need a full-stack developer (backend-focused) to implement this. Responsibilities: Develop lightweight local servers for each UI machine (FastAPI or Node.js). Implement bidirectional communication with Jetson (WebSockets or TCP/IP). Build two simple web UIs: Customer screen (orders + cooking status + live video). Staff screen (hopper/stack status + alerts + action buttons). Integrate live video streaming from Jetson (MJPEG or HLS). Provide documentation and deployment steps. Required Skills: Python (FastAPI) or Node.js for backend servers. WebSockets + REST APIs. Frontend basics (HTML/CSS/JS; React/Vue is fine but not mandatory). Video streaming integration (MJPEG/HLS/WebRTC). LAN-based application deployment. (Nice to have) experience with IoT or machine interfaces.