions for correctness, security, performance, and adherence to best practices.
• Identify and document issues in Jetpack Compose/UI, concurrency, threading, memory, app lifecycle, networking, persistence, and build/release processes.
• Fact‑check technical information and write clear, step‑by‑step explanations.
• Rate and compare multiple AI responses to guide future improvements.

Required profile

• Bachelor’s degree in Computer Science, Software Engineering, or equivalent practical experience.
• 4+ years of professional experience building production Android applications using Kotlin and preferably Java.
• Deep understanding of Android fundamentals, modern UI frameworks, and concurrency models.

Required skills

• Kotlin (null‑safety, coroutines, flows, generics)
• Java
• Jetpack Compose and/or Android Views
• Coroutines, Flow, threading best practices
• MVVM, Clean Architecture, dependency injection (Hilt/Dagger/Koin)
• Retrofit, OkHttp, serialization, caching, offline strategies
• Room, SQLite, DataStore
• JUnit, instrumentation tests, Compose UI tests, Espresso