DV Cleared Security Engineer – Cloud & Infra Defender

LA International Computer Consultants Ltd; Hart; On-site; GBP 65,000 - 90,000; Full time

Job summary

LA International Computer Consultants Ltd is seeking a Security Engineer with active DV clearance to join our security-focused team in the UK. The role involves configuring and hardening Linux and Windows systems, containers, networks, and cloud infrastructure, and integrating security controls into CI/CD pipelines.

Candidates should have hands-on experience in infrastructure security, threat monitoring, vulnerability management, and strong knowledge of Linux/Windows hardening, firewalls, and

Qualifications

• Hands-on infrastructure security, system hardening and vulnerability management.
• Strong Linux and Windows security hardening experience.
• Knowledge of firewalls, network segmentation and infrastructure security controls.
• Experience with security scanning tools such as Trivy, SonarQube or Nessus.
• Familiarity with Security Information and Event Management (SIEM) solutions.
• Understanding of Docker, Kubernetes and container security.
• Experience securing cloud infrastructure and CI/CD pipelines.
• Strong security monitoring, log analysis and incident troubleshooting skills.
• Knowledge of secure development practices and automated security testing.
• Excellent problem-solving, communication and collaboration skills.
• Cybersecurity or IT NVQ Level 4, STEM degree or equivalent technical education.
• CompTIA Security+, CySA+, SSCP or equivalent cybersecurity certification.
• AWS/Azure security or Tenable Nessus accreditation would be advantageous.
• CISSP or CISM certification, or progress towards either qualification, would be beneficial.

Responsibilities

• Configure and harden Linux and Windows operating systems, containers, networks and cloud infrastructure.
• Implement security controls in line with approved security baselines.
• Conduct vulnerability assessments and analyse security scanning results.
• Work with development teams to remediate vulnerabilities and security weaknesses.
• Maintain security tooling integrated into CI/CD pipelines.
• Support automated security testing and compliance checks.
• Investigate security alerts, analyse logs and support threat hunting activities.
• Monitor infrastructure and applications for potential security threats.
• Collaborate with DevOps and engineering teams to improve security throughout the development lifecycle.
• Maintain technical documentation and support security compliance requirements.

Skills

Infrastructure security

OS hardening

Vulnerability management

Linux security

Windows security

Firewalls

Network segmentation

Cloud security

CI/CD security

SIEM

Container security (Docker/Kubernetes)

Threat monitoring

Secure development practices

Communication & collaboration

Cybersecurity education

Certifications (Security+ / CySA+ / SS

Cloud accreditation (AWS/Azure/Tenable

CISSP/CISM potential

Education

STEM degree or equivalent

Cybersecurity IT NVQ Level 4

Tools

Trivy

Nessus

SonarQube

Docker

Kubernetes

Job description

LA International Computer Consultants Ltd is seeking a Security Engineer with active DV clearance to join our security-focused team in the UK. The role involves configuring and hardening Linux and Windows systems, containers, networks, and cloud infrastructure, and integrating security controls into CI/CD pipelines.

Candidates should have hands-on experience in infrastructure security, threat monitoring, vulnerability management, and strong knowledge of Linux/Windows hardening, firewalls, and