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    Linux Engineer

    Design
    CBSbutler Holdings Limited trading as CBSbutler
    Hampshire
    Contract
    Competitive
    On-Site

    Job Description

    Linux Engineer - DV cleared

    months +

    +On site in Hampshire

    +Outside IR35

    • 550 - 650 a day

    +DV cleared role - current active clearance is essential

    +Sole British national only - due to the nature of the project

    We're looking for an experienced DV Cleared Linux Engineer to join a high-profile Defence programme supporting critical secure infrastructure within an MOD environment.

    This is a fully on-site role based in Hampshire , offering the opportunity to work on business-critical systems where security, resilience, and performance are paramount. You'll become part of an experienced technical team responsible for maintaining, supporting, and enhancing Linux-based platforms across a highly secure environment.

    As a Linux Engineer, you'll be responsible for the administration, maintenance, and optimisation of enterprise Linux environments, ensuring systems remain secure, available, and operating at peak performance.

    Key responsibilities include:

    • Administering and supporting enterprise Linux environments.

    • Installing, configuring, patching, and maintaining Linux servers.

    • Troubleshooting complex infrastructure and operating system issues.

    • Supporting system upgrades, migrations, and platform improvements.

    • Working closely with infrastructure, network, security, and project teams.

    • Monitoring system health, performance, and availability.

    • Producing and maintaining technical documentation and operational procedures.

    • Ensuring compliance with MOD security policies and operational standards.

    Essential Experience

    • Current DV (Developed Vetting) clearance.

    • Previous MOD or Defence sector experience is essential.

    • Strong hands-on experience administering Linux operating systems (Red Hat Enterprise Linux, Rocky Linux, Oracle Linux, Ubuntu, or similar).

    • Experience with Linux system installation, configuration, patching, and troubleshooting.

    • Good understanding of enterprise infrastructure, including storage, virtualisation, networking, and server technologies.

    • Experience working within highly secure or mission-critical environments.

    If you'd like to discuss this Linux Engineer role in more detail, please send your updated CV to (url removed) and I will get in touch.

    Posted on October 4, 2026

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