Freelance Full-Stack Android Developer

Company Description SanukGo is a modern ride-hailing and courier platform that simplifies everyday transportation with secure, transparent, and convenient services. The platform enables users to book taxis and request courier deliveries in just a few steps, with clear fare estimates and multiple vehicle options. Real-time tracking, booking status updates, and ride history help riders and senders stay informed throughout their journeys. SanukGo is designed with an intuitive, user-friendly interface and a strong focus on privacy, collecting only essential data and managing personal information responsibly. Available on Google Play, SanukGo aims to provide a reliable, comfortable experience for both transportation and package delivery needs. Role Description We are looking for a freelance Full-Stack Android Developer to contribute to the continued development and technical growth of the SanukGo platform. The role involves developing and maintaining the Android application using Kotlin, while also contributing to backend services built with Java and Spring Boot. You will work on features related to ride booking, courier services, real-time location tracking, user and rider management, payments, notifications, maps, and API communication. Responsibilities also include improving application performance and usability, maintaining REST APIs and database integrations, troubleshooting production issues, and contributing to the scalability, security, and stability of the overall platform. Qualifications Strong experience with Android application development using Kotlin and/or JavaPractical knowledge of Android SDK and modern Android development practices, ideally including Jetpack Compose Experience with Java and Spring Boot for backend development Good understanding of REST APIs, client-server communication, authentication, and JSON-based data exchange Experience with relational databases such as MySQL or MariaDB Familiarity with GPS, maps, location services, or real-time data processing is highly beneficial Experience with Git, testing, debugging, code reviews, and performance optimization Understanding of scalable and secure application architecture Ability to develop clean, maintainable, and testable code Strong analytical and problem-solving skills with attention to user experience Ability to work independently while collaborating effectively with other contributors and stakeholders Experience with mobility, ride-hailing, logistics, delivery, or location-based applications is a strong advantage A degree in Computer Science, Software Engineering, or a related discipline is beneficial, although strong practical experience is equally valued The ideal candidate is enthusiastic about building real-world mobile products and interested in contributing to the continued technical evolution of a growing mobility platform.