L2 Infrastructure System Engineer

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.