L2 Infrastructure System Engineer

L2 Infrastructure System Engineer

Questronix Corporation · Makati, Philippines · — · Posted 2026-11-06

Workplace: on_site

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.

Requirements

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.

Apply

Apply at Questronix Corporation

---

Powered by Workable