ZERION

Core mobile engineer on a DeFi wallet and portfolio tracker used by crypto-native users worldwide. Focused on delivering smooth, highly custom mobile experiences with real-time data and fluid animations.

• 01Built a custom dynamic search UI using React Native Reanimated with real-time touch feedback
• 02Developed an article viewer that renders raw HTML natively in a modal with daily fresh content surfacing
• 03Implemented GraphQL and REST APIs for secure back-end interaction across Expo workflows
• 04Delivered a video viewer similar to Instagram Stories with forward/backward navigation

Event-driven React Native app with Reanimated-powered UI layer for 60fps animations. Real-time wallet data is streamed via WebSocket and cached locally with optimistic updates. GraphQL handles portfolio queries; REST handles trade execution. Tested across both Expo Go and Expo Bare Workflow.

Architecture diagram