Francesc Vilariño Güell

Senior Software Architect | LinkedIn | GitHub

Professional Summary

Strategic and hands-on Software Architect with 26 years of experience, including 16 years specializing in the Android ecosystem. Expert in designing scalable mobile architectures and leading distributed teams to deliver high-performance applications for global brands like eBay, Warner Bros Discovery, and Reddit. Proven track record of improving application stability to 99.5% crash-free sessions and pioneering the adoption of modern technologies like Jetpack Compose, Kotlin Coroutines, and AI-driven features.

Technical Skills

• Languages: Kotlin, Java, C.

• Architecture & Frameworks: MVI, MVVM, Clean Architecture, Jetpack Compose, Android SDK, Dependency Injection (Dagger/Hilt/Metro), Reactive Programming.

• Specializations: AI/ML Integration (MLKit), Video Playback/Editing, Framework Customization (AOSP), CI/CD, Technical Leadership & Mentorship.

Professional Experience

eBay | Senior Software Architect Bellevue, WA | Feb 2024 – Present

• Architected SmartLens, a pluggable smart camera module enabling domain-specific customizations for intelligent detection and price guidance (e.g., Collectibles, Trading Cards).

• Pioneered AI Integration by designing background replacement features and utilizing MLKit subject segmentation to significantly reduce latency and server load.

• Championed Engineering Excellence by leading a Kotlin/Android reading club and authoring definitive documentation on Coroutines and Jetpack Compose best practices.

• Technical Leadership: Conducted interviews for Senior and Staff level positions and performed high-level code reviews to maintain architectural integrity.

Warner Bros Discovery | Senior Staff Engineer Atlanta, GA | May 2022 – Apr 2023

• Drove Stability & Quality: Elevated application stability from 97% to 99.5% crash-free sessions, contributing to a Play Store rating increase from 3.8 to 4.5.

• Team Leadership: Supervised the Android engineering team and successfully recruited 5 Senior Android Engineers to scale operations.

• Modernization: Orchestrated the transition to Jetpack Compose through comprehensive team training and roadmap alignment.

Warner Media | Staff Engineer Atlanta, GA | Apr 2020 – Apr 2022

• Architected the NCAA March Madness app using a modular, reactive approach (Kotlin, MVI, GraphQL), ensuring high performance for a distributed user base.

• Technical Strategy: Authored Technical Specs and translated complex functional requirements into actionable engineering roadmaps.

• Mentorship: Coached junior developers and established high-quality code standards through rigorous architectural reviews.

Wunderman Thompson | Senior Software Engineer Atlanta, GA | Jun 2017 – Mar 2020

• High-Impact Delivery: Led development for premier Android applications including NBA, JetBlue, and PGA Championship.

• Consultative Architecture: Provided robust architectural solutions to meet diverse client requirements within strict enterprise timelines.

Reddit | Senior Software Engineer San Francisco, CA | Jan 2017 – Jun 2017

• Multimedia Innovation: Designed and implemented the core video playback, capture, and editing functionality for the official Reddit Android app.

VMware | Senior Software Engineer Austin, TX | Jan 2016 – Dec 2016

• Feature Engineering: Developed key features for VMware Inbox and provided architectural guidance on emerging mobile technologies.

Dell | Senior Software Engineer Austin, TX | Mar 2014 – Dec 2015

• Feature Ownership: Led the design and end-to-end development of the Email module for the Workspace Android app.

Barnes & Noble | Senior Software Engineer Palo Alto, CA | Mar 2009 – Feb 2014

• Framework Expert: Customized the AOSP framework for Nook eReaders and managed complex OTA (Over the Air) updates and multi-user support.

Early Career Summary

• Intrinsyc Software & Motorola (2005–2009): Specialized in Radio Interface Layer (RIL) implementation and ported telephony stacks to Android and Symbian.

• Sendo, Sagem, Mannesmann VDO, Optimus Mobile (1998–2005): Focused on feature phone development (Nucleus RTOS), WAP browser integration, memory leak detection, and network performance mapping.

Education

• Master of Science (M.S.), Telecommunications Technology | Universitat Politècnica de Catalunya.

• Master of Science (M.S.), Radiocommunications | Supélec (Paris, France).