Senior Network Engineer – Enterprise & SD-WAN

    Senior Network Engineer – Enterprise & SD-WAN Work Type: Hybrid – 3 days onsite, Newark, NJ   Job Summary Senior technical role responsible for the architecture, engineering, implementation, modernization, and operational support of NJ Transit's large, geographically distributed enterprise network — covering corporate facilities, rail/bus locations, data centers, stations, and critical infrastructure. Key Responsibilities - Design, implement, configure, and troubleshoot enterprise LAN/WAN infrastructure. - Support complex L2/L3 environments using BGP, OSPF, EIGRP, VLANs, VRFs, STP, QoS, multicast, and route redistribution. - Engineer WAN/SD-WAN connectivity — MPLS, Ethernet, EPL/EVPL, broadband, wavelength, dark fiber. - Support Cisco Nexus, ACI, Catalyst, and data center networking (10G/40G/100G/400G, DWDM, DCI). - Implement Zero Trust, SASE, network segmentation, VPN, and IPSec. - Support Azure ExpressRoute, AWS Direct Connect, and cloud connectivity. - Develop automation using Python, Ansible, APIs, Terraform. - Create HLDs, LLDs, MOPs, test plans, and network diagrams. - Coordinate with architecture, operations, telecom, vendors, and carriers. Required Skills (7+ Years Each) - Enterprise network engineering in large, complex environments (10+ yrs) - Expert-level enterprise routing & switching - Advanced Cisco (routers, Catalyst, Nexus) experience - Advanced BGP, OSPF, EIGRP, TCP/IP, VLANs, VRFs, STP, QoS, multicast, VPNs - Strong WAN & SD-WAN architecture & implementation - Carrier telecom services & WAN circuit technologies - Highly available & geographically diverse network design All your information will be kept confidential according to EEO guidelines.