Android Engineer (Kotlin and Java) Contract Remote NEW

Job Summary

SME Careers is seeking an Android Engineer working with Kotlin and Java for a fully remote, hourly paid contractor role. The engineer will review AI-generated Android code, mobile architectures, and technical explanations, and create strong reference implementations with step-by-step reasoning for complex engineering problems. Reviews will consider correctness, clarity, security, performance, reliability, and prompt adherence. The work includes finding issues in Jetpack Compose and other UI code, concurrency and threading, memory and performance, the application lifecycle, networking, persistence, and build or release practices; checking technical facts; writing explanations and model solutions that demonstrate best practice; and comparing AI responses for correctness and reasoning quality.

About the Company

SME Careers describes itself as a fast-growing AI data services company and a subsidiary of SuperAnnotate. It supplies training data to many of the world’s largest AI companies and foundation-model laboratories. This work is intended to improve leading AI models used by millions of developers.

Important

There is no immediate project for this role; however, qualified engineers may be among the first people contacted when relevant opportunities arise and can gain access to future projects through the expert network.

Key Responsibilities

• Develop detailed prompts across Android topics and write high-quality reference answers for AI training.
• Evaluate and rank AI responses to improve correctness, security, performance, and maintainability.
• Test outputs for inaccuracies and unsafe recommendations, and validate their reliability in real-world Android scenarios.

Your Profile

• A bachelor’s degree or higher in Computer Science, Software Engineering, or a closely related technical field, or equivalent practical experience.
• At least 4 years of professional experience building production Android applications, including Kotlin and, ideally, Java codebases.
• Expert Kotlin 1.6 or later skills, including null safety, coroutines and flows, sealed types, generics, and idiomatic patterns.
• Strong Android fundamentals covering the application lifecycle, Activities and Fragments, state restoration, background-execution limits, and permissions.
• Modern UI experience with Jetpack Compose and/or Views, including reasoning about recomposition, state hoisting, and UI performance.
• Expertise in coroutines, Flow, threading practices, cancellation, race-condition avoidance, and ANR prevention.
• Knowledge of MVVM, Clean Architecture concepts, dependency injection through Hilt, Dagger, or Koin, and modularisation.
• Experience with Retrofit and OkHttp, serialisation, caching, offline strategies, and Room, SQLite, or DataStore persistence.
• Experience with JUnit, instrumentation tests, Compose UI tests or Espresso, mocking, Gradle-based CI/CD, and Play Console workflows.
• Awareness of Keystore or EncryptedSharedPreferences, authentication flows, certificate pinning, privacy permissions, and sensitive-data handling.
• At least C1 written and spoken English, with clear technical writing and the ability to follow detailed English-language guidelines.
• AI data training, annotation, or evaluation of AI-generated technical content is a strong advantage.
• A highly detail-oriented, systematic approach to subtle problems in complex Android code.

How to apply

Apply online at: https://www.linkedin.com/jobs/view/4454310401/
Original listing source: LinkedIn / External recruitment platform.