Senior Network & Systems Infrastructure Engineer (Cisco & VMWare)

Fortellar•Fort Lauderdale, FL

5h•$110,000 - $118,000•Onsite

About The Position

We are seeking an experienced Infrastructure Engineer to manage, maintain, and optimize our enterprise network and virtualization infrastructure. The role covers end-to-end administration of Cisco network switches, routers, and firewalls, as well as VMware virtualization platforms and associated storage systems. The ideal candidate combines strong hands-on technical skills with a proactive approach to configure, monitor, capacity plan, and document core IT infrastructure.

Requirements

Bachelor's degree in Computer Science, Information Technology, or a related field (or equivalent practical experience).
5+ years of hands-on experience managing enterprise network and virtualization infrastructure.
Strong expertise in Cisco networking: switching, routing, and firewall administration.
Proven experience administering VMware vSphere (ESXi, vCenter) in production environments.
Solid working knowledge of enterprise storage technologies (SAN/NAS, iSCSI, FC, NFS).
Strong understanding of network security principles, VPNs, and access control.
Experience with monitoring and management tools (e.g., SolarWinds, PRTG, vRealize/Aria Operations).
Excellent troubleshooting, analytical, and documentation skills.
Strong communication skills and ability to work with cross-functional teams and vendors.
Self-driven, with the ability to prioritize and manage multiple tasks in a fast-paced environment.
Commitment to reliability, security, and continuous improvement.

Nice To Haves

Cisco CCNA required; CCNP (Enterprise or Security) preferred.
VMware VCP-DCV (Data Center Virtualization).
Storage vendor certification (e.g., NetApp NCDA, Dell EMC) is a plus.
ITIL Foundation is an advantage.
Scripting/automation experience (PowerShell, PowerCLI, Python, Ansible).
Experience with backup solutions (Veeam, Commvault) and DR planning.
Familiarity with Windows Server and Active Directory environments.

Responsibilities

Install, configure, and maintain Cisco switches and routers across LAN/WAN environments.
Manage routing protocols, VLANs, trunking, spanning tree, and inter-VLAN routing.
Configure and administer Cisco firewalls, including access control policies, NAT, site-to-site and remote-access VPNs.
Monitor network performance, troubleshoot connectivity and latency issues, and perform root-cause analysis.
Implement network segmentation, QoS policies, and security hardening in line with best practices.
Maintain firmware/IOS upgrade cycles, configuration backups, and change control for all network devices.
Administer On-prem VMware vSphere environments, including ESXi hosts, vCenter Server and resource pools.
Manage VM lifecycle: provisioning, templates, snapshots, migrations (vMotion/Storage vMotion), and decommissioning.
Perform configurations, performance tuning, monitoring and patch management.
Support backup and disaster recovery solutions for virtualized workloads (e.g., Veeam or equivalent).
Administer SAN/NAS storage platforms (e.g., Dell EMC) including LUN provisioning, zoning, and datastore management.
Manage storage connectivity (iSCSI, Fibre Channel, NFS) between storage arrays and the VMware environment.
Monitor storage capacity, IOPS, and latency; plan expansions and optimize utilization.
Implement and test storage-level replication, snapshots, and data protection policies.
Respond to incidents and service requests within defined SLAs; participate in on-call rotation as required.
Maintain accurate infrastructure documentation: network diagrams, IP address management, runbooks, and configuration standards.
Collaborate with security, application, and vendor teams on projects, upgrades, and audits.
Support datacenter operations, including hardware installation, cabling, and environmental monitoring.
Contribute to infrastructure improvement initiatives, automation (scripting), and technology refresh planning.