Senior Product Security Engineer

About the Company

Crusoe is on a mission to accelerate the abundance of energy and intelligence. As the only vertically integrated AI infrastructure company built from the ground up, we own and operate each layer of the stack to power the world's most ambitious AI workloads.

Responsibilities

• Design and build secure frameworks and patterns for high-performance AI workflows, agents, and models
• Create reusable security patterns for product microservices, focusing on service-to-service authorization, API security, and multi-tenant data isolation
• Create developer-facing tools and automation to catch security issues early in the development cycle
• Perform security reviews, penetration tests, code reviews, and system design reviews for SaaS offerings

Requirements

• 7+ years of experience shipping production software with strong system design skills
• Deep expertise in Golang and Node.js/JavaScript
• Experience building and debugging distributed systems
• Hands-on experience securing gRPC services, REST APIs, and microservice architectures
• Strong background implementing authentication and authorization systems (OAuth2, OIDC, SAML, JWT, RBAC/ABAC)
• Production experience with application security tooling (SAST, DAST, SCA) and CI/CD integration
• Knowledge of cloud-native and containerized environments (Docker, Kubernetes)
• Strong grasp of OWASP Top 10, secure coding practices, and cryptography

Preferred Qualifications

• Experience building reusable security frameworks or internal developer platforms
• Background in platform or infrastructure-adjacent security engineering
• Experience influencing security practices across multiple engineering teams
• Familiarity with supply chain security and dependency risk management

Benefits

• Competitive compensation and Restricted Stock Units
• Comprehensive health, dental & vision insurance
• 401(k) Retirement plan with company match up to 4%
• Paid parental leave and volunteer time off
• Professional development & tuition reimbursement