Senior Fullstack Developer - Real-Time AI Orchestration & Video PWA

The Challenge: Build a mission-critical industrial collaboration platform focused on high-stakes environments. The project involves complex real-time data handling, multi-user video synchronization, and automated safety validation. Key Deliverables: High-Performance PWA: A mobile-first, offline-capable application for industrial field use. Secure Document Engine: Encrypted environment for technical document processing (PDF/RAG) and granular access control (RBAC). AI-Mediated Collaboration: Implementation of an LLM-based orchestrator to monitor multi-actor communications (audio/text), identifying technical contradictions and enforcing safety protocols in real-time. Real-Time Video Stack: Integration of  with adaptive bitrate for low-bandwidth environments. Transactional Engine: Marketplace infrastructure with Stripe integration for specialized services and technical content. Required Stack: Frontend: React.js (High-contrast/Industrial UI). Backend: Node.js / PostgreSQL (Advanced RBAC architecture). Real-Time:  SDK & WebSockets. AI: Gemini API for mediation and grounding.