Security Engineer

CoreWeave is The Essential Cloud for AI™. Built for pioneers by pioneers, CoreWeave delivers a platform of technology, tools, and teams that enables innovators to build and scale AI with confidence. Trusted by leading AI labs, startups, and global enterprises, CoreWeave combines superior infrastructure performance with deep technical expertise to accelerate breakthroughs and turn compute into capability.

• Network Security Architecture: Design and deploy robust security measures across the network perimeter and internal fabrics (e.g., firewalls, IPS/IDS, segmentation, configuration health, best practices) to protect CoreWeave's globally distributed hyperscale infrastructure hosting large-scale AI workloads
• Zero Trust Implementation: Champion a Zero Trust security model across CoreWeave's network and cloud environments. Architect solutions that enforce least-privilege access, continuous verification, and micro-segmentation of services
• Security Monitoring & Incident Response: Establish robust monitoring for network security events and potential breaches across high-density AI cluster networks
• Cross-Functional Collaboration: Work closely with Networking, Infrastructure, and Software Engineering teams to integrate security best practices into architecture, deployments, and processes
• AI Infrastructure & Interconnect Security: Secure high-density GPU clusters and ultra-low latency backend fabrics
• Leadership & Mentorship: Drive security initiatives and foster a security-first mindset across the organization
• Policy Development: Develop, implement, and continually refine security policies and standard operating procedures for a highly scalable, distributed environment

• 5–10 years of hands-on experience in network security engineering, with exposure to large-scale cloud or hyperscaler environments
• Deep understanding of network security principles and technologies – including experience mitigating DDoS attacks, securing high-speed data center fabrics, defending against web exploits, and implementing zero trust methodologies
• Strong conceptual and practical knowledge of securing modern cloud and network architectures
• Proficient in network protocols (TCP/IP, DNS, BGP, HTTP/S, etc.), network segmentation, VPNs, and firewall configurations
• Experience securing cloud platforms (AWS, GCP, Azure or custom hyperscale infrastructure) and containerized environments
• Experience in designing, implementing, and reviewing security policies and controls for highly scalable, distributed systems
• Familiarity with industry standards and compliance frameworks (e.g., NIST, ISO 27001, SOC2)

• Location: New York, NY / Sunnyvale, CA