08 · CV

Mat Siems — AI Engineer (Agentic Systems).

Production AI engineer with 15+ years shipping software, the last 4 deep in agentic systems on Claude Code, MCP, and Anthropic's Managed Agents — 3 platforms live, 115+ agents in production, 23 AI-native sites running.

60-word pitch

Production AI engineer with 15+ years shipping software, the last 4 deep in agentic systems.

I design, ship, and run multi-agent fleets on Claude Code, MCP, and Anthropic's Managed Agents — including a 115-agent workspace (AIOS), a multi-persona backoffice (AIBO), and a 23-site AI-native publishing platform (MS26).

Code-fluent, product-literate, agile-trained, currently delivering at Cleverfox AI.

Right now, in production

The impact bar.

Agentic platforms live
3 — AIOS · AIBO · ABC
Foxes / agents shipped
115+ (AIOS Fox roster)
AI-native sites in production
23 (MS26 fleet)
Auto-indexed second-brain notes
2,094 (cross-codebase vault)
AI media shipped
1,000+ videos · 10,000+ images
Years delivering production software
15+
The toolkit, today

Agent-first stack.

Claude Code + MCP for agentic build, Next.js 16 + Vercel for shipping fast, Supabase + Mongo for data.

Agentic stack
  • Claude Code
  • Anthropic Managed Agents
  • Model Context Protocol (MCP)
  • Subagents · Skills · Hooks · Plugins
  • Tool-use design · Function calling
  • A2A protocols
  • Multi-agent orchestration
  • Agent memory & state
  • Recoverable fallback chains
Models & frontier
  • Claude (Opus 4.7 · Sonnet 4.6 · Haiku 4.5)
  • GPT-5
  • Gemini 3
  • Llama 3
  • DeepSeek · Mistral
  • OpenRouter routing
  • Runware · Stability Matrix · Fooocus
  • Whisper · Coqui
Retrieval & knowledge
  • RAG · GraphRAG
  • Embeddings · Vector DBs
  • Hybrid search · Chunking
  • LlamaIndex
  • Vault-style auto-indexing
  • Entity linking · Backlinks
Multimodal generation
  • SDXL · Flux · nano-banana · Midjourney
  • Seedance · WAN · Sora · Runway · Pika
  • Coqui TTS · Whisper STT
  • Remotion composition
  • End-to-end pipelines
Backend & infra
  • Python · FastAPI
  • Node 22 · Bash
  • MongoDB Atlas (FLEET shape)
  • Supabase Postgres + RLS
  • AWS (EC2 · S3 · Route53 · IAM)
  • Vercel · Docker · GitHub Actions · NGINX
Frontend
  • Next.js 16 (App Router)
  • React 19
  • TypeScript
  • Tailwind v4
  • shadcn/ui · lucide · Radix
  • Recharts · Storybook
Flagship agentic builds · 2026

Three platforms, one playbook.

AIOS, AIBO, and ABC — all live, all multi-agent, all running on the same Claude Code & MCP foundation.

AIOS
115-agent workspace — Cleverfox Master Workspace

A 115-agent workspace (Fox roster) with a hardened Claude API proxy, multi-workspace tenancy, 24 integrations, end-to-end Vitest suite, and an auto-recovery fallback chain that survived the November 2026 Anthropic 503 incident with zero downtime for paying tenants.

  • Next.js 15
  • React 19
  • Supabase
  • Claude API + OpenRouter fallback
  • MCP
  • Vercel
Outcome

Weekly versioned phases (v10.65 and counting). Zero downtime through the November 503 incident.

AIBO
AI-first backoffice — multi-agent persona pipeline

A multi-agent backoffice that designs, generates, and operates the asset library for the entire 23-site fleet — personas, page heroes, hero videos, product imagery, daily digests. Each persona is an autonomous agent with its own prompt, model, tools, and output schema.

  • Next.js
  • MongoDB FLEET
  • S3
  • Multi-agent persona pipeline
Outcome

Replaced six manual roles with a single ops console.

ABC
The 1G 2026 cockpit — 28 routes, one keyboard

A 28-route command centre orchestrating the entire MS26 ecosystem — Apps + Backoffice + Context. Every operational verb (build, deploy, push, analyse, generate, ingest, sync) is a Claude Code skill. The cockpit became the operating system for the whole 2026 personal-fleet target.

  • Next.js 16
  • Tailwind v4
  • shadcn
  • Supabase
  • Mongo
  • S3
  • 60+ Claude Code skills
Outcome

One human running 23 live sites + three agentic platforms, solo.

AI Engineering skills

Ten lenses on the work.

  1. 01
    Agentic systems

    Claude Code · Anthropic Managed Agents · MCP (own + third-party servers) · Subagents · Skills · Hooks · Plugins · Tool use · Function calling · A2A protocols · Multi-agent orchestration · Versioned phase shipping

  2. 02
    Models & frontier

    Claude Opus 4.7 · Sonnet 4.6 · Haiku 4.5 · GPT-5 · Gemini 3 · Llama 3 · DeepSeek · Mistral · OpenRouter routing · Recoverable fallback chains

  3. 03
    RAG & knowledge systems

    Embeddings · Vector DBs · Hybrid search · Chunking · Knowledge graphs · Retrieval optimisation · LlamaIndex · Vault auto-indexing · Backlinks

  4. 04
    Multimodal generation

    TTI (SDXL · Flux · nano-banana · Midjourney) · TTV (Seedance · WAN · Sora · Runway · Pika) · TTS/STT (Coqui · Whisper) · Remotion composition

  5. 05
    Backend & APIs

    Python · FastAPI · Node 22 · Bash · REST / JSON APIs · Inference pipelines · Recoverable proxy patterns

  6. 06
    Data engineering

    MongoDB Atlas (FLEET shape, 100+ apps) · Supabase Postgres + RLS · JSON-on-disk registries · Metadata automation · Vector search

  7. 07
    Cloud, DevOps & deployment

    AWS (EC2 · S3 · Route53 · IAM) · Vercel · Docker · GitHub Actions · NGINX · CI/CD with vitest contract tests

  8. 08
    Frontend & prototyping

    Next.js 16 (App Router) · React 19 · TypeScript · Tailwind v4 · shadcn/ui · Radix · lucide · Storybook

  9. 09
    Product, governance & leadership

    Agile · Scrum · Lean · MVP delivery · Backlog · Sprints · User Stories · Phase captains · Weekly version cuts · GDPR · Responsible AI · Audit · Stakeholder alignment

  10. 10
    AI media at scale

    1,000+ AI videos shipped · 10,000+ AI images shipped · 200+ hours AI audio · Daily content engine (PAD · LAD · IAD · AAD · VAD)

Experience

Fifteen years, six recent engagements, one through-line.

From digital transformation to agentic AI — shipping production systems for regulated, large-scale organisations.

  1. Cleverfox AI
    2025 – present
    Lead AI Engineer & Consultant

    Founded the Cleverfox AI engineering practice. Designed and shipped AIOS (115 agents), AIBO (multi-persona backoffice), and the MS26 23-site platform. Built the agentic-AI delivery playbook: Claude Code skills as the unit of operational work, MCP for tool reach, versioned phase shipping with vitest contract tests and recoverable model fallbacks.

  2. Allianz
    2024 – 2025
    AI Consultant · Technical PM

    Delivered Copilot Studio assistants, voice agents, and AI-driven contact-centre workflows. Brought product-level rigour to a regulated enterprise AI rollout (GDPR, internal audit, redaction).

  3. RWS
    2023
    Technical PM & AI Consultant

    Integrated AI translation workflows into the existing language-services platform; led Agile delivery across cross-region engineering teams.

  4. Sainsbury's
    2022
    Technical Delivery Manager

    Delivered a CI/CD data pipeline (Snowflake + Jenkins + Airflow) powering marketing analytics for one of the UK's largest retailers.

  5. Open Play
    2021
    Technical Consultant

    Delivered integrated e-commerce + leisure management platform (membership, payments, ticketing, search).

  6. Brittany Ferries
    2018 – 2020
    Digital Transformation Consultant

    Delivered the booking platform refresh — AI-ready content models, faceted search, payments architecture.

Earlier engagements
  • Dun & Bradstreet
  • Account Technologies
  • M-Kopa
  • NBC Universal
  • Citizens Advice
  • BBC
  • AOL
  • DoubleClick (Google)
  • Expedia
  • MasterCard
  • Aviva
  • Publicis
  • CHI & Partners
Education & certifications

Four threads — cert, AI, engineering, story.

Target qm3 2026
Claude Architect Certification (CCA)

Anthropic · prep tracker at github.com/flexappdev/cac

Ongoing
AI, Data Science & Python

MongoDB University · Snowflake University · Coursera

2005
B.Comm — Decision Science & MIS

Concordia University, Montreal

1999
Film Production Diploma

Collège Stanislas, Montreal

Hiring for agentic systems?

Talk to me about MCP, Managed Agents, and shipping production multi-agent platforms.

FTE, contract (outside IR35), or POM-based. The fastest way is LinkedIn — DMs open, response within a working day.