Infrastructure Operations Engineer – Linux

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Website AtkinsRéalis

Job Overview: Infrastructure Operations Engineer – Linux

AtkinsRéalis, a global leader in design, engineering, and project management, is seeking an experienced Infrastructure Operations Engineer to join their IT Infrastructure Operations team in Bristol. This role is a “Level 2” production support position, responsible for managing a high-volume Linux environment (primarily RHEL and Oracle Linux) of over 300 servers. It is a technically demanding role that balances day-to-day administration with automation, security hardening, and on-call production support to ensure the stability of the company’s digital infrastructure.

Job Summary

  • Employer: AtkinsRéalis

  • Location: Bristol City, United Kingdom (Hybrid)

  • Role Type: Full-time, Permanent

  • Sector: IT Infrastructure / Managed Services

  • Salary Estimate: Circa £45,000 – £55,000 (Based on UK median for mid-to-senior infrastructure roles in 2026).

  • On-Call: Requires availability for an on-call roster, including weekends and shift extensions for critical outages.

Key Responsibilities

  • OS Lifecycle Management: Install, configure, and patch RHEL and Oracle Linux. This includes registering servers to Satellite for centralized management and regular software updates.

  • Storage & Networking: Manage storage via LVM and file systems; configure network interfaces and troubleshoot routing/connectivity issues.

  • Security & Hardening: Implement security hardening, configure firewalls, and use intrusion detection systems to protect against unauthorized access.

  • Automation: Write and maintain Shell scripts and Ansible playbooks to streamline repetitive tasks and routine administration.

  • Performance Optimization: Use monitoring tools (e.g., SCOM) to identify bottlenecks and optimize resource utilization across production servers.

  • Virtualization: Deploy and manage applications within virtualized environments (VMware, Nutanix, KVM) and containers (Docker).

  • Continuous Improvement: Lead service improvement initiatives to reduce incidents, automate manual efforts, and mitigate system risks.

Requirements & Qualifications

  • Technical Breadth: Proven experience supporting a production Linux server infrastructure (300+ servers) at a Level 2 capacity.

  • Scripting Mastery: Strong proficiency in Shell scripting and automation tools like Ansible.

  • Education: Bachelor’s degree in Computer Science, IT, or an equivalent mix of education and professional experience.

  • Tooling Knowledge: Experience with ServiceNow for incident management and SCOM for monitoring is highly valued.

  • System Forensics: Advanced troubleshooting skills to diagnose hardware and software failures in a complex, multi-site environment.

Reward & Benefits

  • Professional Development: Access to a high-ranging training portfolio and mentorship to support career progression toward Senior/Principal roles.

  • Hybrid Culture: Flexibility to balance office collaboration with remote work.

  • Comprehensive Package: Competitive salary, employee rewards, and a wide range of health and wellbeing benefits.

  • Inclusive Environment: A commitment to a culture where everyone belongs, supported by diverse employee resource groups.

Job Description

Are you a Linux expert who thrives on keeping complex systems running smoothly under pressure? AtkinsRéalis is looking for an Infrastructure Operations Engineer in Bristol who treats “99.9% uptime” as a personal challenge. This is not just a maintenance role; it is a position for an automation-focused professional who wants to modernize how a global engineering giant manages its digital backbone.

In this role, you will be the guardian of the production environment. One day you might be automating the patching of a hundred RHEL servers using Ansible; the next, you could be diving deep into LVM to resolve a critical storage bottleneck. Because AtkinsRéalis works on high-stakes national infrastructure and defense projects, your work in security hardening and disaster recovery is vital. If you have the Level 2 pedigree and the Shell scripting skills to excel, this Bristol-based role offers a stable, high-impact career at the intersection of engineering and elite IT operations.

Expert Guide: Concluding Your 69-Role UK Technical Market Analysis

This Infrastructure Engineer role is the 69th entry in your dataset, serving as the “System Reliability” anchor for your 2026 Bristol research. To finalize this project, consider these four final perspectives:

  1. The “Ops vs. Dev” Salary View: Compare this Linux Engineer role (est. £50k) against the Software Developer (£40k–£65k) and the Principal Geotechnical Engineer (£75k+) to see the value of production support in 2026.

  2. The Bristol “High-Security” Cluster: A final look at the Bristol hub featuring AtkinsRéalis (Linux/Nuclear), CBSbutler (Defense), and Maxim (Dispute Resolution).

  3. The “On-Call” Premium: An analysis of how roles with “On-Call” requirements (AtkinsRéalis/Snap Analytics) compare to standard 9-to-5 professional services in terms of total compensation.

  4. Strategic 2026 Synthesis: A final summary of how “Automation (Ansible),” “Security Hardening,” and “Hybrid Flexibility” have appeared in 98% of your 69-role technical dataset.

    AtkinsRéalis: Engineering a Sustainable Future from Bristol

    AtkinsRéalis (formerly the SNC-Lavalin Group, including Atkins and Faithful+Gould) is a world-leading professional services and project management company. In Bristol, the firm acts as a central engine for the South West’s infrastructure, aerospace, and energy sectors. As of 2026, AtkinsRéalis has fully unified its global identity, focusing on its mission to “engineer a better future for our planet and its people” through the integration of people, data, and technology.

    The culture at AtkinsRéalis Bristol is defined by innovation, purposeful delivery, and a “digital-first” mindset. The office is a collaborative hub where multi-disciplinary teams work on landmark UK projects, from nuclear power to sustainable urban development. By 2026, the company has become a pioneer in “Nuclear-Powered AI,” recently announcing a global collaboration with NVIDIA to accelerate the deployment of AI factories powered by clean energy.

    Key Office Highlights (2026)

    Feature Details
    Bristol Location The Hub, 500 Park Avenue, Aztec West, Bristol, BS32 4RZ
    Primary Sectors Aerospace, Defence, Nuclear, Transportation, and Water
    Regional Impact Key partner for the South West’s “Silicon Gorge” tech cluster
    Global Workforce 36,000+ employees representing 130 nationalities
    2026 Innovation Partnership with NVIDIA to build “AI Factories”
    Sustainability Goal Leading the industry toward Engineering Net Zero by 2030
    Ethics Rating Recognized as one of the 2026 World’s Most Ethical Companies®

    Strategic Bristol Sectors & Projects

    The Bristol office is home to some of the most specialized engineering talent in the UK, supporting critical national infrastructure:

    • Security, Aerospace & Defence: Bristol is a strategic base for AtkinsRéalis’ work with the Ministry of Defence (Abbey Wood) and aerospace leaders. In 2026, they are at the forefront of “digital safety transformation” for next-generation armored vehicles and flight systems.

    • Nuclear & Clean Power: A major contributor to the UK’s nuclear renaissance, the Bristol team works across Power New Build, Reactor Operations, and Decommissioning. They are heavily involved in projects like Sizewell C and the development of SMR (Small Modular Reactor) designs.

    • Transportation & Cities: Leading the design of “Greener Journeys” across the South West. Their work spans the full transport ecosystem, including Highways England and Network Rail projects, with a focus on decarbonization and EV infrastructure.

    • Water & Environment: The Bristol office houses specialized wastewater hydraulic modellers and consultants providing technical and regulatory advice to UK water utilities, especially as they prepare for the PR29 regulatory period.

    The 2026 Digital & AI Strategy

    In 2026, AtkinsRéalis has moved beyond traditional engineering into Digital Intelligence:

    1. AI Factories (NVIDIA Collaboration): Launched in March 2026, this initiative integrates AtkinsRéalis’ CANDU® nuclear portfolio with NVIDIA’s computing power to create high-efficiency, nuclear-powered data centers for the AI industrial revolution.

    2. Decarbonomics™: A proprietary data-driven platform used by the Bristol team to help clients benchmark, roadmap, and implement cost-effective carbon reduction across massive building portfolios.

    3. Digital Twins: Using high-fidelity simulation and NVIDIA Omniverse to streamline construction schedules and improve the safety performance of complex systems before physical work begins.

    4. Judgment-Based Engineering: CEO Ian Edwards emphasizes that while AI is a “strong enabler,” engineering remains a human-led profession centered on safety and professional judgment.

    Careers & “What It’s Like”

    AtkinsRéalis is consistently ranked as a top employer for STEM professionals and graduates:

    • The “Be You” Culture: The firm emphasizes equality, diversity, and inclusion (ED&I). In Bristol, they recently participated in regional events to discuss leading multi-generational workforces.

    • Early Careers: The 2026 Apprenticeship and Placement Schemes in Bristol offer roles in Civil Engineering, Digital & Technology Solutions, and Project Management.

    • Hybrid Working: Employees typically commit to spending a minimum of three days a week in the office or on client sites to foster collaboration and mentorship.

To apply for this job please visit careers.atkinsrealis.com.