System Administrator - Linux & Cloud Infrastructure

CGI Group Inc.; Reading; On-site; GBP 42,000 - 60,000; Full time

Benefits offered by this job

Insurance coverage

Medical benefits

Pension plan

Member Assistant Programme

Flexible time off

Job summary

CGI Group Inc. in Reading is seeking a System Administrator to own day-to-day monitoring and first-line support of secure cloud infrastructure, ensuring availability and reliability of critical systems.

You will perform health checks, troubleshoot incidents, use Grafana and Kibana, participate in a 24x7 on-call rota, and collaborate with CGI colleagues and tech teams to maintain a secure, high-performance service.

Qualifications

• Linux: Practical experience administering, supporting or troubleshooting Linux environments.
• Grafana: Experience using Grafana to review or create dashboards and analyse system performance.
• Kibana: Experience using Kibana to investigate logs, alerts and operational issues.
• Monitoring: Ability to interpret system metrics, logs and infrastructure health information.
• Troubleshooting: Proven ability to gather diagnostic information, investigate issues and determine appropriate next steps.
• Customer Support: Strong customer service and communication skills within a technical support environment.
• On-Call Support: Willingness and ability to participate in a 24x7 on-call rota.
• Agile: Experience working within an Agile environment would be advantageous.

Responsibilities

• Take ownership of day-to-day monitoring and first-line support of secure cloud infrastructure.
• Carry out daily health checks, investigate alerts and use tools to analyse dashboards, logs and metrics.
• Troubleshoot incidents and resolve first-line issues, escalating when needed.
• Participate in a 24x7 on-call rota and respond to critical incidents outside standard hours.
• Collaborate with CGI colleagues and technical teams to improve ways of working and service reliability.

Skills

Linux

Grafana

Kibana

Monitoring

Troubleshooting

Customer Support

On-Call Support

Agile

Tools

Grafana

Kibana

Job description

In this role, you will take ownership of the day-to-day monitoring and first-line support of secure cloud infrastructure, helping maintain the availability, performance and reliability of critical systems. You'll carry out daily health checks, proactively investigate alerts and use tools such as Grafana and Kibana to analyse dashboards, logs and system metrics.

You'll apply your problem-solving skills to troubleshoot incidents, resolving issues where possible and gathering the technical information needed for efficient escalation when additional expertise is required. Working alongside CGI colleagues and technical teams, you'll have opportunities to share ideas, improve ways of working and expand your knowledge. You'll also participate in a 24x7 on-call rota, responding to critical incidents outside standard working hours when required.

Monitor & Maintain: Conduct daily system and infrastructure health checks, monitoring availability and performance.

Investigate & Resolve: Identify alerts and incidents, perform initial troubleshooting and resolve first-line issues.

Analyse & Improve: Use Grafana, Kibana, dashboards, logs and system metrics to identify potential problems and support continuous improvement.

Diagnose & Escalate: Gather complete diagnostic information, error details and system context before escalating complex issues to technical teams.

Support & Collaborate: Deliver responsive customer support while working closely with technical colleagues to restore services efficiently.

Respond & Protect: Participate in the 24x7 on-call rota and respond to critical incidents when required.

You'll bring practical systems administration or infrastructure support experience, with a strong grounding in Linux and confidence using monitoring and observability tools. You should be comfortable investigating technical issues methodically, interpreting system information and working collaboratively to deliver a reliable service. You'll be supported by experienced colleagues while having the scope to take ownership of issues and develop creative solutions.

Linux: Practical experience administering, supporting or troubleshooting Linux environments.

Grafana: Experience using Grafana to review or create dashboards and analyse system performance.

Kibana: Experience using Kibana to investigate logs, alerts and operational issues.

Monitoring: Ability to interpret system metrics, logs and infrastructure health information.

Troubleshooting: Proven ability to gather diagnostic information, investigate issues and determine appropriate next steps.

Customer Support: Strong customer service and communication skills within a technical support environment.

On-Call Support: Willingness and ability to participate in a 24x7 on-call rota.

Agile: Experience working within an Agile environment would be advantageous.

oin CGI as a System Administrator and help keep secure, business-critical cloud infrastructure performing reliably for our clients. Based on site in Reading, you'll play an important role in monitoring system health, identifying potential issues and providing responsive first-line support within a highly secure environment. You'll have the autonomy to investigate alerts, use monitoring insights to solve problems and contribute to service improvements, while collaborating with experienced technical teams when more complex challenges arise. It's an opportunity to build your expertise across Linux and cloud infrastructure, contribute ideas that strengthen service performance, and develop your career within a supportive CGI community where your contribution has a visible impact., 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.

That same commitment to fairness extends to how we use technology. To support our recruitment team, AI tools may be used to help assess applications though they never replace human judgement. All hiring decisions remain entirely in the hands of our recruitment professionals.

Come join our team-one of the largest IT and business consulting services firms in the world.

Discover CGI

London, England, United Kingdom

> 1000 employees

IT services

We are a global business with 91,500 professionals across hundreds of locations worldwide, providing end-to-end IT and business process services that drive our clients' businesses. In the UK alone, we have around 6,000 member-partners working across 19 towns and cities, doing everything from writing complex code to designing sophisticated software solutions. The work we do powers some of the most ambitious projects that touch the lives of many. Our approach sets us apart, characterised by our proximity model, international presence, expertise, and operational excellence. We organise our operations within metro markets where our clients have concentrated footprints, empowering our local teams to build trusted, in-person relationships. As you build your career here, you'll develop your skills, share your insights, and work side-by-side with colleagues and clients on innovative solutions that address the most complex issues. Our commitment to ownership, flexibility, and being approachable makes us easy to do business with. Join us, and together, as owners, let's turn meaningful insights into action to meet the needs and balance the interests of our clients, shareholders, communities, and each other.

Benefits

• Insurance coverage
• Medical benefits
• Pension plan
• Member Assistant Programme
• Check4Cancer
• Flexible time off
• Share Purchase Plan
• Member discounts
• Dental benefits
• Vision benefits
• Profit Participation Plan
• Health and Wellbeing Programme

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. This is an office based position.