Senior Network & Systems Infrastructure Engineer (Cisco & VMWare)

Fortellar•Fort Lauderdale, FL

22d•$110,000 - $118,000•Onsite

About The Position

This is an onsite role in the Fort Lauderdale / Miami area. You'll be the primary owner of our client's network, virtualization, and storage infrastructure. You will work independently in this hands-on, execution role. Our client runs 3 Cisco firewalls, 12 Cisco switches, 2 SAN storage arrays, and 2 VMware servers on-prem, with site-to-site VPN connectivity from<> to multiple physical sites, a managed data center, and AWS. You'll need to run all of this with minimal oversight from day one.

Requirements

Independent firewall & VPN ownership: Hands-on configuration and troubleshooting of Cisco firewalls, including site-to-site and remote-access VPN tunnels. You must be able to stand up, diagnose, and repair a VPN tunnel (e.g., Phase 1/2 mismatches, flapping tunnels, NAT-T issues) without vendor support.
On-prem AD ↔ cloud sync troubleshooting: Working knowledge of Active Directory domain services and hybrid identity sync (Azure AD Connect / Entra Connect). You can diagnose sync failures, replication issues between domain controllers, and authentication problems that span on-prem and cloud.
5+ years hands-on managing enterprise Cisco network infrastructure (switching, routing, firewalls) in a production environment, largely unsupervised.
VMware vSphere administration (ESXi, vCenter) VM lifecycle, migrations, performance troubleshooting.
Cisco CCNA required
VMware VCP-DCV (Data Center Virtualization)
Storage vendor certification (e.g., NetApp NCDA, Dell EMC)

Nice To Haves

CCNP (Enterprise or Security)
Storage vendor certification (e.g., NetApp NCDA, Dell EMC)

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.