Staff Product Security Engineer (Security)

Phantom is recruiting a Staff Product Security Engineer (Security) for remote work focused on AI, SecOps, senior, web3, Engineering, Product. We’re looking for strong security engineers with high agency who can identify the risks that matter, build practical solutions, and take ownership from initial discovery through verified remediation You’ll work directly with engineering and product teams, lead complex security initiatives, and build capabilities that scale across the company – Architecture and Threat Modeling: Lead security reviews for new products and major architectural changes, with particular attention to authorization boundaries, sensitive data, transaction integrity, key material, and third-party integrations