• Developed and deployed fast-loading, responsive web apps using React, Three.js, and Google Cloud SDK

• Configured full deployment pipelines including DNS and hosting using Google Cloud Platform

• Delivered full-stack solutions independently while managing client expectations and project scopes

• Developed frontend and backend for a group voice call platform using SwiftUI, Ruby on Rails, and GraphQL

• Built performant custom UI, including HLS streaming video and audio players with AVKit/AVFoundation

• Designed and built GraphQL APIs using GraphQL Ruby and PostgreSQL, and clients using Apollo iOS

• Stress-tested and refactored legacy codebases to improve performance, accessibility, and testability

• Collaborated cross-functionally to scope product features into actionable tickets in a kanban cadence

• Built mission-critical logistics systems, optimizing warehouse workflows and reducing lost inventory

• Initiated efforts to support offline app use, including local caching with Realm and SQLite databases

• Designed and built an offline, peer-to-peer, Bluetooth/Wi-Fi network protocol to support remote logistics

• Developed and A/B tested critical-path sales funnel optimizations using React and TypeScript

• Regularly on call for production incidents; coordinated fixes and communications across teams

• Hosted engineering meetings and represented the team at public developer events

• Built and maintained high-traffic (300k+ active users) mobile apps for iOS (Swift/UIKit) and Android (Java)

• Owned deployment to App Store and Play Store for release, TestFlight for QA, and Bitrise for CI/CD

• Developed RESTful API backend using Node.js, Express, and MongoDB to support mobile workflows

• Partnered with design team to build easy-to-use UIs for complex workflows like batch photo editing

• Gathered requirements for Enterprise Data Interchange (EDI) integrations between Mattel and outside businesses; created and presented architecture diagrams

• Prototyped Unity games for then-upcoming View-Master VR headset