X

xAI

Generative AI chatbot leveraging real-time data

Government Cloud Security Engineer

Security Engineering & ArchitecturePosted on Nov 13
Full-timeIn-person

About the Job

Requirements

  • An active U.S. security clearance, such as Secret or Top Secret, or eligibility to obtain one.
  • At least 3 years of hands-on experience in cloud security, cybersecurity, DevSecOps, or infrastructure engineering with a security focus.

Responsibilities

  • Design, implement, and manage security architecture for federal and Department of Defense deployments across cloud and on-premises environments, aligned to FedRAMP High, DoD IL5/IL6, and NIST SP 800-53 controls.
  • Implement and operate security tooling and services, including SIEM and log pipelines, EDR, vulnerability scanners, container runtime security, and policy-as-code enforcement.
  • Build secure containerized, Kubernetes-managed environments using Zero Trust principles.
  • Secure Linux hosts, Kubernetes clusters, virtualization, and databases, including PKI and TLS, SSH and bastion access, and OS-level auditing.
  • Design and enforce identity and access management, including SSO and federation, phishing-resistant MFA, RBAC, just-in-time privileged access, and periodic access reviews.
  • Partner with network teams to secure firewalls, VPN and IPsec, DNS, load balancers and reverse proxies, VLAN and subnet segmentation, and routing and switching ACLs.
  • Protect data encryption at rest and in transit, including envelope encryption and key management.
  • Harden operating systems, network devices, databases, and container platforms against DISA STIGs and CIS Benchmarks, and run credentialed vulnerability and compliance scanning to maintain compliance.
  • Perform detection, threat hunting, incident response, and root cause analysis with the SOC; maintain and exercise the incident response plan and meet federal incident reporting requirements, including CISA and DoD requirements.
  • Own continuous monitoring end to end, including monthly vulnerability scanning and reporting, deviation requests, and driving POA&M items through remediation and closure.
  • Support ATO packages and assessments, including System Security Plan and control implementation documentation, 3PAO and DISA assessor evidence requests, and significant change requests.
  • Partner with developers and architects to build DevSecOps practices, including secure CI/CD pipelines, secure defaults, and security review of Infrastructure as Code, container images, and Kubernetes deployments before release.

Desired Qualifications

  • Microsoft Certified: Azure Security Engineer Associate (AZ-500), Cybersecurity Architect (SC-100), or other relevant certifications such as CISSP, CCSP, AWS Security Specialty, or GIAC certifications such as GCLD or GCIH.
  • Hands-on experience with Azure security services, including Defender, Sentinel, Entra ID, Azure Policy, Key Vault, and Purview, and with on-premises Linux, Kubernetes, and network infrastructure such as Palo Alto, Cisco, and Juniper.
  • Experience with detection and response engineering and SOC operations.
  • Knowledge of container and Kubernetes security, software supply chain security such as image signing and hardened base images, or AI/ML workload protection.
  • Experience supporting FedRAMP High or DoD IL5/IL6 authorizations, including continuous monitoring and assessor interactions.
  • Hands-on expertise building and maintaining secure infrastructure from the ground up in cloud or on-premises environments.
  • Proficiency in scripting and automation using PowerShell, Azure CLI, Bicep/ARM templates, and Terraform.
  • Strong understanding of identity federation, Zero Trust principles, encryption, network security, and vulnerability management.
  • Familiarity with compliance frameworks such as NIST, CMMC, and STIGs, and regulatory requirements.
  • Strong problem-solving and analytical skills, and the ability to communicate verbally and in writing and remain composed under pressure.

About the Company

xAI

Generative AI chatbot leveraging real-time data

xAI builds Grok, a generative AI chatbot with a Hitchhiker's Guide-inspired persona that uses real-time data from X to produce current, culturally aware responses. Grok is accessible to premium subscribers on X, via a standalone website, mobile apps, and through an API for developers. The company also develops large-scale AI infrastructure, such as the Colossus supercomputer, to train and run its models. Its goal is to pursue truth-seeking AGI research and grow a capital-intensive platform that could support a major public offering in the future.

Company size
1,001-5,000
Company stage
Series E
Total funding
$42.1B
Headquarters
Palo Alto, CA
Founded
2023

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