At CGI, we help clients solve complex challenges through secure, innovative technology solutions that deliver real-world impact. As an Infrastructure Engineer, you will play a key role in maintaining and enhancing critical environments, ensuring system stability, security, and performance. Working within a collaborative and supportive team, you will have the opportunity to take ownership of technical challenges, contribute to meaningful outcomes, and help drive the success of a high-profile programme. This is an excellent opportunity to apply your infrastructure expertise in a secure environment while developing your skills and making a lasting difference.
CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named a UK ‘Best Employer’ by the Financial Times. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a CGI Partner 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.
Due to the secure nature of the programme, you will need to hold UK Security Clearance or be eligible to go through this clearance.
The role is based on site 5 days per week in Reading Berkshire
Your future duties and responsibilities
In this role, you will support the resolution of a backlog of infrastructure issues, implement system changes and security patches, and respond to incidents across secure environments.
You will work within air-gapped reference and development environments based in Reading, helping to maintain the reliability, security, and operational effectiveness of critical systems.
You will take ownership of technical issues from investigation through to resolution, working closely with stakeholders to implement approved changes and maintain accurate documentation. This role offers the opportunity to contribute directly to the stability and continuous improvement of a secure infrastructure estate while working as part of a collaborative and knowledgeable team.
Key responsibilities:
- Investigate & Resolve system incidents and infrastructure problems
- Implement & Deliver approved system changes and security updates
- Maintain & Improve system reliability and operational performance
- Document & Manage change requests and technical activities
- Support & Collaborate with stakeholders across the programme
- Monitor & Respond to infrastructure incidents as they arise
Required qualifications to be successful in this role
To be successful in this role, you should have strong infrastructure and systems management experience, with the ability to troubleshoot technical issues and deliver effective solutions within secure environments. You should be comfortable working independently, managing priorities, and maintaining high standards of documentation and operational support.
Essential qualifications and experience:
- Strong systems management and infrastructure support experience
- Proven ability to investigate and resolve technical incidents and problems
- Experience implementing system changes and security patches
- Ability to create and maintain clear technical documentation
- Strong analytical and troubleshooting skills
- UK National with current SC Clearance or eligibility to obtain SC Clearance
Desirable skills:
- Windows system administration
- VMware vCenter / vSphere
- Active Directory
- SCCM
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Together, as owners, let’s turn meaningful insights into action.
Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential because…
You are invited to be an owner from day 1 as we work together to bring our Dream to life. That’s why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company’s strategy and direction.
Your work creates value. You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.
You’ll shape your career by joining a company built to grow and last. You’ll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.
Come join our team—one of the largest IT and business consulting services firms in the world.
