Android Engineer (Kotlin Developer)

Job Description

We’re looking for an Android engineer who is comfortable owning features end-to-end and making pragmatic technical decisions. This role is hands-on: you’ll be building and maintaining production-grade Android applications using Kotlin, working closely with product, design, and backend teams. The codebase is actively evolving, so expect to balance shipping features with improving architecture and code quality.

Responsibilities

• Design, build, and maintain Android applications written in Kotlin
• Translate product requirements into scalable, testable, and maintainable solutions
• Own features from initial concept through release and post-launch support
• Write clean, idiomatic Kotlin with a focus on readability and long-term maintainability
• Work with modern Android architecture patterns (MVVM, MVI, or similar)
• Integrate RESTful APIs and handle asynchronous data flows
• Collaborate with backend engineers to define and evolve API contracts
• Ensure app performance, responsiveness, and stability across a range of devices
• Identify bottlenecks and bugs, and implement fixes with minimal supervision
• Contribute to code reviews, technical discussions, and architectural decisions
• Continuously improve code quality, tooling, and development processes

Requirements

• Strong experience building Android applications in Kotlin
• Solid understanding of Android SDK, app lifecycle, and common pitfalls
• Experience with modern Android development tools and libraries (e.g., Jetpack components, Coroutines, Flow)
• Familiarity with dependency injection (e.g., Hilt, Dagger)
• Experience consuming and designing REST APIs
• Good understanding of threading, memory management, and performance optimization on Android
• Experience writing unit and instrumentation tests
• Comfortable working with Git in a collaborative environment
• English level: Fluent
• All candidates must be based in Brazil

Nice to have:

• Experience with Jetpack Compose in production
• Familiarity with modularized architectures
• Experience with CI/CD pipelines for Android
• Exposure to Kotlin Multiplatform
• Understanding of offline-first architectures and caching strategies