Senior Infrastructure Engineer - Secure Cloud & DevSecOps

IBM SiXworks; Farnborough; On-site; GBP 70,000 - 110,000; Full time

Benefits offered by this job

25 days annual leave + bank holidays

Private medical cover

Life Assurance

Pension (10% employer, 5% employee) [s

Bonus

Professional development and training

Secure parking

Gym on site

Café & restaurant on site

Open break out spaces

Job summary

SiXworks is seeking a Senior Infrastructure Engineer to design, build and secure digital solutions for defence and national security missions. You’ll work in highly protected environments, delivering secure, scalable infrastructure across multi-classification systems.

You will maintain Windows and Linux environments, manage virtualization, and support hybrid cloud applications. A UK security clearance or eligibility is essential for this role.

Qualifications

• Senior infrastructure engineer with hands-on experience in secure environments.
• Knowledge of Windows and Linux server administration, virtualization, and cloud capabilities.
• Experience with security-focused design, incident response, and automation.

Responsibilities

• Maintain, improve, and secure SiXworks’ multi-classification, virtualised, collaboration and development environments.
• Improve Secure by Design capabilities with IT infrastructure colleagues.
• Provide infrastructure support to Office 365 and project-based cloud implementations (public, private, hybrid).
• Perform maintenance tasks on infrastructure through change control.
• Monitor and manage tickets/alerts; triage incidents; maintain monitoring components.
• Patch platforms per provider recommendations and security policy.
• Assess incident impact, restore service, and follow up actions.
• Identify trends and plan changes to improve stability and performance.
• Maintain cutting-edge knowledge and pursue relevant certifications.
• Advise customers and project teams on infrastructure and support aspects.
• Cascade knowledge through team articles and wider organisation.
• Support SiXworks in winning business.

Skills

Windows Server administration

RedHat OpenShift

SSO concepts

VMware

Networking

Kubernetes administration

Automation (Ansible/PowerShell)

DevSecOps tooling

Elastic

Nessus

Experience working in Agile sprints

Tools

HashiCorp Terraform

HashiCorp Vault

VMware TKGI

Job description

SiXworks is seeking a Senior Infrastructure Engineer to design, build and secure digital solutions for defence and national security missions. You’ll work in highly protected environments, delivering secure, scalable infrastructure across multi-classification systems.

You will maintain Windows and Linux environments, manage virtualization, and support hybrid cloud applications. A UK security clearance or eligibility is essential for this role.