Ryan de Melo

I'm a CTO and hands-on builder. Over eighteen years I've taken platforms from zero to production scale: a B2B API business from $0 to $1.1B, ML systems serving 550M+ recommendations a day, and the payments and credit infrastructure behind $22B+ in commerce. These days I build GenAI infrastructure for regulated enterprises.

This is where I write down the parts that don't fit in a slide: architecture decisions, what actually changes at scale, and the unglamorous work of building teams. Start below, or read more about me .

Featured

• I Asked My AI Agent for an Itemized Bill. It Got Awkward.

  13 Jun, 2026

  A month of heavy AI agent use, itemized: only a fifth of the tokens wrote code, almost half could run on a cheaper model, and the prompt cache quietly bills you for every coffee break.

• Resolving Stuck Receivables With RAG and Agents

  24 Feb, 2026

  A production system that resolves stuck accounts-receivable mismatches by retrieving over invoices, contracts, remittances, and email, then proposing a fix a human approves before any money moves.

• The Enterprise AI OS: My Thesis for the Next Five Years

  10 Feb, 2026

  The durable enterprise AI layer is not a model or a chatbot. It is an operating system that gives agents identity, permissions, tools, memory, and an audit trail over the systems a company already runs.