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.