Senior Network Design Engineer — Hybrid Contract

Rulesys Technologies Inc

Northern (KY)

Hybrid

USD 96,000 - 152,000

Full time

17 hours ago

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Benefits offered by this job

40-hour work week

Hybrid work arrangement

Job summary

NJ Transit seeks a senior Network Engineering Specialist to lead architecture, engineering, implementation, modernization, and 24/7 operational support of enterprise network infrastructure across facilities, data centers, and field sites. The role covers routing, switching, WAN, SD‑WAN, data center networking, security integration, and cloud connectivity.

The engineer will collaborate with Architecture, Operations, and vendor teams to deliver reliable, secure, and highly available network

Qualifications

Bachelor’s degree in Computer Science, Information Technology, Engineering, Telecommunications, or a related discipline, or equivalent professional experience.
10+ years of progressively responsible enterprise network engineering experience in large and complex environments.
Expert-level knowledge of enterprise routing and switching.
Advanced experience with Cisco routers, Catalyst switches, Nexus platforms, and enterprise network technologies.
Advanced knowledge of BGP, OSPF, EIGRP, TCP/IP, VLANs, VRFs, STP, QoS, multicast, VPNs, and route redistribution.
Strong experience with enterprise WAN and SD-WAN architecture and implementation.
Experience with carrier telecommunications services and WAN circuit technologies.
Experience designing highly available and geographically diverse network infrastructure.

Responsibilities

Design, engineer, implement, configure, troubleshoot, and optimize enterprise LAN and WAN infrastructure.
Design and support complex Layer 2 and Layer 3 environments using BGP, OSPF, EIGRP, VLANs, VRFs, HSRP, STP, QoS, multicast, and route redistribution.
Develop network standards, reference architectures, engineering specifications, and configuration standards.
Perform capacity planning, performance analysis, lifecycle management, and infrastructure modernization.
Engineer WAN connectivity utilizing Internet, broadband, Ethernet, MPLS, EPL/EVPL, wavelength services, and dark fiber.
Troubleshoot complex WAN performance issues including latency, packet loss, jitter, routing, carrier transport, and application performance.
Support Cisco data center technologies, including Nexus switching and Cisco ACI.
Support data center consolidation, relocation, migration, and infrastructure modernization initiatives.
Engineer high‑speed 10G, 40G, 100G, and 400G connectivity where required.
Support optical networking, DWDM, dark fiber, carrier wavelength services, and data center interconnect solutions.
Design and support network segmentation using VLANs, VRFs, ACLs, firewalls, VPNs, IPSec, and related technologies.
Participate in the implementation of Zero Trust, SASE, and other modern network security architectures.
Support technologies including Azure ExpressRoute, AWS Direct Connect, VPN, and cloud‑based network services.
Troubleshoot routing, connectivity, performance, and security issues between on‑premises and cloud environments.
Support connectivity requirements for operational and infrastructure systems such as CCTV, voice, building systems, monitoring platforms, and other IP‑connected technologies.
Utilize tools such as SolarWinds, ServiceNow, ThousandEyes, packet analysis tools, and other network‑management platforms.
Support accurate network inventory and CMDB information.
Develop automation using technologies such as Python, Ansible, APIs, and Terraform where appropriate.
Develop High‑Level Designs (HLDs), Low‑Level Designs (LLDs), Methods of Procedure (MOPs), implementation plans, test plans, rollback procedures, network diagrams, and operational documentation.
Conduct technical design reviews and identify dependencies, risks, capacity limitations, and implementation concerns.