Job Information Location: Lisbon, Portugal – on‐site at Jobio or remote within Portugal. Remote from other countries depends on your current location and project. Posting date: 22.05.2026 Job reference: 1c122d2c329908580715e7f791670c1f Responsibilities Build high‐quality, scalable mobile applications using Kotlin and modern frameworks like Jetpack Compose. Design and implement robust architectures (e.g., MVVM) to ensure maintainable and extensible solutions. Deliver smooth, intuitive user experiences through thoughtful UX patterns and fluid visual interactions. Write clean, testable code and maintain strong unit and UI test coverage to ensure reliability. Take full ownership of features from development through deployment and ongoing maintenance. Collaborate closely with clients and cross‐functional teams to deliver technically feasible, high‐impact solutions. Contribute to architectural and design discussions, shaping effective technical decisions. Proactively identify, diagnose, and resolve production issues to maintain system stability. Apply best practices such as test‐driven development, continuous delivery, and performance monitoring. Work autonomously while staying aligned with team goals, bringing a self‐driven mindset and attention to detail. Qualifications Proficient in Kotlin, with exposure to Kotlin Multiplatform. Experience building declarative UIs with Jetpack Compose (including Compose Multiplatform where applicable). Strong understanding of asynchronous programming using Coroutines (or RxJava). Solid grasp of software architecture patterns such as MVVM. Experience with unit and UI testing practices and tools. Knowledge of service‐oriented architectures, design patterns, and core data structures. Experience working in cross‐functional, feature‐focused teams. Comfortable collaborating with clients to refine and validate technical requirements. Familiar with test‐driven development and continuous delivery practices. Awareness of performance and operational considerations in application development. Benefits Health insurance Flexible working hours Open holidays – take the time you need for yourself Profit distribution for everyone Annual Mindera trip, sports, and sharing groups Training & conferences – create your own training plan Child care vouchers Choice of laptop and peripherals that suit your needs Hotspot with unlimited usage (Porto) for work or personal use Wide range of snacks at our offices in Porto, Aveiro, and Coimbra #J-18808-Ljbffr