Yash Katiyar

I’m a Full Stack Software Engineer focused on shipping production-ready web and mobile apps end-to-end, from APIs to the user experience. I build with Java, TypeScript, React, React Native, Flutter, Node.js, and SwiftUI, with an emphasis on performance and reliability.

In production roles, I’ve engineered scalable REST APIs in Node.js/Express.js, optimizing SQL and system behavior to reduce response times and integration friction under real load (including 200+ concurrent users). I also deployed releases through CI/CD with 99.5% uptime using zero-downtime blue-green patterns, plus RBAC and workflow automation for high-throughput ERP processing.

I enjoy turning product ideas into intelligent features. I built an AI wellness platform (Next.js, TypeScript, Supabase) for 200+ beta users and an AI assistant powered by OpenAI API + LLM inference that generated 1,000+ personalized meal and fitness plans—secured with Supabase Auth and Row-Level Security.

I’m equally motivated by rapid iteration and measurable outcomes. I integrate analytics (e.g., PostHog) to drive data-backed improvements, and I’ve proven it in competitive builds—winning a 24-hour iOS hackathon with a SwiftUI/MVVM app against 50+ teams.