Infrastructure Security Engineer - London

Salary: £58,000 - 98,000 per year

Requirements:

• Bachelors 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 its 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 such as Terraform or CloudFormation
• Familiarity with containerization technologies and their security implications
• Knowledge of network security concepts and protocols
• Experience with scripting languages such as Python or Bash for automation and tool development
• Proactive mindset with strong ownership, critical thinking, and problem-solving skills
• Located in the EU/UK or willing to relocate
• Relevant security certifications, such as CCSP, CSSK, or 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 such as GDPR, HIPAA, PCI DSS, and NIST CSF
• Strong proficiency with Python, Terraform, and configuration management tools such as Puppet
• Hands-on experience building GitHub Actions and workflows
• Experience with observability and security operations tooling such as Prometheus, Grafana, CloudWatch, Karma, or SIEM platforms such as Wazuh
• Experience 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 securing AI/ML workloads in cloud environments
• Experience in banking, money transmission, P2P payments, or similarly regulated financial platforms

Responsibilities:

• Design and implement secure cloud architectures across multiple cloud platforms, including AWS, GCP, and Azure
• Build and secure mission-critical applications in hybrid cloud and on-premises environments
• Develop and maintain Infrastructure as Code templates with embedded security controls
• Assist with regular security assessments and audits of cloud infrastructure and services
• Implement and manage cloud security tools and services, such as CSPM, CWPP, and CASB
• Manage identities and roles across cloud and hybrid environments
• Monitor and remediate infrastructure to meet regulations and best practices, including PCI, NIST CSF, GDPR, and HIPAA
• Design and implement secure container standards and automation that enable frictionless developer workflows
• Maintain Kubernetes security in line with current best practices
• Collaborate with development teams to integrate security best practices into CI/CD pipelines
• Secure and enhance CI/CD pipelines, and integrate and maintain code-scanning platforms
• Monitor and respond to security events and incidents in cloud and hybrid environments
• Maintain SIEM data pipelines for reliable alerting
• Build, deploy, and maintain security operations infrastructure using Python, Terraform, and configuration management tools such as Puppet
• Develop dashboards and alerts from security metrics
• Develop and maintain cloud security policies, standards, and procedures
• Own security projects end to end, from identifying issues to implementing solutions
• Stay current with emerging cloud security threats and mitigation strategies

Technologies:

• AI
• AWS
• Azure
• Bash
• CI/CD
• Cloud
• CloudWatch
• Embedded
• GCP
• GitHub
• Grafana
• IAM
• Karma
• Kubernetes
• Network
• Prometheus
• Puppet
• Python
• Security
• Terraform

More:

Our mission at SpaceXAI is to create AI systems that can accurately understand the universe and aid humanitys pursuit of knowledge. We are a small, highly motivated team focused on engineering excellence, curiosity, and challenging ourselves. We operate with a flat organizational structure, expect everyone to contribute hands-on to our mission, and recognize leadership through initiative and consistently excellent work. We value strong work ethic, prioritization, and clear communication. We are seeking an Infrastructure Security Engineer to join our security team and help secure critical infrastructure across multi-cloud and hybrid environments, potentially spanning platforms such as SpaceXAI, X Social, X Money, and related systems. The role emphasizes automation, secure foundations, platform hardening at scale, and close partnership with engineering teams. We are an equal opportunity employer.

last updated 40 week of 2026