Infrastructure Security Engineer
SpaceXAI builds frontier AI models and products including the Grok conversational assistant and a multimodal developer API.
Funding history
About SpaceXAI
SpaceXAI is a US-based AI company focused on accelerating scientific discovery and understanding the universe through reasoning, voice, image, video, and generative AI systems. Formerly xAI, it was acquired by SpaceX effective February 2, 2026, while continuing to operate the x.ai site and services.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will build and secure infrastructure from bare metal through platform and application layers. You will design secure server, network, identity, orchestration, container, and hybrid-cloud foundations; automate security controls; monitor and respond to incidents; maintain security tooling and policies; and partner with developers to embed security into CI/CD workflows.
Requirements
- Bachelor's degree in Computer Science, Cybersecurity, or a related field.
- 3–5 years of infrastructure security, platform security, or related hands-on experience.
- Experience securing bare-metal, data-center, or private-cloud environments.
- Experience with firmware, BMC/iDRAC/iLO, PXE/Kickstart provisioning, and hardware lifecycle security.
- Strong Puppet proficiency for configuration management and fleet hardening.
- Network security experience, including firewalls, segmentation, and hybrid connectivity.
- Experience with hybrid identity and cloud IAM.
- Infrastructure as Code experience with Terraform for physical or VM fleets.
- Familiarity with containerization and Kubernetes security.
- Automation and tool-development experience with Python, Bash, or Golang.
- Familiarity with GDPR, HIPAA, PCI DSS, and NIST CSF.
- Experience in banking, money transmission, P2P payments, or regulated financial platforms.
- Located in the SF Bay Area, Austin, New York, Palo Alto, or Seattle, or willing to relocate to a US office.
Responsibilities
- Design and implement secure bare-metal and private-cloud architectures.
- Harden physical and virtual fleets, including OS baselines, firmware, patching, vulnerability management, and secure boot.
- Build and secure network foundations, including segmentation, load balancers, DNS, PKI, NAC, and IDS/IPS.
- Manage hybrid connectivity and privileged identity access.
- Design and implement secure container and Kubernetes standards.
- Develop and maintain Infrastructure as Code and configuration management with security controls.
- Integrate security best practices and scanning platforms into CI/CD pipelines.
- Monitor and respond to security events and incidents.
- Maintain SIEM data pipelines and develop security dashboards and alerts.
- Build and maintain security operations infrastructure using Python, Terraform, and Puppet.
- Develop infrastructure security policies, standards, and procedures.
- Own security projects from issue identification through solution implementation.
Benefits
- Equity
- Medical coverage
- Vision coverage
- Dental coverage
- 401(k) retirement plan
- Short-term disability insurance
- Long-term disability insurance
- Life insurance
- Discounts and perks