UNIX/Linux Systems Administration

Role Overview

VAM Systems is recruiting a UNIX/Linux Systems Administration professional for its Bahrain operations.

Role Purpose

To architect, deploy, and maintain enterprise UNIX and Linux infrastructure across mixed physical and virtualized environments, ensuring zero-downtime operations, optimal performance, and disaster recovery readiness across multi-vendor hardware platforms.

Key Responsibilities

OS Upgradation & Lifecycle Patching

• Architect, plan, and execute zero-downtime OS upgradation and monthly OS patching schedules across a mixed fleet of Oracle Solaris 10/11 and enterprise Linux distributions (RHEL/Ubuntu).
• Utilize native utilities such as Solaris Alternate Boot Environments (ABE), pkg, beadm, and Linux yum/dnf/apt.

Firmware Upgrade & Hardware Remediation

• Routinely manage firmware upgrades for critical platform assets including system BIOS/UEFI, storage controllers, host bus adapters (HBAs), and network interfaces.
• Support multi-vendor systems including Oracle/Sun SPARC servers, Dell PowerEdge, and HPE ProLiant frames.
• Isolate, troubleshoot, and fix complex physical hardware faults.

Platform Operations & Troubleshooting

• Maintain, tune, and optimize bare-metal systems and guest kernels.
• Rapidly diagnose and fix critical OS-level panics, memory leaks, and performance bottlenecks using advanced tools like DTrace or system core dumps.

Virtualization Architecture

• Plan, deploy, and allocate compute, memory, and storage boundaries across enterprise infrastructure.
• Utilize LDOMs, VMware, KVM, and Hyper-V hypervisors.

KVM Implementation & Tuning

• Deploy, configure, and maintain KVM hypervisors using virsh and libvirt.
• Optimize VirtIO kernel modules and guest image formats for high-throughput enterprise Linux applications.

Network Integration & Routing

• Manage host-level network configurations, including 802.1Q VLAN tagging, LACP link aggregation/bonding, and virtual switching.
• Implement and troubleshoot static routing tables, manage multi-homed systems, and prevent asymmetric routing across production tiers.

Enterprise Backup & Recovery Operations

• Manage and orchestrate large-scale data retention policies, backup jobs, and bare-metal disaster recovery strategies.
• Administer Veeam Backup & Replication for virtualized workloads.
• Administer OpenText Data Protector for legacy tape and disk targets.

Qualifications & Experience

• 5+ years in UNIX/Linux Systems Administration with a proven track record of root-cause troubleshooting, OS upgradation, lifecycle patching, and firmware upgrades across severe hardware/OS infrastructure disruptions.
• Engineering-level competence maintaining guest workloads and virtual layers across LDOMs, VMware, KVM, and Hyper-V environments.
• Deep cross-functional proficiency in managing multi-vendor compute hardware architectures alongside multiple operating systems (Solaris SPARC and enterprise Linux).
• Strong foundational knowledge of core network infrastructure including switching, routing, and VLAN isolation tools.
• Proven experience managing enterprise backup fabrics using Veeam and OpenText Data Protector, including backup job optimization and bare-metal verification testing.

Additional Information

• Joining timeframe: 15–30 days.