I’ve been a professional programmer since 1981 — commercial games in high school, C++ at Bell Labs in 1987, a CS degree from Columbia, and several startups since, including a product used by 30,000+ people. For the past two years, mentoring has been my full-time job: 1,000+ one-on-one sessions with teens, college students, career changers, and working engineers worldwide. How I teach: you pick a project you actually care about, and we build it together. I explain what’s going on under the hood and why it matters — not just which buttons to press. I’m a daily power user of AI coding tools and teach you how to direct them — and catch them when they’re confidently wrong. Sessions are practical and informal. Patient teaching, your pace, no dumb questions. También ofrezco sesiones en español.