NowWhat I'm working on
NullRabbit
Autonomous security tooling for critical infrastructure. We monitor validator nodes across Ethereum, Solana, Sui, Cosmos and Polkadot — scanning for misconfigurations, shadow-deploying in observation mode, then enforcing. The kind of security that runs while you sleep.
Security Due Diligence
Offensive security assessments for investors. When a VC or PE firm is about to write a cheque, I tell them what the target's security actually looks like — not what the pitch deck says.
If you want to see something fun, try sumo.dev.
BackgroundThe short version
I've been building and breaking things for over twenty years. Started with startups — founded companies in WiFi infrastructure, contactless payments, and food tech before most people had heard of the sharing economy. Along the way I went deep on networking, wrote custom OpenWRT packages in C, and managed thousands of devices across the UK.
I moved into crypto as CTO of Vaultoro, where I rewrote their trading platform, built compliance systems from scratch, wrote Solidity contracts for ETH and ERC20 processing, and helped launch a stablecoin. I'm a published researcher and Techstars Berlin 2017 alumni.
I once built a product called Rascal — a WiFi probe listener for analytics. It worked brilliantly and would have made money. I killed it when I realised how invasive it was. I also figured out how to let Meraki customers flash their access points with our firmware, which made Cisco rather unhappy.
I took a year off to train as a professional Ironman triathlete — swim, bike, run — and then COVID killed the race calendar. These days I keep bees on an allotment and built a monitor for the hives with a Raspberry Pi. I still couldn't finish Ulysses.
SelectedThings I've built
Autonomous security for validator infrastructure. Plough, Ferret, Guard and IBSR.
Live feed of every validator penalty event across Ethereum, Solana, Cosmos and Sui. As it happens.
Crypto exchange — rewrote the trading engine, API, compliance layer and smart contracts as CTO.
Cloud management for 5,000+ WiFi access points. Custom OpenWRT firmware, MQTT comms, Golang backend.
Contactless payment system for homeless people. Built it because it mattered.
Raspberry Pi on an allotment, watching hives. Temperature, humidity, weight. The bees don't seem to mind.