Kevin R.
Senior Android Engineer
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Kevin R. is a seasoned Senior Android Engineer with over six years of international experience, specializing in developing secure, high-performance mobile applications. He is an expert in Kotlin and Jetpack Compose, employing Clean Architecture and Test-Driven Development (TDD) across various industries, including fintech, healthtech, and large-scale consumer platforms. Kevin has contributed to globally recognized apps like Pinterest, where he has played a key role in migrating legacy Java components to modern Kotlin and implemented MVVM structures for scalability and maintainability. His tenure at WorldRemit and Push Doctor highlights his expertise in fintech and telehealth apps, where he has introduced cutting-edge security and user interface solutions. As a Swiss and Chilean citizen, fully authorized to work across the EU/EEA, Kevin is available immediately for remote roles and boasts fluency in English, Spanish, and French.
Experience
Senior Android Engineer
Pinterest (via BairesDev) · 2023 — PresentMaintained and scaled a globally distributed Android application with hundreds of millions of active users. Migrated legacy Java components to modern Kotlin using Coroutines and Flow while enhancing null safety. Implemented Jetpack Compose for modern UI development across key features. Applied MVVM, Clean Architecture, Repository Pattern, and Hilt DI to ensure code is modular, testable, and maintainable. Introduced TDD practices through JUnit4, MockK, and Fake Repositories, leading to a decrease in regression bugs. Utilized Firebase Crashlytics and LeakCanary for monitoring and memory leak detection in real-time.Freelance Android Developer
Company not specified · 2019 — 2023Delivered three independent production-grade projects while continually enhancing technical skills. Developed a Pet Adoption App using Flutter and Dart, featuring Firebase Authentication, Firestore for real-time database management, and FCM for push notifications. Created a Fiverr Clone utilizing KMM for a cross-platform freelance marketplace backed by Ktor, MySQL, JWT authentication, and secure payment integration. Designed a BlaBlaCar Clone with Flutter/Dart, incorporating domain-driven design principles, real-time Firestore streams, Google Auth, and state management.Android Developer
WorldRemit · 2019 — 2019Worked on a fintech mobile application aimed at international money transfer. Implemented the BiometricPrompt API and FingerprintManagerCompat for secure biometric authentication. Migrated the legacy Java codebase to Kotlin, incorporating Coroutines and multiplatform support. Applied certificate pinning with Retrofit/OkHttp interceptors to enhance security against man-in-the-middle attacks. Architected the application using MVVM and lifecycle-aware components to enhance maintainability. Managed secure background tasks via WorkManager for encrypted log synchronization.Android Developer
Push Doctor · 2017 — 2018Contributed to a telehealth platform that facilitates remote GP consultations. Integrated the FaceDetector SDK to enable real-time facial recognition and liveness detection. Incorporated the Intercom SDK for AI-powered chatbots and live patient support. Architected the UI layer with the Data Binding Library for improved maintainability. Conducted integration and behavioral testing utilizing Robolectric and Robotium, and collaborated within an Agile Scrum environment emphasizing sprint planning and retrospectives.
Skills & Expertise
Education
- BSc (Hons) Computer ScienceGoldsmiths, University of London · 2015 — 2019
- Baccalaureat CommercialEcole de Commerce Andres Chavannes, Geneva, Switzerland · 2005 — 2008