Available to hire
I’m a Senior Android Engineer passionate about building secure, accessible, and high-performance mobile apps. I focus on Kotlin-first development, MVVM, MVI, Clean Architecture, Hilt, and TDD to deliver robust features with maintainable code.
With 6+ years of international experience across fintech, healthtech, and corporate environments, I thrive in 100% remote, cross-cultural teams and enjoy turning complex problems into scalable solutions. I’m Swiss by nationality and fully authorized to work in Switzerland and across the EU/EEA.
Language
English
Fluent
Spanish; Castilian
Fluent
French
Fluent
Work Experience
Senior Android Engineer at Pinterest (via BairesDev)
May 1, 2023 - PresentMaintained and scaled a globally distributed Android app used by hundreds of millions of users. Migrated legacy Java components to Kotlin with coroutines, Flow, and null safety. Implemented Jetpack Compose for modern UI, and applied MVVM, Clean Architecture, Repository Pattern, and Hilt for modular, testable code. Introduced TDD with JUnit, MockK, and fake repositories to reduce regressions. Used Firebase Crashlytics and LeakCanary for production monitoring. Collaborated with cross-functional teams in CI/CD-enabled environments.
Android Developer at WorldRemit
January 1, 2019 - December 31, 2019Implemented BiometricPrompt API and FingerprintManagerCompat for secure authentication. Migrated Java codebase to Kotlin with coroutines and multi-platform support. Applied certificate pinning with Retrofit/OkHttp. Architected app with MVVM and lifecycle-aware components. Managed background tasks with WorkManager for secure log syncing.
Android Developer at Push Doctor
November 1, 2017 - December 31, 2018Integrated FaceDetector SDK for real-time facial recognition in a telehealth application. Added Intercom SDK for chatbots and live patient support. Conducted integration and behavioral testing (Robolectric, Robotium). Worked in an Agile environment with sprint planning, demos, and retrospectives.
Freelance Android Developer at Various (2019 – 2023)
January 1, 2019 - January 1, 2023Pet Adoption App (Flutter/Dart) — Firebase, FCM, Authentication, real-time Firestore. Fiverr Clone (KMM) — cross-platform Android/iOS, Ktor, MySQL, JWT secure payments. BlaBlaCar Clone (Flutter/Dart) — domain-driven design, real-time streams, Google Auth.
Education
BSc (Hons) Computer Science at Goldsmiths, University of London
January 1, 2015 - January 1, 2019Coursework in Accounting, Administration, Marketing Fundamentals at École de Commerce Andres Chavannes
January 1, 2005 - January 1, 2008Qualifications
Industry Experience
Financial Services, Healthcare, Media & Entertainment, Software & Internet
Hire a App Developer
We have the best app developer experts on Twine. Hire a app developer in Fribourg today.