Chief Blockchain Security Architect

Bullish, Inc. is seeking a Head of Blockchain Security to own and elevate the end-to-end security posture of our blockchain infrastructure, custody systems, and smart contract protocols.

You will operate as a technical authority and strategic partner to internal teams, protocol founders, and external security partners. You will design scalable security frameworks, lead audits across multi‑chain environments, and engineer rapid-response mechanisms to protect assets.