About Us

We envision Firewall as a part of every smart contract network, acting as an embedded security system that intelligently guards against threats.

Our focus is not on marginal improvements; rather, we bring a required paradigm shift in the usability of blockchains.
Build your careers with us

Firewall is building the safety rails that enable the everyday person to use the next era of the Internet. Today, billions of dollars are stolen from users, through irreversible transactions that are classifiable as theft.

Our Team

The Firewall team is made up of blockchain and AI experts, combining deep knowledge of both fields to create cutting-edge security solutions. With a shared commitment to innovation and safety, we are dedicated to making DeFi secure and trustworthy for users.
CO-FOUNDER
Devan Purhar

Founding engineer & employee #1 @ Staked (acq. by Kraken). Ethereum engineer, AI & ML.

Inventor of the DeFi yield aggregator and MEV team @ Kraken. Optimistic cypherpunk.

CO-FOUNDER
Sam Mitchell

Early employee, product team and sales engineer @ Staked. Programmable contracts.

Recently product lead and rust engineer for MEV-capture @ Primitive on the AMM frontier.

ETHEREUM ENGINEER
Michael Minhas

Smart contract engineer, and DeFi degen specializing in blockchain data intersected with security.

Studied comp sci, focused in AI & ML. Previously, Software Engineer @ Central 1 serving institutional fintech infrastructure

RUST / EVM ENGINEER
Alessandro Mazza

Ethereum Foundation Protocol Fellowship 2023. Mathematician + Rust Ethereum, contributing to OSS such as the Reth client, Revm and Alloy.

Founder of one of the biggest crypto community's in Italy. Everything Cosmos, EVM, and execution nodes.

SENIOR AI ENGINEER
Pablo Martin

Mathematician and Computational Neuroscientist (PhD) with deep expertise at the intersection of ML and blockchain. Formerly at OpenZeppelin, with experience at Fintech and Amazon.

LEAD APPLICATIONS ENGINEER
David Hahn

Previously Lead Frontend Engineer at Parcel. Expertise in building seamless, large scale apps for both Web2 and Web3. Ex-Apple and ex-Ford employee.

STAFF SYSTEMS ENGINEER
Shea Williams

Early lead engineer at Monad, where he built the parallel-EVM execution client. Previously an HFT specialist on Wall Street.

ECOSYSTEM LEAD
Kevin Castro

Previously growth lead at Code4rena. Driving growth in the crypto industry since 2017, focusing on strategic marketing, business development, and partnerships.

(we're backed by the best)