Security Infrastructure Engineer — Resilient Cloud & On-Prem

Surrey Satellite Technology Ltd.; Wood Street; On-site; GBP 65,000 - 90,000; Full time

Job summary

Surrey Satellite Technology Ltd. (SSTL) is seeking a Security Infrastructure Engineer to lead the design, implementation and ongoing operation of SSTL's core IT infrastructure with a strong focus on security, resilience and compliance.

In this role you will provide 3rd line support, collaborate with infrastructure, networking and application colleagues, and ensure security is embedded in every layer of the platform.

Qualifications

• 3–5+ years of experience in security infrastructure, infrastructure, DevSecOps, or related role.
• Hands-on experience securing cloud platforms such as AWS, Azure, or Google Cloud.
• Experience with identity and access management, SSO, MFA, RBAC, and privileged-access controls.
• Experience deploying and maintaining security technologies including SIEM, EDR, vulnerability-management, secrets-management, and intrusion-detection tools.
• Experience with Linux administration, system hardening, patch management, and configuration management.
• Experience investigating security incidents, reviewing logs, identifying root causes, and implementing remediation.

Responsibilities

• Maintain infrastructure services to agreed availability, performance and security standards.
• Implement secure configurations and system-hardening standards.
• Review and remediate infrastructure vulnerabilities.
• Support access control processes, including access reviews, privileged access checks, and enforcement of least privilege principles.
• Support endpoint/server security controls.
• Ensure appropriate logging and security monitoring is enabled and reviewed.
• Support encryption and certificate-management requirements.
• Review infrastructure against security standards and vendor recommendations.
• Identify unsupported and end-of-life systems and associated risks.
• Support security improvements across existing infrastructure.
• Oversee and engage in system upgrades, patching, configuration changes and lifecycle-management activities.
• Monitor Security and compliance within the SSTL infrastructure capacity, performance, availability and health.
• Diagnose and resolve security incidents and problems.
• Support backup, recovery, business continuity and disaster-recovery arrangements.
• Participate in infrastructure projects, migrations and technology refresh programmes.
• Manage the security of the infrastructure through appropriate change, configuration and release-management processes.
• Participate in Cyber Security Incident Response Team (CSIRT) activities, including incident investigation, containment, recovery, and continuous improvement of incident readiness.

Skills

Networking knowledge

Threat modelling

Troubleshooting

Cross-functional communication

Documentation

Team collaboration

Education

Bachelor's degree in computing

CISSP

CCSP

Security+

Tools

Terraform

Ansible

Python

Bash

Docker

Kubernetes

SIEM

EDR

Job description

Surrey Satellite Technology Ltd. (SSTL) is seeking a Security Infrastructure Engineer to lead the design, implementation and ongoing operation of SSTL's core IT infrastructure with a strong focus on security, resilience and compliance.

In this role you will provide 3rd line support, collaborate with infrastructure, networking and application colleagues, and ensure security is embedded in every layer of the platform.