Job Summary: Joinin is seeking a Mid-level Android Developer to develop and enhance Android applications, ensuring technical quality and an excellent user experience. Key Highlights: 1. Develop native features using Kotlin 2. Collaborate with design, product, and backend teams 3. Ensure best practices in coding, testing, and performance Joinin is hiring: **Mid-level Android Developer** **Who are we?** Joinin is Brazil’s largest digital HR and corporate communication platform. Our purpose is to strengthen the connection between companies and employees, making technology accessible to everyone. With the “App da Firma”, we offer a comprehensive and human-centered people management solution, simplifying internal communication and transforming how companies engage with their teams. **What do we expect from you?** We are looking for someone responsible for developing and enhancing our Android applications, ensuring technical quality, an excellent user experience, and alignment with product architecture. **This person will:** * Develop native features using Kotlin * Collaborate with design, product, and backend teams to build scalable solutions * Ensure best practices in coding, testing, and performance * Participate in technical refinements and architectural decisions * Contribute to the continuous evolution of the app and codebase * Identify opportunities for technical and experiential improvement We seek someone with a strong sense of responsibility, attention to quality, and the ability to balance autonomy with team collaboration. **What qualifications should you have?** * Experience in native Android development using **Kotlin** * Knowledge of mobile architecture (e.g., MVVM) * Experience consuming REST APIs * Familiarity with version control (Git) * Experience with UI and performance best practices * Experience publishing and maintaining apps on the Play Store (a plus)