Built cross-platform mobile features in React Native and Flutter for a marketplace app serving 20M+ monthly active users, improving listing-creation speed by 35%.
Led full-stack development of new seller tools using Next.js, Node.js, and Python microservices, reducing API response times by 40%.
Integrated an LLM-powered listing assistant (OpenAI, Claude) that auto-generates titles, descriptions, and pricing suggestions, increasing completed listings by 28%.
Implemented an AI image-recognition flow for automatic category tagging, cutting manual categorization steps by 50%.
Built lightweight automation with GitHub Actions and scheduled jobs for release pipelines and data syncs, reducing manual release effort by 60%.
Optimized mobile app performance (startup time, list rendering), raising crash-free sessions to 99.8% across iOS and Android.
