Infrastructure Security Engineer - London
Role Overview
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.
Key Skills for This Role
Full Job Posting
ABOUT THE ROLE:
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.
Cloud & infrastructure security
Design and implement secure cloud architectures across multiple cloud platforms (e.g., AWS, GCP, 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 of cloud infrastructure and services
Implement and manage cloud security tools and services (e.g., CSPM, CWPP, CASB)
Manage identities and roles effectively across cloud and hybrid environments
Monitor and remediate infrastructure to comply with regulations and best practices (e.g., PCI, NIST CSF, GDPR, HIPAA)
Platform, containers & developer enablement
Design and implement secure container standards and automation that enable frictionless developer workflows
Maintain Kubernetes security aligned with current best practices
Collaborate with development teams to ensure security best practices are integrated into CI/CD pipelines
Secure and enhance CI/CD pipelines; integrate and maintain code scanning platforms
Detection, operations & tooling
Monitor and respond to security events and incidents in cloud and hybrid environments
Maintain SIEM data pipelines needed for reliable alerting
Build, deploy, and maintain security operations infrastructure using Python, Terraform, and configuration management (e.g., Puppet)
Develop dashboards and alerts from security metrics
Develop and maintain cloud security policies, standards, and procedures
Own security projects end to end: identify issues and implement solutions
Stay current with emerging cloud security threats and mitigation strategies
BASIC QUALIFICATIONS:
- 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 EU/UK or willing to relocate
PREFERRED SKILLS AND EXPERIENCE:
- 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.
- SpaceXAI is an equal opportunity employer. For details on data processing, view our Recruitment Privacy Notice .
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