Senior Infrastructure Security Engineer
Crusoe is an AI infrastructure company that designs, builds, and operates AI data centers and a cloud platform. It provides managed AI services, GPU compute, model fine-tuning and inference, and infrastructure operations for organizations building and deploying AI workloads.
Maintainer signals as of 8/14/2026
Funding history
Projects
About Crusoe
Crusoe, the AI factory company, provides Crusoe Cloud and Crusoe Intelligence Foundry for AI development and production. Its offerings include managed inference, serverless fine-tuning, high-performance NVIDIA and AMD compute, accelerated storage, RDMA networking, managed Kubernetes and Slurm, and operations tooling. The company also designs, builds, and operates modular AI data-center infrastructure using an energy-first approach, serving customers that need scalable training, inference, and AI platform infrastructure.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will establish a high-assurance security posture across cloud and on-premises infrastructure. You will manage infrastructure security posture and visibility, enforce Infrastructure-as-Code standards, build CI/CD security guardrails, operate secrets and certificate services, implement short-lived access controls, secure network foundations, and remediate security gaps with infrastructure and SRE partners.
Requirements
- 5–8 years of experience in infrastructure engineering, SRE, or security engineering
- Understanding of security principles across Linux, container runtimes, and cloud control planes
- Experience using Terraform to manage complex infrastructure at scale
- Knowledge of cryptography, secrets management, PKI, and modern authentication standards
- Experience securing AWS, GCP, and/or bare-metal environments
- Strong networking fundamentals
- Hands-on Kubernetes and container security experience
- Fluency in Go or Python
Responsibilities
- Drive Infrastructure Security Posture Management and cloud-native visibility
- Enforce Infrastructure-as-Code standards using Terraform
- Manage infrastructure security access and posture across cloud and on-premises environments
- Build automated security guardrails into CI/CD and deployment pipelines
- Operate secrets management and certificate lifecycle platforms
- Design and operate X.509 and SSH certificate lifecycles
- Implement short-lived and Just-In-Time access models
- Secure global DNS, service discovery, and network authentication systems
- Design and maintain authentication controls for network infrastructure
- Identify and remediate security gaps in foundational systems
Benefits
- Pension contributions
- Private health and dental insurance
- Income protection
- Life assurance