Infrastructure Systems Engineer

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

Job summary

Questronix Corporation in Makati, Philippines, is seeking an L2 IT Infrastructure Specialist to support enterprise server and storage environments. You will troubleshoot complex incidents, monitor health and performance, manage provisioning and patching, and ensure secure operations across Windows and Linux systems in Production, UAT, and Development.

The role requires familiarity with SAN/NAS/DAS, RAID, backup solutions, and virtualization platforms such as VMware vSphere, ESXi, or Hyper-V,

Qualifications

• Hands-on with Windows Server and Linux administration.
• Strong understanding of server infrastructure and performance monitoring.
• Experience with virtualization platforms such as VMware vSphere/ESXi or Hyper‑V.
• Active Directory administration knowledge including users/groups and GPOs.
• Familiarity with SAN/NAS/DAS storage environments.
• Basic to intermediate storage administration duties like LUN provisioning.
• Understanding of RAID levels and storage performance considerations.
• Knowledge of backup and recovery solutions and policies.
• Understanding of ITIL processes and incident/change management.
• Willingness to work in 24/7 on-call environments.

Responsibilities

• Provide L2 support for enterprise server and storage infrastructure across environments.
• Troubleshoot and resolve incidents escalated from L1 teams.
• Monitor server/storage health, performance, capacity, and availability.
• Manage server provisioning, configuration, and patch management.
• Support storage provisioning, LUN allocation, and capacity monitoring.
• Perform storage troubleshooting for latency, IOPS, and throughput issues.
• Support SAN/NAS/DAS environments and related protocols (FC, iSCSI, NFS, SMB).
• Perform basic SAN administration: LUN mapping and zoning coordination.
• Monitor RAID health and coordinate disk replacement activities.
• Coordinate backup/restore operations and verify job success.
• Maintain technical documentation and runbooks.
• Collaborate with network/storage/database/vendor teams during incidents.
• Execute approved infrastructure changes following change management.
• On-call support and participation in 24/7 shift rotations.

Skills

Windows Server

Linux server administration

VMware vSphere/ESXi

Active Directory administration

SAN/NAS/DAS storage

RAID concepts

Backup and recovery concepts

Patch management

Security hardening

TCP/IP networking

Enterprise monitoring

ITSM tools (ServiceNow/Jira)

ITIL processes

On-call 24/7 support

Veeam/Commvault/NetBackup

Fibre Channel, iSCSI

NFS/SMB protocols

Tools

SolarWinds

Zabbix

Nagios

SCOM

ServiceNow

Jira

Dell EMC

NetApp

HPE

IBM

Veeam

Commvault

NetBackup

Job description

Job Description:

• Provide Level 2 (L2) operational support for enterprise server and storage infrastructure, including Windows and Linux systems across Production, UAT, and Development environments.
• Perform advanced troubleshooting and incident resolution for server- and storage-related issues escalated from L1 support teams.
• Monitor server and storage health, performance, capacity, and availability using enterprise monitoring tools, and take corrective actions when required.
• Manage server administration tasks, including user access, services management, system logs, disk utilization, and performance tuning.
• Support storage administration and operations, including storage provisioning, LUN allocation, volume management, and capacity monitoring.
• Perform storage troubleshooting related to disk failures, storage latency, connectivity, IOPS, and capacity utilization.
• Support enterprise storage technologies, including SAN, NAS, and DAS environments.
• Perform basic SAN administration, including LUN mapping, zoning coordination, and storage connectivity troubleshooting.
• Support storage technologies and protocols such as Fibre Channel (FC), iSCSI, NFS, and SMB.
• Monitor storage performance and investigate issues related to storage latency, throughput, and I/O performance.
• Support RAID configurations, disk replacement coordination, and storage array health monitoring.
• Manage server provisioning, configuration, and patch management following established standards and procedures.
• Troubleshoot OS-level issues, application dependencies, and network connectivity problems impacting server and storage operations.
• Manage backup and restore operations using enterprise backup tools and ensure backup job success and data recovery readiness.
• Support storage backup, replication, snapshots, and recovery operations.
• Perform root cause analysis (RCA) for recurring server and storage incidents and recommend preventive actions.
• Support virtualized environments such as VMware vSphere, ESXi, and Microsoft Hyper-V, including VM monitoring, basic provisioning, and troubleshooting.
• Execute approved infrastructure changes, maintenance activities, storage expansion, and system upgrades in accordance with change management procedures.
• Maintain and update technical documentation, operational procedures, and knowledge base articles.
• Collaborate with network, storage, database, application, and vendor support teams during incident resolution and service restoration.
• Ensure compliance with security policies, patching standards, access control procedures, and infrastructure operational standards.
• Provide on-call support and participate in a 24/7 shift-based operational environment when required.

Qualifications:

• Hands-on experience with Windows Server and/or Linux server administration.
• Strong understanding of server infrastructure, operating systems, and system performance monitoring.
• Experience with virtualization platforms such as VMware vSphere, ESXi, or Microsoft Hyper-V.
• Knowledge of Active Directory administration, including user and group management, Group Policy, and authentication services.
• Familiarity with enterprise storage technologies such as SAN, NAS, and DAS.
• Basic to intermediate knowledge of storage administration, including LUN provisioning, volume management, storage capacity monitoring, and disk management.
• Understanding of RAID levels, disk technologies, storage performance, and I/O troubleshooting.
• Familiarity with storage protocols such as Fibre Channel, iSCSI, NFS, and SMB.
• Knowledge of storage platforms such as Dell EMC, NetApp, HPE, IBM, or similar enterprise storage solutions.
• Familiarity with backup and recovery solutions such as Veeam, Commvault, NetBackup, or similar tools.
• Understanding of backup policies, snapshots, replication, and disaster recovery concepts.
• Understanding of server patch management, system updates, and security hardening practices.
• Experience troubleshooting server and storage performance issues involving disk utilization, memory, CPU, latency, IOPS, and service failures.
• Basic knowledge of network troubleshooting, including TCP/IP, DNS, DHCP, VLANs, and connectivity validation.
• Familiarity with enterprise monitoring tools such as SolarWinds, Zabbix, Nagios, SCOM, or similar platforms.
• Experience with ITSM platforms such as ServiceNow, Jira, or similar ticketing systems.
• Good analytical, problem-solving, communication, and technical documentation skills.
• Understanding of ITIL processes, including Incident, Problem, and Change Management.
• Willingness to work in 24/7 shifting schedules and on-call support environments.