As a Freelance Full Stack Engineer, I deliver end-to-end software, including LINE Messaging API integrations, iOS radio streaming applications, and backend management systems. Several of my systems are in production with real clients.
I own both the API and console for an omni-channel chat and commerce platform where agents, AI, and payments work from one place. It connects to business customer APIs and payment providers, while WebSocket and Redis pub/sub keep ticket queues and notices in sync.
I designed and built Mindgrid, a self-hosted RAG engine for asking project documents and running repeatable analyses on live data. I also built a market data service that collects TradingView prices, calculates indicators, and serves data through an API and exports; its fetch scheduler reduced a full round from about 66 minutes to about 11.
