DV Cleared Security Engineer — Cloud & Infra Defense

LA International; Basingstoke; On-site; GBP 60,000 - 80,000; Full time

Job summary

LA International is seeking a Security Engineer for high-assurance infrastructure in the UK. Must hold Active DV clearance or be eligible, with hands-on expertise in securing Linux/Windows, containers, cloud, and CI/CD pipelines.

You will implement baselines, conduct vulnerability assessments, analyse results, remediate weaknesses with development teams, and monitor security across deployments. Strong communication and collaboration are essential.

Qualifications

• Experience in infrastructure security, system hardening and vulnerability management.
• Strong Linux and Windows hardening experience.
• Knowledge of firewalls, network segmentation and 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

Infra security

Linux hardening

Windows hardening

Firewalls

Vulnerability mgmt

Vuln scanning tools

SIEM

Container security

Cloud security

CI/CD security

Log analysis

Threat hunting

Incident response

Secure development

Comms skills

DV clearance

Education

Cybersecurity NVQ4

STEM degree

Tools

Trivy

SonarQube

Nessus

Job description

LA International is seeking a Security Engineer for high-assurance infrastructure in the UK. Must hold Active DV clearance or be eligible, with hands-on expertise in securing Linux/Windows, containers, cloud, and CI/CD pipelines.

You will implement baselines, conduct vulnerability assessments, analyse results, remediate weaknesses with development teams, and monitor security across deployments. Strong communication and collaboration are essential.