Administrateur système Linux (senior)

Missions

Responsibilities

Work as an integral member of an agile-organized team delivering Unix operational support and infrastructure projects

Follow up on client requests and incidents, acting as a trusted business partner with full transparency and accountability

Participate in Follow-the-Sun support, covering Europe and Asia

Propose innovative, scalable, and industrialized solutions to automate repetitive tasks and improve overall team efficiency

Actively participate in enterprise-wide automation initiatives by collaborating with multiple feature teams

Manage activities in accordance with ITIL framework (Change Management, Incident/Request Management)

Onboard team operational routines and participate in planned overtime operations at least once per month

Work closely with the Bangalore-based Level 1 support team to continuously optimize service delivery

Strengthen expertise in agile practices, with Scrum at the core of team organization

Contribute to API design and development to automate IT operations (strong Python expertise required)

Collaborate in the design and delivery of feature team products, providing technical insight and architectural perspective

Support a large-scale environment of 2,500+ servers

Profile

Requirements

Mandatory

Advanced expertise in Linux Server Operating Systems (RHEL): administration, lifecycle management, hardening, and performance tuning

Strong troubleshooting skills at kernel, process, memory, and I/O levels

Experience with monitoring and observability tools (e.g., Zabbix, Prometheus, custom health checks)

Development and scripting skills (Python, Bash, Ansible, Puppet)

Experience with production-grade automation, API integrations, and tooling

Knowledge of volume management (LVM, multipathing) and filesystem tuning (XFS, ext4)

Puppet expertise: modular design, Hiera, environment management, large-scale configuration enforcement

Experience with cloud-based technologies (hybrid architectures, provisioning, integration)

Proficiency with Red Hat Identity Management (IdM), LDAP integration, authentication and authorization workflows

Knowledge of enterprise hardware (HP/DELL x86), including firmware, BIOS, RAID

Strong understanding of TCP/IP and related services (LDAP, DHCP, DNS, SMTP, NFS) and troubleshooting of complex dependencies

Experience with enterprise backup platforms (e.g., NetBackup), restore validation, and disaster recovery readiness

Knowledge of SAN, Fibre Channel storage, NFS, and multipath I/O configuration

Understanding of high availability clustering and failover mechanisms

Experience with patch management, compliance, and vulnerability remediation

Strong skills in incident root cause analysis (RCA) and production problem management

Experience contributing to open-source projects (e.g., GitHub), including code reviews and documentation

Bilingual (required)

Nice to have

Experience with Red Hat Satellite (content views, lifecycle environments, patch management at scale)

Knowledge of Elastic Stack (Elasticsearch, Kibana, Logstash) for centralized logging

Experience with Software Factory tooling (e.g., Jenkins, CI/CD pipelines) and Continuous Delivery practices

Knowledge of OpenStack (compute, networking, storage, operations)

CGI provides a reasonable estimate of the salary range for this position. The calculation of this range depends on various factors, including skill level, geographic market, experience, education, as well as professional licenses and certifications. Compensation decisions are based on the specifics of each individual case. A reasonable estimate of the salary range for this position is between $80,000 and $115,000.

Your future duties and responsibilities

Required Qualifications To Be Successful In This Role

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.

At CGI, we value the strength that diversity brings and are committed to fostering a workplace where everyone belongs. We collaborate with our clients to build more inclusive communities and empower all CGI partners to thrive. As an equal-opportunity employer, being able to perform your best during the recruitment process is important to us. If you require an accommodation, please inform your recruiter.

To learn more about accessibility at CGI, contact us via email. Please note that this email is strictly for accessibility requests and cannot be used for application status inquiries.

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