Senior Information Security Engineer

The world of digital assets is accelerating in speed, magnitude, and complexity, opening the door to new ways for leveraging the blockchain. Fireblocks’ platform and network provide the simplest and most secure way for companies to work with digital assets and it trusted by some of the largest financial institutions, banks, globally-recognized brands, and Web3 companies in the world, including BNY Mellon, BNP Paribas, ANZ Bank, Revolut, and thousands more. Making Security Real As a Senior Information Security Engineer, you’ll be on the front lines of protecting the systems, users, and data at scale. This role is about turning strategy, architecture, and intent into enforced controls, effective detections, and resilient operations. You’ll work hands-on with the tools, signals, and incidents that define our real security posture. If you believe security should be practical, measurable, and embedded into daily operations—and not just documented—we want you on the team. What the Role Looks Like in Practice You will be the technical anchor of our internal security posture: * Architectural Ownership: Deploy, manage, and tune enterprise-grade security stacks (EDR, DLP, IAM, CASB, MDM) with a focus on deep integration and automation. * The AI Frontier: Lead the charge on AI Security. You will implement and secure AI-driven workflows, ensuring LLM use is governed and protected against emerging threats such as data leakage and prompt injection. * Proactive Defense: Build and maintain high-fidelity detections and guardrails that align with real-world attack techniques. * Cross-Functional Synergy: Partner as a peer with Engineering, IT, and DevOps to ensure security controls are frictionless, automated, and effective. What You’ll Bring Technical Must-Haves: * 7+ Years of Senior Experience: Extensive hands-on experience in InfoSec Engineering or SecOps within high-growth, cloud-native environments. * AI Security Mastery (Required): You are ahead of the curve. You hav