Senior Network Engineer

Department: IT Infrastructure Reports To: Director of IT Infrastructure Job Summary The Network Engineer is responsible for the design, implementation, administration, monitoring, and optimization of the organization's enterprise network and virtual infrastructure across domestic and international locations. This role ensures high availability, security, and performance of LAN, WAN, WLAN, SD-WAN, VPN, VMware, Azure, and associated systems. The position provides technical leadership, supports disaster recovery planning, and leads strategic infrastructure initiatives. Key Responsibilities Design, deploy, configure, and support enterprise LAN, WAN, WLAN, SD-WAN, VPN, and virtual network environments. Administer and support VMware environments including ESXi, vCenter, HA, DRS, vMotion, and virtual switching. Manage Azure infrastructure including VNets, subnets, NSGs, VPN/ExpressRoute connectivity, Azure VMs, storage, and monitoring tools. Maintain Cisco routers, switches, firewalls, and related network hardware; upgrade IOS and firmware as required. Implement and maintain firewall policies, network segmentation, IPS/IDS, and secure remote-access solutions. Monitor network and system performance using enterprise monitoring tools and perform proactive capacity planning. Support Client enterprise storage systems integrated with VMware infrastructures. Perform data backups, disaster recovery planning, testing, and documentation. Lead troubleshooting efforts, perform root cause analysis, and implement corrective actions. Maintain documentation including network diagrams, standards, operating procedures, and disaster recovery plans. Provide Tier III escalation support and mentor junior IT staff. Coordinate with vendors for procurement, support escalations, lifecycle management, and technology refresh initiatives. Participate in after-hours support and on-call rotation as required. Technical Skills & Qualifications Advanced knowledge of enterprise networking (BGP, OSPF, STP, QoS, IPsec). Strong experience with Cisco, SD-WAN platforms, Palo Alto or equivalent firewall technologies. Advanced VMware vSphere administration and virtual networking expertise. Hands-on experience with Microsoft Azure infrastructure and hybrid connectivity. Experience with Client enterprise storage platforms supporting virtual environments. Strong understanding of network security architecture and compliance standards. Proficiency with monitoring tools (Opmanager, Datadog, Logic Monitor, PRTG, Meraki, Wireshark, etc.). Experience integrating on-premises networks with cloud platforms (Azure, AWS). Ability to design scalable, resilient, and redundant network architectures. Strong written and verbal communication skills. Education & Experience Bachelor's degree in information systems, Computer Science, or related field. 7+ years of progressive enterprise networking experience. Relevant certifications such as CCNP, CCIE, NSE, PCNSE, Network+, or Security+ preferred. Special Requirements Ability to travel to domestic and international locations if required. Participation in 24/7 on-call rotation and after-hours/weekend support as needed. Demonstrated leadership ability and project management experience.