Javier Espallargas
Senior Android Engineer at Veeva Systems
Zaragoza, Aragon, Spain
Summary
👤
Senior🎓
Top SchoolJavier Espallargas is a Senior Android Engineer based in Zaragoza with over a decade of professional experience building mobile applications across healthcare, telecom, and enterprise software. An Associate Android Developer (#61) certified by Google, he brings deep Kotlin expertise and a growing focus on Kotlin Multiplatform to deliver shared, maintainable code across Android and iOS. Javier has progressed through roles at Hiberus, everis, MicroHealth and Telefónica and currently shapes mobile solutions at Veeva Systems, blending product-minded engineering with hands-on implementation. He is comfortable navigating large codebases and regulatory domains, especially in health and enterprise contexts, and often pairs platform-level thinking with pragmatic delivery. A computer engineering graduate from Universidad de Zaragoza, he balances strong technical craft with practical cross-platform ambitions that aren’t obvious from job titles alone.
11 years of coding experience
9 years of employment as a software developer
Ingeniería, Computer Engineering, Ingeniería, Computer Engineering at Universidad de Zaragoza
English, Spanish
Stackoverflow
196reputation
31kreached
6answers
1question
Github Skills (80)
ktor10
jetpack10
kotlin-coroutines10
presentation-layer10
clean-architecture10
kotlin-multiplatform10
apollographql10
js10
swift10
kotlin-android10
jvm10
mvvm10
mvvm-architecture10
android10
sqldelight10
Programming languages (4)
Github contributions (5)
jarroyoesp/TDDWeatherApp
Nov 2018 - Jan 2019
Android App trying to apply TDD and using MVVM, Kotlin Coroutines
Contributions:17 commits, 69 pushes in 1 month
android-appkotlin-coroutinesmvvmtddandroid
jarroyoesp/ComposeMultiplatformApp
Oct 2022 - Jun 2026
Compose Multiplatform Sample (KMP) that serves as a comprehensive example demonstrating the integration of Compose Multiplatform, GraphQL data consumption, and SQLDelight for local data persistence.
Contributions:12 releases, 61 PRs, 139 pushes in 3 years 8 months
compose-multiplatformdata-persistencegraphqlsqldelightandroid
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