Linux System Administrator L1

About the Role

IDEMIA Public Security is seeking a Linux System Administrator L1. This role involves being a core team member focused on infrastructure deployment for production-grade environments, with potential DevOps skills for automation and production monitoring.

Key Responsibilities

• Analyzes, troubleshoots, and resolves tickets escalated by support levels 1 or 2 within SLA or internal OLA.
• Reproduces and documents customer problems, escalating them to relevant solution or product development teams.
• Provides input on product and customer-specific functionality, configuration, and usage.
• Designs corrective action plans or local workarounds to resolve issues within SLA.
• Documents ticket resolutions and ensures proper communication to customers on progress.
• Maintains support documentation.
• Carries out on-site administration and preventive maintenance activities.
• Performs system upgrades at customer premises during post go-live periods.
• Ensures procedures are correctly implemented.
• Maintains IT infrastructure and backend components, including hardware and software.
• Generates and shares monthly support reports with customers and the HO team.

Requirements & Tech Stack

• Familiarity with best practices of infrastructure (on premises) deployment for production-grade environments.
• Good-to-have DevOps skills to automate application deployment/management for deployed environments.
• Experience with production monitoring.
• In-depth knowledge of Linux OS platforms (RHEL & CentOS).
• Strong troubleshooting skills.
• Understanding of Linux Filesystem, file permissions & ownership.
• Knowledge of the boot process & control.
• Knowledge of Run levels and troubleshooting issues related to specific services.
• OS performance checks & troubleshooting performance issues.
• In-depth knowledge of LVM/VG/PV and troubleshooting skills.
• ACL management.
• Understanding of crontab and scheduling of jobs.
• Multipath configuration and management.
• Experience with Network File Sharing Services; DNS, NFS, and CIFS.
• Network configuration/management & troubleshooting (configuring bonding, vlan tagging).
• Patching through Satellite.
• Client-side yum configuration.
• Satellite server configuration & management.
• Knowledge of different hardware architectures (HP, Dell servers) and implementation.
• Management of Linux servers and hypervisors like OVM server, VMware ESXi.