Infrastructure Security Engineer - London
About this role
Designing secure cloud architectures, building Infrastructure as Code templates with embedded controls, and monitoring infrastructure to comply with regulations form the core day-to-day focus of this role. Team members safeguard multi-cloud and hybrid environments while partnering with engineering colleagues to integrate security into continuous integration and deployment pipelines. Operating with a flat organizational structure, the security group maintains mission-critical applications across related platforms like X Social and X Money.
This position exists to ensure the integrity of cloud-native systems through an automation-first mindset and scalable platform hardening. Ideal candidates are hands-on practitioners who thrive on curiosity, take complete ownership of security projects, and communicate technical knowledge concisely with teammates.
What you will do
- Design and implement secure cloud architectures across platforms such as AWS, GCP, and Azure.
- Develop and maintain Infrastructure as Code templates with integrated security controls.
- Manage identities and access roles effectively across hybrid and multi-cloud environments.
- Collaborate with development teams to integrate security best practices into CI/CD pipelines.
- Monitor and respond to security events and incidents in cloud and hybrid setups.
- Own security projects from end to end by identifying issues and implementing robust solutions.
What you need
- Hold a Bachelor's degree in Computer Science, Cybersecurity, or a related field.
- Bring three to five years of professional experience in cloud security, infrastructure security, or related roles.
- Demonstrate a strong understanding of cloud security principles, compliance frameworks, and industry best practices.
- Show proficiency in at least one major cloud platform and its associated security services.
- Possess experience securing hybrid or multi-cloud environments, including IAM configuration.
- Utilize Infrastructure as Code tools such as Terraform or CloudFormation for automation.
- Apply scripting knowledge in languages like Python or Bash for tool development.
Nice to have
- Relevant security certifications such as CCSP, CSSK, or AWS Security Specialty
- Deep expertise in Kubernetes and container security
- Experience with CI/CD best practices, GitHub Actions, and workflows
- Knowledge of regulatory compliance requirements including GDPR, HIPAA, and PCI DSS
- Interest in leveraging AI for cloud security monitoring and automation
Skills and tech stack
Questions candidates ask
What locations are considered for this position?
Candidates must be located in the EU or UK, or be willing to relocate.
What kind of environment will I be securing?
The role focuses on securing critical infrastructure across multi-cloud and hybrid environments, spanning platforms such as SpaceXAI, X Social, X Money, and related systems.
What qualifications are required for applicants?
Applicants need a Bachelor's degree in Computer Science, Cybersecurity, or a related field, alongside three to five years of experience in cloud or infrastructure security.