Senior Network & Systems Infrastructure Engineer; Cisco & VMWare

About the role

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 planning and documentation of core IT infrastructure.

• 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.

• 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., Solar Winds, PRTG, vRealize/Aria Operations).
• Excellent troubleshooting, analytical, and documentation skills.

• Cisco CCNA required; CCNP (Enterprise or Security) preferred.
• VMware VCP-DCV (Data Center Virtualization).
• Storage vendor certification (e.g., Net App NCDA, Dell EMC) is a plus.
• ITIL Foundation is an advantage.

• Scripting/automation experience (Power Shell, PowerCLI, Python, Ansible).
• Experience with backup solutions (Veeam, Commvault) and DR planning.
• Familiarity with Windows Server and Active Directory environments.

• 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.

• On-call availability for critical incidents and scheduled maintenance windows (evenings/weekends as needed).
• Onsite required:
  Monday - Friday, 8am-5pm