J
Juan Jesús Carro Olmedo
$50/hr
or
$85,000/yr
Active 11 hours ago
Android Engineer
Android Developer
Available for hire
Years of
experience
5+ years
Available
for
Full-time, Contract, Freelance
I'm an Android Engineer with 5+ years of experience building production Android apps using Kotlin and modern Android technologies.
I've worked on streaming, e-commerce, and digital media products, building new features, improving performance, fixing production issues, and shipping releases. I enjoy working closely with product, design, and backend teams to build apps that people enjoy using.
One of the things I enjoy most about Android development is understanding the product behind the code. I like discussing features, thinking about the user experience, and finding simple solutions to real problems.
I'm open to remote opportunities with international product teams, and I'm also open to relocating for the right opportunity.
Employment History
Senior Android Developer at
DIVERGENTE
Current
2025
-
Now
Developing Android and Android TV applications from the ground up using Kotlin and Jetpack Compose. Working closely with product, design, backend, and iOS teams to shape new features from the early stages, discussing UX, refining ideas, and turning them into production-ready experiences. My work also includes video playback, Google IMA Ads integration, analytics, performance improvements, production releases, and monitoring applications with Firebase Crashlytics.
Android Developer at
UST
2024
-
2025
- Developed new features in Kotlin for the sports news app Relevo, working in a startup-like environment. Followed Clean Architecture with Kotlin, MVVM, Hilt, and Retrofit.
- Planned, tracked, and estimated tasks, reporting directly to the Product Manager.
- Implemented all functionality related to the 2024 Olympics, including main navigation, API conceptualization, new screens, components, and feature flags.
- Conducted code reviews on Bitbucket and performed functionality testing.
- Enhanced performance and scalability by refactoring core components.
Android Developer at
knowmad mood
2023
-
2023
- Developed new features for the Android app of the spanish digital newspaper El Confidencial, with Kotlin and MVVM.
- Collaborated closely with cross-functional teams like UX, Web, and Backend to plan and execute tasks.
- Managed app releases directly on Google Play.
Tech Stach: Kotlin, Java, MVVM, Hilt, Bitrise, Retrofit, Coroutines
Android Developer at
Napptilus Tech Labs
2023
-
2024
- Developed new features for the Zara App, as part of the team responsible for connecting physical stores with e-commerce.
- Collaborated closely with cross-functional teams (iOS, QA, Analytics, Product) to plan, conceptualize, and estimate tasks,
- Contributed to code reviews within the team and as a Code Owner.
- Unit Test with Mockito & Junit.
Intern + Jr Android Developer at
Babel
2021
-
2023
Education
Higher National Diploma in Computing (Applications Development) at
Cev, Escuela Superior de Comunicación, Imagen y Sonido
2019
-
2021