About Atos Group
Atos Group is a global leader in digital transformation with c. 70,000 employees and annual revenue of c. €10 billion, operating in 67 countries under two brands—Atos for services and Eviden for products. European number one in cybersecurity, cloud and high-performance computing, Atos Group is committed to a secure and decarbonised future and provides tailored AI‑powered, end‑to‑end solutions for all industries. Atos is a SE (Societas Europaea) and listed on Euronext Paris.
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.
Core Activities
Platform Management & Administration
* Install, configure, and maintain AIX and Linux systems (RHEL, SUSE, Ubuntu).
* Manage system updates, patches, and lifecycle activities; perform performance tuning, troubleshooting and optimisation.
* Monitor system health, availability and capacity using enterprise tools; manage user access and system reporting.
Infrastructure Operations
* 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.
Automation & Scripting
* Develop and maintain automation scripts using Shell, Bash, Python or Ansible.
* Support configuration management, infrastructure‑as‑code and system standardisation.
* Maintain OS security baselines, hardening, patching and vulnerability remediation; support audit readiness and compliance frameworks (ISO27001, PCI‑DSS, etc.).
Documentation & Process
* Produce and maintain technical documentation, system designs and procedures.
* Contribute to continuous improvement within the infrastructure function.
Project Involvement
* Participate in infrastructure upgrades, migrations and transformation initiatives.
* Work closely with cross‑functional teams (network, storage, application, cloud).
Out Of Hours Requirements
* Take part in an on‑call rota as required.
* Provide occasional overtime support during planned or unplanned work.
Technical Skills
* Strong hands‑on experience with IBM AIX administration, including PowerVM, LPAR/VIOS management, NIM server administration, AIX patching and performance tuning.
* Solid experience with Linux (RHEL preferred, but other enterprise distros accepted).
* Proficiency in shell scripting (KSH, Bash) and automation (Ansible or similar).
* Understanding of TCPIP networking fundamentals.
* Knowledge of storage technologies (SAN, NAS, multipathing).
* Experience with backup/restore tools and DR procedures.
* Experience working within enterprise server environments.
Education & Qualifications
* Degree in Computer Science, Engineering, or related field (or equivalent experience).
* Professional certifications preferred but not required.
Security Clearance
* SC security clearance is required.
Location: UK based.
Benefits
* Pension Scheme – contributions matched up to 10%.
* Private medical cover.
* Income Protection.
* Life Assurance.
* 25 days paid leave + National Holidays.
* Flex benefits programme.
Diversity, Equity & Inclusion
Here at Atos, diversity and inclusion are embedded in our DNA. As a Disability Confident employer, we encourage applications from all applicants, especially differently abled applicants. We are committed and willing to make reasonable adjustments to the application and assessment process to accommodate your needs.
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