Senior Android Engineer: Kotlin, Jetpack & Apps

Ethereum Technologies LLC; Seattle (WA); On-site; USD 120,000 - 150,000; Full time

Job summary

Ethereum Technologies in Seattle is seeking an experienced Android Developer to design, build, test, and maintain high-quality mobile applications for the Android platform using Kotlin and Java, Android SDK, and Jetpack components.

You will implement features with Jetpack Compose, integrate RESTful services and Firebase, ensure performance and security, participate in code reviews, and collaborate with product managers, UI/UX designers, backend engineers, and QA to deliver outstanding user

Qualifications

• 5+ years of experience in Android application development.
• Strong hands-on experience with Kotlin and Java.
• Proven experience developing and publishing native Android applications.
• Experience with Jetpack Compose, Android Jetpack, and modern architecture.
• API integration, mobile security, and data persistence knowledge.
• Agile/Scrum methodologies familiarity.

Responsibilities

• Design, develop, test, and maintain native Android apps.
• Implement features using Kotlin/Java and Jetpack libraries.
• Integrate REST APIs and Firebase services.
• Ensure performance, memory management, and device compatibility.
• Collaborate with product managers, UI/UX designers, backend developers, and QA engineers.
• Write unit and UI tests; participate in code reviews.

Skills

Kotlin

Java

Android SDK

Jetpack Compose

MVVM/MVP/Clean Architecture

REST API

Coroutines/Flow

Room/SQLite/DataStore

Firebase (FCM)

DI (Hilt/Dagger/Koin)

Unit/UI Testing

CI/CD

Education

Bachelor's degree in CS/IT/SE

Master's degree in CS/Mobile Development (preferred)

Tools

Android Studio

Git/GitHub/Bitbucket

Jenkins

Google Play Console

Job description

Ethereum Technologies in Seattle is seeking an experienced Android Developer to design, build, test, and maintain high-quality mobile applications for the Android platform using Kotlin and Java, Android SDK, and Jetpack components.

You will implement features with Jetpack Compose, integrate RESTful services and Firebase, ensure performance and security, participate in code reviews, and collaborate with product managers, UI/UX designers, backend engineers, and QA to deliver outstanding user