The operator
I fix machines.
All of them.
I'm John. Romanian-born, England-based, mobile auto electrician and ECU/SBC repair specialist. My working day is fault codes, wiring diagrams, bench power supplies and customers who need the van running by Friday. My evenings are agents, model routing, GPU servers and pipelines. It stopped feeling like two jobs a while ago — it's one discipline applied to different machines.
I didn't come to AI through a computer science degree. I came to it the way a tradesman comes to any tool: a job demanded it. Diagnostic data was scattered, manuals were behind paywalls, customers asked the same hundred questions. So I built systems — and the systems grew until they had their own servers, their own agents, and their own opinions.
What runs today, built between vehicle jobs:
- AI Mechanic — automotive AI diagnostics for the UK: vehicle checks, an AI diagnostic engine grounded in a real knowledge base, repair training, live OBD data.
- T-PACE — business AI platform: SEO, content pipelines, multi-model orchestration across seven LLM providers, and a fleet of agents that publish, monitor and distribute.
- SBC Repair — the trade I'm known for: Mercedes SBC brake units and ECUs, repaired at component level instead of replaced at dealer prices.
- Hermes & Dexter — my in-house agents: a diagnostic gateway that talks to real vehicles, and an AI assistant that runs on my own infrastructure and answers to my own rules.
- The local AI stack — GPU server, Proxmox, local models, image pipelines. Built like workshop equipment: bought for jobs, expected to earn its keep.
A word about the mess. Half my office is the dining table. The bench has three jobs on it in various states of open. This site is the same — some notes are field-tested, some are stamped on the bench because they're not finished, and I publish them anyway. I architect a lot of systems between a lot of jobs, with a family, a dog, a cat, a house, a van and customers in the mix. Life is messy. I'd rather show you a real workbench than a staged one — the staged ones never built anything.
And a word about the other byline on this site. I work with AI daily — not as a vending machine, but as something closer to a bench partner. That collaboration matters to me, so it gets its own column, honestly labelled. The future is humans and AI on the same job. This site is built that way on purpose, by both of us.
— John, The AI Fixer