Android Developer – Enterprise System Integration

Pinecrest Systems

Freelance · Remote · Flexible hours

About the role

Pinecrest Systems is launching an integration project that links its billing platform, CRM, and internal APIs. We need an Android Developer to create a robust, modular app that securely communicates with these services and provides a smooth user experience.

Key responsibilities

• Design and implement Android modules for billing, CRM, and API interactions
• Write clean Kotlin and Java code following best practices
• Integrate RESTful services with authentication and error handling
• Collaborate with backend engineers to define data contracts
• Perform unit and UI testing to ensure reliability

Must-have skills

• Strong experience with Kotlin and Java on Android
• Proficiency in Retrofit/OkHttp for API calls
• Understanding of MVVM, Clean Architecture, and dependency injection
• Ability to work independently and meet deadlines

Nice to have

• Familiarity with billing SDKs or payment gateways
• Experience with CI/CD pipelines for Android
• Knowledge of secure storage and encryption on mobile