I've built and maintained document editing apps for PDF, DOCX, PPT, and other formats at Aiweapps, using third-party SDKs and AI-powered features.
I built a smart voice recorder with recording and playback, optimized waveform rendering, audio tools, and an AI assistant backed by custom communication architecture. I also contributed to an e-commerce product for children's goods.
I design REST, polling, and WebSocket integrations; ship reusable SPM libraries; and migrate projects to Swift 6 while resolving concurrency issues. I led five iOS developers through code reviews, architectural decisions, and refactoring, and set up Fastlane CI/CD, TestFlight, App Store Connect, and Firebase tooling.
At YouChip, I built macOS video catalog, player, annotation, analytics, and export modules for match analysis, including heatmaps, reports, clips, and TV-broadcast drawing tools. I also designed a modular architecture shared across video, player, broadcast, licensing, and common components.

