Senior Security Engineer, DeFi

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Security Engineer, DeFi based in the United States. This role focuses on protecting decentralized finance systems and strengthening security across a rapidly evolving blockchain environment. You’ll bring senior-level security expertise to the design, development, and operation of DeFi products and infrastructure. The position offers the opportunity to work on complex security challenges where technical rigor, proactive risk management, and deep understanding of decentralized systems are essential. You’ll collaborate with engineering and security teams to identify vulnerabilities, improve security practices, and build resilient systems. The role is suited to an experienced security professional who enjoys working with emerging technologies and solving difficult technical problems. You’ll operate in a remote, globally distributed environment with significant autonomy and opportunities for continuous learning.