Juan A.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 didn't start as a developer. I started as a trader. Almost ten years of trading — first Forex manually, then futures on NinjaTrader once I understood the structural advantages. For the past 8 years I have been building and trading algorithmic systems full time, running my own portfolio on Rithmic while taking on a small number of client engagements for prop firms, funds, and serious independent traders. WHAT MAKES THIS DIFFERENT Most trading systems fail in live markets not because the strategy is wrong, but because the execution layer is not built for real broker conditions. Phantom fills, stop-order race conditions, self-healing protective stops, stale order references — I have solved all of these in production across multiple simultaneous prop-firm accounts. Every system I deliver includes that layer. Current focus: 4-state Hidden Markov Model for real-time regime classification, integrated with Volume Profile and verified on live Rithmic execution with my own capital before touching a client account. WHO THIS IS FOR Prop firm operators and professional traders who need a quant partner for the long run — not a one-time delivery. If your first question is the price, we are probably not the right fit. If your first question is the methodology, let us talk.