About me
I'm James Valentine — a software engineer with a background in physics, a passion for teaching, and a professional dog training business. Based in Seattle.
Background
Education
- B.S. Physics — University of WashingtonDepartmental Honors · Dean's List · 2016
- Minor in Mathematics — applied math & modeling
A rigorous foundation in problem-solving, quantitative reasoning, and first-principles thinking — skills that translate directly into building software.
Work
Software Engineering
12+ years building full-stack web applications with TypeScript, React, Next.js, and Node. I care about clean architecture, developer experience, and shipping things that work.
Currently focused on AI-assisted tooling, developer productivity, and agentic systems.
Teaching
Education & Instruction
20+ years teaching complex subjects — physics, mathematics, and coding at various levels. I believe the best way to learn is to build, and the best way to teach is to make complex things feel simple.
Also the lead instructor at REAL K-9, teaching handler mechanics and canine psychology to clients.
REAL K-9
Dog Training
Founder of REAL K-9 — Seattle-based professional dog training built on focus, technique, and engagement. Service-level obedience, behavior modification, and handler education.