Architected and built new B2B-oriented features from scratch, including the "Trends" dashboard for real-time brand monitoring. Leveraged Cursor AI to accelerate workflows by automating repetitive tasks (dependency management, resolving compilation errors, and writing unit tests) and architecting solutions for complex UI challenges, such as rendering custom dot charts on screen. Developed technical design documents for new features and experiments to ensure long-term scalability. Established testing patterns for Compose and legacy code using UI Automator and Strikt. Conducted analytics audits and implemented experimentation frameworks for high-impact releases.

Developed a new version of the Sonos app for WiFi-connected music playback and multi-room speaker configuration. Integrated multiple music service SDKs into a unified internal common SDK. Built digital tools for truck drivers from scratch across the US using Jetpack Compose and Kotlin Coroutines. Provided technical guidance on modern Android resources and established CI/CD workflows for automated testing.

Optimized video performance for millions of concurrent users using ExoPlayer, focusing on adaptive bitrate and custom caching. Managed the entire backend infrastructure using the full Firebase suite (Firestore, Functions, Auth, Storage), eliminating the need for a traditional custom backend. Refactored legacy components into 100% Kotlin modules and migrated the DI layer from Dagger to Hilt.

Key developer for the RappiCard product, launching the first startup-led credit card in Mexico with numberless security features. Improved delivery direction predictions and order placement flows for the first Colombian unicorn. Managed multi-module projects using MVVM, Dagger, and RxJava.

Developed a low-level library for BLE communication with scooters, utilized across all company applications. Integrated Firebase ML Kit and CameraX for automated scooter inventory detection and QR scanning. Escalated the prototype architecture into a mature startup environment.

Served as the sole Android developer, re-writing both rider and driver apps with modern technologies in 2 months. Integrated Google Maps and Location Services for real-time commute optimization.

Learned scalable coding and testing within a mature expert team. Managed AutoPlaza/TuCarro apps using Android Flavors to share codebases across regions.