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Luis Eduardo User

@luiseduardouser

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I build Android and Android TV streaming and fintech applications with Kotlin.

Brazil

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I'm building Android and Android TV streaming applications at FreeCast, supporting live TV and VOD for thousands of active users. I use ExoPlayer and VLC to improve playback stability and reduce buffering and crash rates.

Previously at BTG Pactual, I developed onboarding flows for Banking and Investments apps using Server-Driven UI. I also helped create a Single Sign-On SDK and built dynamic survey flows for native applications.

At Zup Innovation, I contributed to Beagle, an open-source Server-Driven UI framework that enabled backend-driven layout and logic updates. I build scalable mobile products with Kotlin, Jetpack Compose, Coroutines, and clean architecture.

Experience

Work history, roles, and key accomplishments

Current

Android Engineer

Current

FreeCast Inc

May 2023 - Present (3 years 4 months)

Developed and maintained Android and Android TV streaming applications supporting live TV and VOD content for thousands of active users. Implemented advanced media playback using ExoPlayer and VLC, improving playback stability and reducing buffering and crash rates.

Kotlin Jetpack Compose ExoPlayer VLC REST APIs Android TV Agile Code Review

Android Developer

BTG Pactual

Sep 2021 - May 2023 (1 year 8 months)

Developed core onboarding flows for BTG Banking and BTG Investments apps using Server-Driven UI concepts. Collaborated on the creation of a Single Sign-On (SSO) SDK, improving security and user experience across the bank's ecosystem.

Kotlin Server Driven UIs SSO Android REST APIs

Android Developer

Zup Innovation

Dec 2019 - Sep 2021 (1 year 9 months)

Core contributor to Beagle, an open-source Server-Driven UI framework. Enabled backend-driven layout and logic updates, significantly reducing release cycles and dependency on app store deployments.

Kotlin Server Driven UIs Android Open Source Architecture