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X.ai is seeking an Infrastructure Security Engineer to design, implement, and maintain secure cloud and hybrid infrastructure for AI systems. You will work on securing critical infrastructure across multi-cloud and hybrid environments, spanning platforms such as SpaceXAI, X Social, X Money, and related systems.
Key responsibilities include:
**Cloud & Infrastructure Security:** Design and implement secure cloud architectures across AWS, GCP, and Azure. Build and secure mission-critical applications in hybrid cloud and on-premises environments. Develop and maintain Infrastructure as Code (IaC) templates with embedded security controls. Assist with regular security assessments and audits. Implement and manage cloud security tools (CSPM, CWPP, CASB). Manage identities and roles across cloud and hybrid environments. Monitor and remediate infrastructure to comply with regulations (PCI, NIST CSF, GDPR, HIPAA).
**Platform, Containers & Developer Enablement:** Design and implement secure container standards and automation. Maintain Kubernetes security aligned with best practices. Collaborate with development teams to integrate security into CI/CD pipelines. Secure and enhance CI/CD pipelines; integrate code scanning platforms.
**Detection, Operations & Tooling:** Monitor and respond to security events and incidents. Maintain SIEM data pipelines for reliable alerting. Build, deploy, and maintain security operations infrastructure using Python, Terraform, and configuration management. Develop dashboards and alerts from security metrics. Develop and maintain cloud security policies and standards. Own security projects end to end. Stay current with emerging cloud security threats.
The company operates with a flat organizational structure where all employees are hands-on contributors. Work ethic, strong prioritization, and excellent communication skills are essential.
**Requirements:**
- Bachelor's degree in Computer Science, Cybersecurity, or 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
- Experience with Infrastructure as Code tools (Terraform, CloudFormation)
- Familiarity with containerization technologies and their security implications
- Knowledge of network security concepts and protocols
- Experience with scripting languages (Python, Bash) for automation and tool development
- Proactive mindset with strong ownership, critical thinking, and problem-solving skills
- Located in EU/UK or willing to relocate
**Preferred Skills:**
- Relevant security certifications (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 (GDPR, HIPAA, PCI DSS, NIST CSF)
- Strong proficiency with Python, Terraform, and configuration management (Puppet)
- Hands-on experience building GitHub Actions and workflows
- Experience with observability and security operations tooling (Prometheus, Grafana, CloudWatch, Karma, SIEM platforms like Wazuh)
- Experience building custom cloud security tools or integrations
- Interest in leveraging AI for cloud security monitoring and automation
- Open-source cloud security project contributions
- Experience securing AI/ML workloads in cloud environments
- Background in banking, money transmission, P2P payments, or similarly regulated financial platforms
