Linux Infrastructure Engineer

Company cultures & job summary

Our client is a leading cyber security and critical national infrastructure organisation, supporting governments and major institutions across the globe with some of the most sensitive and important technology programmes in operation today.

Joining a highly specialised security team, you'll play a key role in delivering and supporting secure, mission-critical systems. Working alongside experienced engineers and architects, you'll contribute to complex projects that have a real-world impact, utilising modern technologies across Automation, Enterprise Systems Management (ESM), and CI/CD environments.

To be successful in this role, you'll bring strong Linux administration experience, including security hardening, operating system upgrades, and patch management. You'll also have experience deploying and configuring multi-vendor applications, alongside a solid background in network and infrastructure monitoring tools. A strong understanding of SNMP, syslog, and IP networking is essential, as is the ability to troubleshoot and support complex technical environments.

If you're looking to work on challenging, high-impact projects within a secure and technically advanced environment, we'd be keen to hear from you. Apply today to find out more.

·        Design, implement, test, and support third-party applications within secure network management environments.

·        Integrate software and infrastructure components across operating systems to deliver reliable, end-to-end technical solutions.

·        Review existing platform designs and implement enhancements to ensure systems remain compliant with support and lifecycle requirements.

·        Liaise with technology vendors to manage software releases, updates, and ongoing application performance.

·        Develop and maintain comprehensive technical documentation, including high-level designs, low-level designs, and build procedures.

·        Work with Automation, Enterprise Systems Management (ESM), and CI/CD technologies to improve operational efficiency and service delivery.

·        Enforce security best practices through system hardening, vulnerability remediation, and patch management across Linux platforms.

·        Strong expertise in Linux administration, including system hardening and security configuration in line with recognised industry standards.

·        Proven experience deploying, upgrading, and managing applications from multiple vendors within complex enterprise environments.

·        In-depth understanding of SNMP, syslog, and IP networking, with excellent diagnostic and troubleshooting capabilities.

·        Experience implementing and supporting network, infrastructure, and systems monitoring solutions.

·        Demonstrated ability to integrate applications with security platforms, monitoring tools, Active Directory services, and backup technologies.

·        Good knowledge of infrastructure architecture, solution design, and end-to-end systems integration.

·        Hands-on experience working with CI/CD pipelines, automation frameworks, and infrastructure-as-code principles.

·        Strong technical documentation skills, with the ability to produce detailed high-level designs, low-level designs, and system build documentation.

The client would also like to see some of the below, but this is not essential:

·        Experience working with SAN storage platforms and associated storage networking technologies.

·        Knowledge of IP network architecture and design, including the configuration and administration of Juniper and Cisco networking equipment.

·        Strong Microsoft Active Directory expertise, including the creation, management, and deployment of Group Policy Objects (GPOs).

·        Experience integrating systems with monitoring platforms, patch management tools, and endpoint security/antivirus solutions.

·        Understanding of Public Key Infrastructure (PKI), with experience supporting the design, implementation, and deployment of PKI environments.

• Annual bonus up to 10%.

• Pension up to 5% Employee/10% Employer.

• Private Medical Cover.

• Dental Insurance.

• Health Assessment.

• Life Assurance.

Our client is committed to providing a diverse and inclusive workplace and welcomes applications from all backgrounds.

Part-time opportunities/flexible working is available to suit individual needs.

RECOMMEND A FRIEND: If you have professional friends/colleagues who would be interested in one of our roles and our excellent levels of service too, we'd like to recognise your recommendations with a 'thank you' of our own. For every friend you refer who then starts a role through Datasource either Contract or Permanent, we will send you £200 of Love to Shop Gift Vouchers & gift your friend £100 in Love to Shop Gift Vouchers as well!

You will be required to hold a minimum of DV Clearance. If you do not hold an active DV Clearance, please familiarise yourself with the vetting process before applying.

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