Gregory D.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

I build AI-powered web apps and workflows that actually ship: LLM features with structured, schema-validated outputs, provider fallbacks, server-side key handling, and the payments and access control around them. What I've shipped: - Alchemy: a live, paid web app that turns a creator's plans into structured livestream blueprints. Cloudflare Worker backend calling Gemini 2.5 Flash with an OpenAI fallback, JSON-schema output, Stripe subscriptions, and a native SwiftUI iOS client. - EmpathMath: a live AI analysis app that breaks down high-conflict messages into structured findings with confidence scores, evidence quotes, and citations, plus screenshot OCR. - BLKDMND OS: an internal PostgreSQL control plane for AI agent work, with owner approval gates, an append-only audit log, deterministic dedupe, and 81 tests. Typical work: - Adding LLM features to existing apps (OpenAI and Gemini APIs, structured outputs, guardrails) - Document Q&A assistants that cite their sources and say so when the answer isn't in the documents - Workflow automation and internal tools with React/TypeScript and PostgreSQL - Microsoft Copilot Studio and Microsoft 365 Copilot setup Stack: TypeScript/JavaScript, React, Node, Python, PostgreSQL, Cloudflare Pages and Workers, Vercel, Stripe, Swift/SwiftUI, OpenAI and Gemini APIs, GitHub. I'm also a documentary producer and editor (BBC News, Court TV, BBC Reel), so I explain technical work clearly and can produce demo videos when a project needs them.