Senior Systems & Infrastructure Engineer (L3 Support)
Salary: $50,000 – $70,000 per month
Senior Systems & Infrastructure Engineer (L3 Support)
Role Overview
The Senior Systems & Infrastructure Engineer (L3) oversees the compute, virtualization, enterprise storage, backup, and disaster recovery ecosystem. Serving as the Level 3 escalation authority, this position maintains high availability, executes infrastructure upgrades, and guarantees business continuity across on-premises and data center environments.
Key Responsibilities
L3 Escalation & Problem Management: Provide Tier-3 troubleshooting for complex compute, storage, and virtualization incidents; drive Root Cause Analysis (RCA) and permanent defect elimination.
Virtualization Architecture: Manage enterprise VMware vSphere (ESXi, vCenter, HA, DRS, vMotion) environments, including capacity planning, cluster upgrades, and performance optimization.
Compute Infrastructure: Maintain Cisco UCS fabric interconnects, blade chassis, service profiles, and firmware baselines in coordination with TAC.
Enterprise Storage: Provision and manage NetApp storage environments (SAN/NAS, NFS, CIFS/SMB, LUN management), monitoring health and performance metrics.
Data Protection & DR: Administer enterprise backup frameworks (Veritas NetBackup, Veeam Backup & Replication); execute regular Disaster Recovery (DR) testing and runbook validation.
Operating Systems & Automation: Maintain enterprise Windows Server platforms, utilizing PowerShell scripting for infrastructure maintenance and automation tasks.
Upgrades & Maintenance: Plan and execute infrastructure firmware/software updates, applying strict pre- and post-change validation procedures.
Technical Skills & Qualifications
Education & Experience: Bachelor’s degree or Diploma in IT, Computer Science, or System Engineering with 5–8+ years of infrastructure engineering experience.
Certifications: VCP-DCV, Cisco Data Center, NetApp NCIE, or Veeam VMCE preferred.
Virtualization & Compute: Advanced knowledge of VMware vSphere 7.x/8.x and Cisco UCS Manager.
Storage & Data Protection: Hands-on experience with NetApp ONTAP, Veritas NetBackup, and Veeam Backup & Replication.
OS & Scripting: Proficient in Windows Server management and PowerShell automation.
Process & Soft Skills: Solid understanding of ITIL Incident, Problem, and Change Management workflows.
Working Conditions
Off-hours maintenance coverage and scheduled on-call support.
Periodic visits to enterprise data centers.