I build reliable mobile products and developer-facing SDKs across Android, iOS, Flutter, and React Native.
The problem, my contribution, the decisions, and what changed.
Restored stalled document synchronization and improved stability through an application-owned queue, profiling, and incremental modernization.
Expanded validation beyond unit tests, traced an incorrect balance to its business rule, and owned module integration across release trains.
Read the case studyBuilt shared resources and virtual credit-card flows, connecting API contracts, reusable components, customer journeys, and application observability.
Read the case studyDelivered React Native SDK work through its Android and iOS dependencies and used merchant-facing sample development to identify platform differences.
Read the case studyMove legacy mobile systems toward testable, reactive architectures without stopping product delivery.
Design synchronization and event delivery for intermittent networks and constrained devices.
Keep public behavior aligned across Android, iOS, Flutter, and React Native boundaries.
Diagnose the behavior users feel: crashes, memory pressure, CPU load, and concurrency defects.