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Infrastructure Security Engineer

San Francisco & Palo Alto, CA

About xAI

xAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge.

Our team is small, highly motivated, and focused on engineering excellence. This organization is for individuals who appreciate challenging themselves and thrive on curiosity.

We operate with a flat organizational structure. All employees are expected to be hands-on and to contribute directly to the company’s mission. Leadership is given to those who show initiative and consistently deliver excellence. Work ethic and strong prioritization skills are important.

All engineers and researchers are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates.

About xAI

xAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge.

Our team is small, highly motivated, and focused on engineering excellence. This organization is for individuals who appreciate challenging themselves and thrive on curiosity. Engineers are encouraged to work across multiple areas of the company, and as a result, all engineers and researchers share the title "Member of Technical Staff."

We operate with a relatively flat organizational structure. All employees are expected to be hands-on and to contribute directly to the company’s mission. Leadership is given to those who show initiative and consistently deliver excellence. Work ethic and strong prioritization skills are important.

All engineers and researchers are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates.

xAI does not have recruiters. Every application is reviewed directly by a technical member of the team.

Role Overview:

We are seeking a talented and motivated Cloud/Infrastructure Security Engineer to join our security team. In this role, you will be responsible for designing, implementing, and maintaining secure cloud infrastructure and ensuring the integrity of our cloud-native applications.Key Responsibilities:

  • Design and implement secure cloud architectures across multiple cloud platforms (e.g., AWS, GCP, Azure)
  • Develop and maintain Infrastructure as Code (IaC) templates with embedded security controls
  • Conduct regular security assessments and audits of cloud infrastructure and services
  • Implement and manage cloud security tools and services (e.g., CSPM, CWPP, CASB)
  • Collaborate with development teams to ensure security best practices are integrated into CI/CD pipelines
  • Monitor and respond to security events and incidents in cloud environments
  • Develop and maintain cloud security policies, standards, and procedures
  • Stay current with emerging cloud security threats and mitigation strategies

Ideal Experience:

  • Bachelor's degree in Computer Science, Cybersecurity, or a related field
  • 3-5 years of experience in cloud security or related roles
  • Strong understanding of cloud security principles, compliance frameworks, and best practices
  • Proficiency in at least one cloud platform (AWS, GCP, or Azure) and associated security services
  • Experience with Infrastructure as Code tools (e.g., Terraform, CloudFormation)
  • Familiarity with containerization technologies and their security implications
  • Knowledge of network security concepts and protocols
  • Experience with scripting languages (e.g., Python, Bash) for automation and tool development

Preferred Qualifications:

  • Relevant security certifications (e.g., CCSP, CSSK, AWS Security Specialty)
  • Experience with multi-cloud environments and cloud-to-cloud security
  • Knowledge of DevSecOps practices and tools
  • Familiarity with regulatory compliance requirements (e.g., GDPR, HIPAA, PCI DSS)
  • Experience with Kubernetes and container security

Bonus Skills:

  • Experience in building custom cloud security tools or integrations
  • Interest in leveraging AI for cloud security monitoring and automation
  • Contributions to open-source cloud security projects
  • Experience with securing AI/ML workloads in cloud environments

Annual Salary Range

$200,000 - $340,000 USD

xAI is an equal opportunity employer and does not unlawfully discriminate based on race, color, religion, ethnicity, ancestry, national origin, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender, gender identity, gender expression, age, disability, medical conditions, genetic information, marital status, military or veteran status, or any other applicable legally protected characteristics. 

Qualified applicants with arrest or conviction records will be considered for employment in accordance with all applicable federal, state, and local laws, including the San Francisco Fair Chance Ordinance, Los Angeles County Fair Chance Ordinance for Employers, and the California Fair Chance Act. 

For Los Angeles County (unincorporated) Candidates:

xAI reasonably believes that criminal history may have a direct, adverse and negative relationship on the following job duties, potentially resulting in the withdrawal of a conditional offer of employment: 

  • Access to information technology systems and confidential information, including proprietary and trade secret information, and/or user data;
  • Interacting with internal and/or external clients and colleagues; and
  • Exercising sound judgment.

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