Available · UK / remote

John Baker

AI & Full-Stack Engineer

Agentic & Multi-Agent Systems

I design, build and operate production AI systems end-to-end. My edge is agentic: I build multi-agent architectures - autonomous coding-agent orchestration, MCP tool servers, RAG, multi-provider LLM routing - and then put them to work building the next system, running fleets of coding agents to ship at a scale that usually takes a team, with the token-cost, governance and evaluation engineering that keeps them reliable in production.

I run my own platforms single-handed by choice - but two decades contracting inside BT, and later co-founding a company, mean I embed in an established team just as readily.

25+Years shipping
8Languages
100%Solo-built
AgenticAI specialism

Selected Systems

in production · developed through Stakker

Three production platforms with a through-line: I built Stakker to run fleets of coding agents, and the rest of the estate is developed and maintained through it - the force multiplier behind a one-person operation.

● live  ·  stakker.app  ·  2026

Stakker

Multi-agent task-orchestration platform

Runs fleets of autonomous, headless coding agents against a shared backlog - across a Laravel API, a TypeScript CLI, a React + Tauri desktop/web app, a native SwiftUI iOS app and a tmux/launchd supervisor - with per-task model routing, prompt-cache-aware token economics, eval loops and agent-health circuit-breakers. It's also the engine room for the rest of this page - the platform I use to build and maintain everything else here.

LaravelTypeScriptTauriSwiftUIClaude CodeLiteLLM
Repositories6
API endpoints158~
Inference runtimes5
Automated tests344~
● live  ·  amplifi-qx.com  ·  2021–present

Amplifi-Qx

End-to-end B2B SaaS platform · Signal Solutions

An 8-language platform that runs an entire signal-booster business - CRM, cellular surveys, field installation, monitoring, finance and portals. Includes a 30-agent AI system on Google ADK, a custom MCP server exposing 100+ access-controlled tools, Qdrant RAG memory and a resilient TimescaleDB hardware-integration service.

CodeIgniterFastAPIGoGoogle ADKMCPQdrantTimescaleDB
Sub-projects21
Languages8
AI agents30
MCP tools100+
● live  ·  omnixi.app  ·  2026

Omnixi

Unified telecoms management platform

A multi-tenant B2B telecoms SaaS with a LiteLLM gateway delivering ~18 task-specific LLM features - anomaly detection, tariff optimisation, spend forecasting, document parsing - plus agentic tool-use that drives real platform actions, guardrails, cost controls and passkey authentication.

LaravelReactExpoLiteLLMStripeWebAuthn
Repositories15
API routes840
AI features18~
Integrations12+

Source is largely commercial and private. Architecture walkthroughs or a supervised code read are available on request ... and my GitHub activity evidences the build.