Linux & Data Center Systems Administrator

Description

The Linux & Data Center Systems Administrator is responsible for the administration, availability, security, and ongoing maintenance of Linux-based systems, virtualization platforms, and physical data center infrastructure.

The role combines Linux system administration, virtualization, hardware management, troubleshooting, automation, patching, backup operations, and hands-on data center activities. The position works closely with infrastructure, network, security, and other IT teams to maintain reliable and secure production environments.

Linux Systems Administration

• Administer and maintain Linux operating systems across production and non-production environments.
• Troubleshoot operating system, application, performance, storage, networking, and service-related issues.
• Perform Linux OS installation, configuration, upgrades, and lifecycle management.
• Manage OS patching, security updates, and remediation activities.
• Configure and maintain system services, packages, repositories, users, permissions, and access controls.
• Manage backup and recovery procedures for Linux systems.
• Perform backup validation and support system recovery when required.
• Develop and maintain automation and operational scripts using Bash and Python.
• Automate repetitive administration, maintenance, monitoring, and troubleshooting tasks.
• Investigate system logs and identify root causes of infrastructure incidents.
• Apply Linux security best practices, system hardening, and vulnerability remediation.
• Support capacity, performance, and availability management of Linux servers.
• Maintain technical documentation, operational procedures, and troubleshooting guides.

Virtualization Administration

• Administer and maintain virtualization environments based on KVM and VMware ESXi.
• Provision and configure virtual machines.
• Configure virtual CPU, memory, storage, networking, and other VM resources.
• Troubleshoot hypervisor, virtual machine, storage, networking, and performance issues.
• Perform hypervisor installation, configuration, maintenance, and upgrades.
• Manage host and VM lifecycle activities.
• Support patching and security updates of virtualization infrastructure.
• Monitor virtualization infrastructure availability, health, capacity, and resource utilization.
• Support migration, recovery, and maintenance activities involving virtual machines and hypervisor hosts.
• Participate in troubleshooting incidents affecting virtualized services and infrastructure.

Data Center & Hardware Administration

• Administer and maintain physical server infrastructure, primarily Dell and HPE hardware.
• Install, configure, provision, and decommission physical servers.
• Perform hardware troubleshooting and coordinate replacement of failed components.
• Manage server firmware, BIOS, drivers, and hardware-related patching.
• Perform firmware and software patching/repatching of new and existing hardware.
• Configure and manage server remote management interfaces such as Dell iDRAC and HPE iLO.
• Monitor physical server health, hardware alerts, temperatures, power usage, and component status.
• Diagnose server hardware issues involving CPU, memory, storage, RAID, networking, power supplies, and other components.
• Work with data center services and support teams during hardware installations, replacements, maintenance, and infrastructure changes.
• Perform rack-level activities including server installation, cabling, power connectivity, and hardware replacement.
• Work with Power Distribution Units (PDUs) and related power infrastructure.
• Perform remote and local power management of servers and infrastructure equipment.
• Monitor and control power consumption within the data center environment.
• Support power planning and capacity management for racks and infrastructure.
• Maintain accurate records of physical infrastructure, server configuration, and hardware lifecycle.
• Coordinate with vendors and data center providers for hardware support and replacement activities.

Troubleshooting & Operations

• Provide operational support for Linux, virtualization, and physical server infrastructure.
• Troubleshoot incidents from the operating system through the virtualization and hardware layers.
• Perform root cause analysis for recurring infrastructure issues.
• Participate in infrastructure maintenance and planned change activities.
• Support production incidents and service restoration activities.
• Work with networking, storage, security, application, and data center teams to resolve cross-platform issues.
• Implement preventative actions to improve infrastructure stability and availability.

Security & Patch Management

• Maintain secure configuration of Linux systems and virtualization infrastructure.
• Apply security patches, firmware updates, and vulnerability remediation.
• Support security hardening according to organizational standards.
• Review operating system and infrastructure vulnerabilities and coordinate remediation.
• Ensure privileged access and administrative permissions follow security requirements.
• Support security audits and provide infrastructure-related technical information when required.

• Strong Linux system administration and troubleshooting skills.
• Experience with Linux patch and package management.
• Experience with backup and recovery operations.
• Bash and Python scripting and automation
• Linux security and system hardening.
• Experience administering KVM and VMware ESXi virtualization environments.
• Virtual machine provisioning and troubleshooting.
• Physical server administration.
• Experience with Dell and HPE enterprise servers.
• Hardware troubleshooting and component replacement.
• Experience working in data center environments.
• Configuration management and automation tools such as Ansible.
• Infrastructure monitoring and alerting systems.
• Centralized logging and log analysis.
• Enterprise backup solutions.
• SAN/NAS and enterprise storage concepts.
• Linux networking and firewall configuration.
• TCP/IP, DNS, routing, VLAN, and network troubleshooting.
• VMware vCenter.
• High-availability and clustering concepts.
• IT-based incident, problem, and change management processes.

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• An exciting and challenging workplace with great skill and knowledge development opportunities.
• The opportunity to join a team of highly professional specialists in an international environment.
• The opportunity for professional development within a reputable international innovative and growing company.
• Meal Vouchers.
• Medical insurance.