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We are seeking a talented and motivated Infrastructure Security Engineer to join our security team. In this role, you will design, implement, and maintain secure cloud and hybrid infrastructure, and ensure the integrity of our cloud-native applications.
This role focuses on securing critical infrastructure across multi-cloud and hybrid environments, with work that may span platforms such as SpaceXAI, X Social, X Money and related systems. You’ll operate with an automation-first mindset: building secure foundations, hardening platforms at scale, and partnering closely with engineering teams so security is embedded in how we build and run systems—not bolted on after the fact.
We are seeking a talented and motivated Infrastructure Security Engineer to join our security team. In this role, you will design, implement, and maintain secure cloud and hybrid infrastructure, and ensure the integrity of our cloud-native applications.
This role focuses on securing critical infrastructure across multi-cloud and hybrid environments, with work that may span platforms such as SpaceXAI, X Social, X Money and related systems. You’ll operate with an automation-first mindset: building secure foundations, hardening platforms at scale, and partnering closely with engineering teams so security is embedded in how we build and run systems—not bolted on after the fact.
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Bachelor's degree in Computer Science, Cybersecurity, or a related field
3–5 years of experience in cloud security, infrastructure 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
Proven experience securing hybrid AWS/on-premises (or multi-cloud) environments, including IAM and overall security posture
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
Proactive mindset with strong ownership, critical thinking, and problem-solving skills
Located in the SF Bay Area or willing to relocate
Relevant security certifications (e.g., CCSP, CSSK, AWS Security Specialty)
Deep expertise in Kubernetes and container security
Experience with multi-cloud environments and cloud-to-cloud security
Knowledge of CI/CD best practices and tools
Familiarity with regulatory compliance requirements (e.g., GDPR, HIPAA, PCI DSS, NIST CSF)
Strong proficiency with Python, Terraform, and configuration management (e.g., Puppet)
Hands-on experience building GitHub Actions and workflows
Experience with observability and security operations tooling (e.g., Prometheus, Grafana, CloudWatch, Karma; SIEM platforms such as Wazuh)
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
Experience in banking, money transmission, P2P payments, or similarly regulated financial platforms
$100,000 - $258,000 USD
Base salary is just one part of our total rewards package at SpaceXAI, which also includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts and perks.
SpaceXAI is an equal opportunity employer. For details on data processing, view our Recruitment Privacy Notice.
xAI is an artificial intelligence company founded by Elon Musk that develops AI systems to accelerate scientific discovery. Its main products include the Grok AI chatbot and the Colossus supercomputer, one of the world's largest AI training clusters.
Visit company websiteJobs and hiring trendsUSD 100000-258000 / year
Mid · 3–5 years experience
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