Database schema, backend, real time infrastructure, frontend, payments, deployment, operations. Not prototypes: systems that run real businesses daily for years. AI is on both sides: LLMs inside what I build, and AI in how I engineer every day, on top of 18 years of systems fundamentals.
In the systems I ship: LLMs wired directly into live databases and business rules. Natural language interfaces over real inventory, automated analysis of real invoices. The AI is not bolted on; it reads the same data the business runs on.
In my workflow: AI is how I engineer in any language the problem demands. My expertise is 18 years of systems fundamentals (architecture, data, security, operations). AI is the multiplier, and I direct it like I'd direct a team.
Unlimited communication identities behind a single link. You share frescolink.com/your-name instead of your phone number, and manage every conversation from one dashboard. Y Combinator S2026 applicant.
The part I'm proudest of: I wrote the real time layer, a WebSocket server in C on libwebsockets, and put it in production on AWS. It verifies JWTs natively in C, encrypts content with AES-256, persists every message to MySQL through a dedicated worker thread with an async job queue, fans out messages across sessions, and even fires AI triggers directly from C.
Fresco Products (frescoproductsny.com) is a food distributor in the Bronx supplying well known restaurants across New York and Manhattan. Their entire internal operation (orders, warehouse, invoicing, delivery) runs on a platform I architected and built alone, now holding 973,000+ records of production data, and they have used it every single day for 6+ years.
Since LLMs became available I integrated them into the core of the system: a natural language assistant that queries the live database, and automated executive analysis of 800+ invoices per month covering customer concentration, product performance and recommendations. Not chatbot wrappers. AI reading real business data with real business rules.
Three products shipped end to end (backend, database, frontend, payments, email, infrastructure) and alive in the market right now:
Full infrastructure run by one person: AWS (EC2, RDS, SES), Cloudflare (DNS, CDN, R2 object storage), Stripe, Twilio.