Federico Di Candia

Clinical Operating System. Built with Next.js 14, TypeScript, PostgreSQL, Prisma, and Redis. Features end-to-end WebRTC video consultations, TipTap rich-text editing, and automated AI flash briefings via OpenAI GPT-4. Includes secure document storage via AWS S3 with built-in Tesseract.js OCR capabilities for medical records. The UI/UX is styled with Tailwind CSS, Radix UI, and Shadcn UI components, providing a flawless dark-mode experience.

Enterprise AI Voice SaaS. Engineered with Node.js, Express, Next.js 14, and Prisma over a PostgreSQL Database. Operates autonomously 24/7 handling multi-turn customer calls using Twilio Voice Webhooks and OpenAI Whisper / GPT-4o-mini. Features a complex event-driven architecture with Stripe subscription billing, Redis caching for rate limiting, and robust multi-tenant business isolation. Dashboard features a premium Tailwind/Shadcn interface.

Quantitative Trading System. High-performance engine combining a Fastify/Node.js Core and a Python/FastAPI ML microservice. Uses TimescaleDB optimized for OHLCV time-series and Redis for caching. Implements LSTM & XGBoost predictive models alongside an advanced backtesting engine. The Next.js dashboard uses TradingView Lightweight Charts for granular candlestick rendering and Recharts for correlation heatmaps.

B2B RAG-Powered Assistant. Multi-tenant SaaS and embeddable widget architecture. The Fastify backend integrates Retrieval-Augmented Generation (RAG) mapping chunks into a Qdrant vector database via OpenAI embeddings. Features complete tenant isolation, usage metering, and Redis-powered rate limiting. The frontend widget is compiled with Vite for ultra-fast DOM injection into client websites.

Climate Adaptation Analytics. Geographic Decision Support System built with React 18, Zustand, Vite, and PostgreSQL (PostGIS) / Drizzle ORM. Incorporates a Python FastAPI service for complex environmental risk models (C3S, E-OBS) and NPV calculations. The UI heavily leverages Leaflet maps for interactive spatial data simulation, Headless UI, and Tailwind CSS for the presentation layer.

AI Legal Document Analyzer. Full-stack SaaS tailored for compliance and contract intelligence. Frontend powered by React & Vite. Backend uses Node.js/Express, Supabase, and BullMQ over Redis for asynchronous document ingestion via mammoth and pdf-lib. Features real-time pipeline status updates using Socket.io, secure document signing via jspdf, and AI models to parse clauses in real-time.

Healthcare Workflow Engine. Clinical productivity application built around a React/Vite SPA and Express APIs backed by Supabase. Processes heavy data ingestion via BullMQ worker queues with live systemic updates propagated via Socket.io WebSockets. Includes integrated PDF processing, Stripe billing interfaces, Redis caching, and interactive dashboards adhering to medical accessibility standards.

University Social App. Cross-platform mobile networking application built with React Native, Expo, and Firebase. Implements real-time messaging, university email verification, multi-language support, and media streaming. Backend services proxy requests to an autonomous OpenAI API content moderation server to dynamically filter explicit media in real-time.