James Walker, PhDAvoxy Technologies
James Walker, PhD

Engineer · Ex-CEO · Researcher

I take new ideas to revenue.

I build the first version of new products — the working build that closes the round, lands the first customers, and gets into real use. Deep on AI when it matters, plain software when it doesn't.

Research
PhD in machine learning
Operating
7 years as a bootstrapped CEO
Clients
Raised £5M+ on the builds
Published
500+ citations

Who I am

An operator with research-grade depth.

I've spent the last decade in software — as an engineer, a CEO, and a researcher. I came up at an enterprise software business that was later acquired, then bootstrapped my own for seven years as CEO without venture capital, with customers across multiple continents. My PhD is in machine learning, with 500+ citations in the field.

I'm hands-on in production code most days — and equally comfortable in a board meeting or in front of investors. I've shipped research-grade systems to enterprises that pay real money. I know which ideas are worth building and which ones aren't.

How I build

The stack I ship with.

Current practice, not aspiration. Everything here I've shipped to paying users.

AI & ML

  • Anthropic & OpenAI APIs
  • Claude Code / agent loops
  • RAG architectures
  • Vector databases
  • Eval harnesses

Engineering

  • TypeScript
  • Python
  • Next.js / React
  • Postgres + Drizzle / Prisma
  • Tailwind / shadcn

Production

  • AWS / GCP
  • Docker
  • CI/CD
  • Multi-tenant SaaS
  • Monitoring & logging

Where it runs

In production at banks, telecoms, and global enterprises.

  • Bank of England
  • JP Morgan
  • Morgan Stanley
  • Knight Frank
  • American Express
  • KPMG
  • Google
  • Intel
  • Nationwide
  • KBank

Say hello.

A question about something I've built, an invitation to your show or stage, or just hello — send a note or email. I read everything.