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# Senior Network Infrastructure Engineer

- **Company:** Harbor, Inc.
- **Location:** Philadelphia, PA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Border Gateway Protocol, Network Operating System (NOS), Cisco PIX, Cisco Hardwares, Cisco IOS, Cisco Routers, Computer Networks, System Configuration, Enhanced Interior Gateway Routing Protocol, Microsoft Exchange Server, Internet Protocol, Multi-protocol Systems, Microsoft Software, Network Architecture, Network Planning and Design, Network Monitoring, Open Shortest Path First (OSPF), Remote Access Technology, SAP Sales and Distribution, TCP/IP, Wi-Fi Technology, Network Routers, Dynamic Routing, Software Distribution, Firewalls (Computer Science), Network Support, Cisco Switches, Cisco
- **Published:** October 17, 2026
- **Apply:** https://www.thejobnetwork.com/job/899605dc-97a8-4b54-bf13-ca9dd18677a8/senior-network-infrastructure-engineer

## About the Role

Summary of experience required:6+ years of Network Support experience with an understanding of enterprise networking TCP/IP, network operating systems, and network software applications including Microsoft applications including AD, Win10, MS Exchange, remote access tools, software distribution, network mapping. This individual must have the ability to provide advanced problem resolution via the efficient utilization of technology and manpower resources. Must possess excellent communicative and interpersonal skills along with the ability to work both independently and within a team environment.
Technical Skills, Knowledge, and Experience:
Required:

 * Expert knowledge of Cisco IOS configuration commands and implementation.
 * Advanced configuration understanding of Cisco ASA and Cisco FPR firewalls.
 * Advanced hardware troubleshooting and support.
 * Experience in the use of advanced networking tools and utilities.
 * Understanding of networking and Internet technologies, including MPLS and dynamic routing protocols.
 * Experience in the deployment of Cisco hardware including Cisco Catalyst switches, Routers, and Firewalls.
 * Wi-Fi - Cisco controller-based - Cisco Ap's.

Desired but not required:

 * Zscaler.
 * SD-WAN.
 * Fatpipe.
 * Meraki.
 * Riverbed.

Related Training and Education Required: Bachelor's Degree or equivalent experience & CCNA / CCNP.
*** DIRECT LOCALLY BASED APPLICANTS ONLY, NO AGENCIES OR RECRUITERS ***

## Description

Job DescriptionWorking from our Philadelphia based headquarters, this individual supports, monitors, tests and troubleshoots hardware and software problems pertaining to the multi-site enterprise WAN and LAN infrastructure. Responsible for network design and implementation, network monitoring, end-user support and direct interface with telecommunications vendors. This individual must possess the skill set to implement complex projects that would include Cisco L3 switching implementations, security implementation (Cisco NG, ISE, and Prime ), and configuring LAN/ Private and Public WAN networks with Cisco routers within an MPLS network ) This position also requires a thorough understanding of dynamic routing protocols including BGP, OSPF, and EIGRP, and TCPIP addressing and design.