L2 Infrastructure Engineer: Windows, Linux & Storage

Questronix Corporation; Manila; On-site; PHP 600,000 - 1,200,000; Full time

Job summary

Questronix Corporation is seeking a Level 2 IT System Administrator to provide escalation support for Windows and Linux servers and enterprise storage environments. You will troubleshoot incidents, monitor health and performance, and coordinate with cross-functional teams to restore services.

You will manage server provisioning, patching, access control, and backup operations, including SAN/NAS/DAS storage, RAID, and virtualization platforms such as VMware vSphere/ESXi and Hyper-V.

Qualifications

• Hands-on experience with Windows Server and Linux server administration.

Responsibilities

• Provide Level 2 (L2) operational support for enterprise server and storage infrastructure across Production, UAT, and Development environments.
• Troubleshoot and resolve incidents escalated from L1 teams for server- and storage-related issues.
• Monitor server/storage health, performance, capacity, and availability using enterprise tools; take corrective actions.
• Manage server provisioning, configuration, patch management, and access control.
• Support storage provisioning, LUN allocation, volume management, and capacity monitoring.
• Troubleshoot storage issues: disk failures, latency, IOPS, connectivity.
• Support SAN, NAS, DAS environments and related protocols (FC, iSCSI, NFS, SMB).
• Perform basic SAN administration: LUN mapping, zoning, connectivity troubleshooting.
• Monitor storage performance and investigate latency/throughput issues.
• Support RAID configurations and storage array health monitoring.
• Collaborate with network, storage, database, application, and vendor teams during incident resolution.
• Ensure security policy compliance, patching standards, access control, and operational procedures.
• Provide on-call support and participate in 24/7 shift-based operations when required.

Skills

Windows Server

Linux Server

VMware vSphere/ESXi

Storage administration

LUN provisioning

Performance tuning

Incident management

On-call support

Active Directory

Networking basics

Backup and recovery

SAN/NAS/DAS

Tools

Dell EMC

NetApp

HPE storage

Veeam

Nagios

SolarWinds

Job description

Questronix Corporation is seeking a Level 2 IT System Administrator to provide escalation support for Windows and Linux servers and enterprise storage environments. You will troubleshoot incidents, monitor health and performance, and coordinate with cross-functional teams to restore services.

You will manage server provisioning, patching, access control, and backup operations, including SAN/NAS/DAS storage, RAID, and virtualization platforms such as VMware vSphere/ESXi and Hyper-V.