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- Tasks: Join our team as a Linux Administrator, solving complex system issues and enhancing cloud strategies.
- Company: CGI is a top-rated employer, recognised for its commitment to innovation and inclusivity.
- Benefits: Enjoy competitive salary, private healthcare, pension scheme, and a supportive community.
- Why this job: Work with cutting-edge technology in a dynamic environment that values growth and collaboration.
- Qualifications: 2+ years of Linux admin experience; strong command-line skills and cloud knowledge preferred.
- Other info: Must hold UK Security Clearance; on-site work in London required.
The predicted salary is between 36000 - 60000 £ per year.
Linux Administrator (DV Security Clearance), London
Client:
CGI
Location:
London, United Kingdom
Job Category:
Other
–
EU work permit required:
Yes
Job Reference:
cb0ee1123d70
Job Views:
17
Posted:
12.08.2025
Expiry Date:
26.09.2025
Job Description:
Position Description:
CGI’s Space, Defence, and Intelligence business unit is dedicated to delivering cutting-edge technical solutions that address the most complex challenges faced by government agencies. Our mission-critical systems are custom-built to ensure security, reliability, and innovation, helping our clients protect the nation and its people. We are currently seeking a Linux Admin to join our Secure Innovation & Advisory team, working collaboratively with clients to deliver impactful solutions.
CGI was recognised in the Sunday Times Best Places to Work List and has been named one of the ‘World’s Best Employers’ by Forbes magazine. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a member not just an employee. We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant. Join us and you’ll be part of an open, friendly community of experts. We’ll train and support you in taking your career wherever you want it to go.
This role offers an exciting opportunity to engage with groundbreaking technologies in a dynamic and rewarding environment. At CGI, we are deeply committed to the growth and development of our team members, offering extensive learning opportunities to help you stay at the forefront of an ever-evolving technology landscape. Our culture values innovation, collaboration, and ownership, making it an ideal environment for self-motivated individuals to thrive.
Our roles are only available if you hold a UK Security Clearance and are a sole UK National due to the secure nature of the project. You will either hold a higher level clearance or be willing to obtain it. Any individual without security clearance is welcome to apply and will always be considered for this or wider opportunities in CGI, where appropriate.
This role will require you to work on site in London 5x per week.
Your future duties and responsibilities:
-Diagnosing and solutioning problems with the system in production and non-prod
– Increase the efficiency of system deployments, freeing up more time for development opportunities
– Assisting the client in their \’Journey to the cloud\’ understanding Hybrid cloud and migration strategies
– Facilitate the journey from Isolated and zone based networks to \”Zero Trust Implementation\”
Required qualifications to be successful in this role:
Minimum 2 years of hands-on experience as a Linux Systems Administrator, with proven expertise in managing and maintaining enterprise-grade Linux environments (e.g., Red Hat, CentOS, Ubuntu).
Strong knowledge of Linux command-line utilities, shell scripting (Bash, etc.), and system administration tasks including user and group management, file system permissions, software installations, and service configurations.
Experience in configuring and maintaining Linux servers, including performance tuning, system monitoring, patch management, and automation of routine tasks.
Familiarity with troubleshooting system issues, analysing logs, and performing root cause analysis for outages or performance degradation.
Working knowledge of networking concepts (e.g., TCP/IP, DNS, firewalls) in a Linux environment.
Experience with security hardening, user authentication, and compliance configurations for secure systems operation.
Exposure to cloud environments (e.g., AWS, Azure, GCP) or virtualised infrastructure (e.g., VMware, KVM) in a Linux context is advantageous.
Familiarity with infrastructure as code tools (e.g., Ansible, Terraform) or configuration management platforms is a plus.
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Created on 12/08/2025 by TN United Kingdom
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Linux Administrator (DV Security Clearance) employer: CGI
Contact Detail:
CGI Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Linux Administrator (DV Security Clearance)
✨Tip Number 1
Familiarise yourself with the specific technologies mentioned in the job description, such as Red Hat, CentOS, and Ubuntu. Having hands-on experience with these systems will not only boost your confidence but also demonstrate your capability to potential employers.
✨Tip Number 2
Engage with online communities or forums related to Linux administration. Networking with professionals in the field can provide insights into the latest trends and challenges, and may even lead to referrals for job opportunities.
✨Tip Number 3
Consider obtaining additional certifications relevant to Linux administration and cloud environments, such as CompTIA Linux+ or AWS Certified Solutions Architect. These credentials can set you apart from other candidates and show your commitment to professional development.
✨Tip Number 4
Prepare for potential technical interviews by practising common Linux administration scenarios and troubleshooting exercises. Being able to demonstrate your problem-solving skills in real-time can significantly enhance your chances of landing the job.
We think you need these skills to ace Linux Administrator (DV Security Clearance)
Some tips for your application 🫡
Tailor Your CV: Make sure your CV highlights your experience as a Linux Systems Administrator. Focus on relevant skills such as managing enterprise-grade Linux environments, shell scripting, and system administration tasks. Use specific examples to demonstrate your expertise.
Craft a Strong Cover Letter: Write a cover letter that reflects your passion for the role and the company. Mention your hands-on experience with Linux systems, your understanding of cloud migration strategies, and how you can contribute to CGI's mission in the Space, Defence, and Intelligence sector.
Highlight Security Clearance: Since this position requires DV Security Clearance, clearly state your current security clearance status in your application. If you are willing to obtain it, mention that as well to show your commitment to meeting the job requirements.
Showcase Continuous Learning: Emphasise any ongoing training or certifications related to Linux administration, cloud technologies, or security practices. This demonstrates your commitment to professional growth and aligns with CGI's values of innovation and development.
How to prepare for a job interview at CGI
✨Showcase Your Linux Expertise
Make sure to highlight your hands-on experience with various Linux distributions like Red Hat, CentOS, and Ubuntu. Be prepared to discuss specific tasks you've managed, such as user management, software installations, and system configurations.
✨Demonstrate Problem-Solving Skills
Prepare examples of how you've diagnosed and resolved issues in production environments. Discuss your approach to troubleshooting, including how you analyse logs and perform root cause analysis for outages or performance degradation.
✨Familiarity with Cloud Technologies
Since the role involves assisting clients on their 'Journey to the cloud', be ready to talk about your experience with cloud environments like AWS, Azure, or GCP. Mention any relevant projects where you've implemented hybrid cloud or migration strategies.
✨Understand Security Protocols
Given the nature of the role, it's crucial to demonstrate your knowledge of security hardening and compliance configurations. Be prepared to discuss your experience with user authentication and secure systems operation, especially in relation to the Zero Trust Implementation.
