As a Unix/Linux Engineer, you will join the Infrastructure Operations team, supporting and evolving enterprise AIX and Linux platforms. You’ll play a key role in ensuring high availability, performance, and security across critical systems, while contributing to automation and modernization initiatives.

Working closely with engineers, developers, and customers, you will design, implement, and support robust infrastructure solutions, helping deliver stable and resilient platforms for business-critical applications across the UK&I.

• Install, configure, and maintain AIX and Linux systems (RHEL, SUSE, Ubuntu) systems.
• Manage system updates, patches, and lifecycle activities; perform system performance tuning, troubleshooting, and optimisation.
• Monitor system health, availability, and capacity using enterprise tools; manage user access and system reporting.

• Maintain filesystems, volume management, and storage integration (e.g., LVM, ASM, SAN).
• Administer logical partitions (LPARs), VIOS, and PowerVM for AIX environments.
• Build and support server environments for on‑prem and/or cloud-hosted workloads; provide 2nd/3rd line support for incidents and problems within SLAs.

• Develop and maintain automation scripts using Shell, Bash, Python, or Ansible.
• Support configuration management, infrastructure-as-code, and system standardisation.
• Security & Compliance; maintain OS security baselines, hardening, patching, and vulnerability remediation; support audit readiness and compliance frameworks (ISO27001, PCI-DSS, etc.).

• Produce and maintain technical documentation, system designs, and procedures.
• Contribute to continuous improvement within the infrastructure function.

• Participate in infrastructure upgrades, migrations, and transformation initiatives.
• Work closely with cross-functional teams (network, storage, application, cloud).

• Take part in an on‑call rota as required.
• Provide occasional overtime support during planned or unplanned work.

• Strong hands-on experience with IBM AIX administration, including:

• Solid experience with Linux (RHEL preferred, but other enterprise distros accepted).
• Proficiency in shell scripting (KSH, Bash) and automation (Ansible or similar).
• Understanding of:

• Experience working within enterprise server environments.

• Degree in Computer Science, Engineering, or related field (or equivalent experience).
• Professional certifications preferred but not required.

• SC security clearance is required.

• Pension Scheme - contributions matched up to 10%
• Private medical cover
• Income Protection
• Life Assurance
• 25 days paid leave + National Holidays
• Flex benefits program