Senior Android SDK Engineer

Location: Remote
Employment Type: Full-Time / Contract

Role Summary

We are looking for a Senior Android SDK Engineer to own and evolve the Android SDK written in Java, enabling internal and partner applications to integrate reliably with our REST APIs.

This is a platform / SDK engineering role focused on stability, performance, backward compatibility, and developer experience. You will work closely with Backend, iOS, and Web teams to ensure consistent behavior across platforms.

Responsibilities

• Design, develop, and maintain the Android SDK using Java.
  • Build SDK APIs that wrap company REST services.
  • Ensure SDK stability, performance optimization, memory efficiency, and safe behavior within host applications.
  • Own SDK versioning, releases, and backward compatibility.
  • Build and publish SDK releases as Maven dependencies hosted in JFrog Artifactory.
  • Write and maintain unit and integration tests using JUnit and Mockito.
  • Maintain SDK documentation and developer integration guides.
  • Collaborate with Backend, iOS, and React engineers to align API contracts and client behavior.

Requirements

• 5+ years of Android development experience with strong proficiency in Java.
  • Proven experience building and maintaining Android SDKs, libraries, or reusable components.
  • Strong experience consuming REST APIs, including authentication, retries, and error handling.
  • Experience with Maven/Gradle dependency management and publishing libraries.
  • Experience working with JFrog Artifactory.
  • Hands-on experience with JUnit and Mockito.
  • Proficiency with Git and CI/CD pipelines.

Nice to Have

• Kotlin experience and interest in Android modernization.
  • Experience with OkHttp and/or Retrofit.
  • SDK-level logging, diagnostics, or error modeling experience.
  • ProGuard / R8 configuration for SDK consumers.
  • Experience collaborating across iOS, React, or React Native platforms.