Senior Product Security EngineerActive$175K–$215K

The opportunity

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 — from electrons to tokens — to power the world's most ambitious AI workloads.

What you'll do

  • Design and build secure frameworks and patterns for high-performance AI: workflows, agents, and models to protect our clients

  • Create reusable security patterns for product microservices, focusing on: service-to-service authorization, API security, and multi-tenant data isolation that scales across product lines

  • Create developer-facing tools and automation that catch security issues early: in the development cycle without slowing teams down

  • Perform security reviews, penetration tests, code reviews, and system design: reviews for Crusoe’s fleet of SaaS offerings.

  • + years of experience shipping production software with strong system design skills

  • Deep expertise in Golang and Node.js/JavaScript, with experience building and: debugging distributed systems Hands-on experience securing gRPC services, REST APIs, and microservice architectures

What they're looking for

  • Strong background implementing authentication and authorization systems using: OAuth2, OIDC, SAML, JWT, and RBAC/ABAC models
  • Production experience with application security tooling (SAST, DAST, SCA) and: CI/CD integration (e.g., Semgrep, OWASP ZAP, Burp, GitLab)
  • Knowledge of runtime application security and observability tools
  • Solid understanding of cloud-native and containerized environments (Docker,: Kubernetes) and network security fundamentals
Senior Product Security Engineer at Crusoe | Role Match