Network Security Engineer -Middletown, NJ Onsite, 2nd Shift
Company: Lincoln IT
Location: Middletown
Posted on: February 14, 2026
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Job Description:
Job Description Job Description We are currently seeking for a
Network Security Engineer with a minimum of 3-5 years of hands-on
experience. Manage our network segmentation and network visibility
solution. Responsibilities: Routing protocols EIGRP, OSPF, and BGP;
configuring, troubleshooting, typical show commands to research
issues. Racking and stacking Cisco 2900, 3700, 3600, 3800, 4500,
6500 series switches. Upgrading firmware on Cisco switches. Engage
with Engineering, Medical, PCI Compliance and application
development teams to determine segmentation requirements. Engage
with vendors to determine segmentation requirements for their
products. Troubleshooting of any issues that occur because of
segmentation. Broker after hours outage time with stakeholders for
network segmentation changes. Site surveys of systems/devices that
will be segmented. Handle escalated tickets regarding segmentation
and network visibility. Onsite support for afterhours segmentation
changes. Troubleshoot integration issues with other systems.
Troubleshoot communication issues between the overlay and underlay
of our network segmentation solution. Collaborate with rest of
network department to ensure their systems remain stable as we add
security measures. Support Radiology doctors with their remote
access devices. Configure new devices onsite for new doctors.
Participate in Change control process and peer reviews. Tools for
upgrading firmware on Cisco switches; TFTP and FTP server, thumb
drive. Configuration of Cisco switches in command line via console
and SSH. Working knowledge of Cisco Catalyst linecards; multi-gig
copper and fiber cards, supervisors. Deep understanding of Layer 1
concepts, configuration, and troubleshooting; Working knowledge of
Power over Ethernet; verification of power being provided to
devices, PoE power budget on a switch. Deep understanding of Layer
2 concepts, configuration, and troubleshooting; spanning tree, root
bridge, BPDU, designated ports, root ports, trunk and access ports,
rapid spanning tree, ieee, MST, VLAN, Layer 2 extension, CDP, LLDP,
MAC address, CAM and TCAM table, DHCP snooping. Deep understanding
of Layer 3 concepts, configuration, and troubleshooting; Deep
understanding of Layer 4 concepts, configuration, and
troubleshooting; Deep understanding of Layer 7 concepts,
configuration, and troubleshooting; Deep understanding of first-hop
redundancy protocols; HSRP, GLBP, VRRP. Deep understanding of IPv4
addressing, variable length subnet masks, summarization. Fiber
plant management; installing fiber patch cords, troubleshooting
link issues, working knowledge of multi-mode and single-mode fiber
cabling. Copper plant management; installing CAT5/5e/6 patch cords,
568A/B termination, knowledge of straight through, cross-over,
rollover cabling, usage of a tone generator and tracing copper
cabling from Location A to Location Z. Working knowledge of Cisco
fiber transceiver types; SFP, SFP28, QSFP; and wavelength types;
850nm, 1310nm, SX, LX, SR, LR, LR4, 1-gig, 10-gig, 25-gig, 100-gig.
Skills & Experience: 5 years' experience in network engineering
Bachelor's degree CCNA, A and Network certification is strongly
recommended In-depth knowledge of Networking and Security.
Knowledge of Security best practices. Experience working with
Firewalls, Routers, Switches, Access points and Voice over IP
phones. Excellent communication skills will need to converse with
various technical and non-technical teams. Flexibility to work
after hours on changes. Experience with network segmentation and
Zero-trust architecture is a plus. Experience with a SASE solution
is a plus. Worked in a hospital setting before is a plus. Company
Overview Founded in 1998, Lincoln Computer Services is a growing
custom IT solution provider, servicing New York City and Long
Island, New York. If you are interested in working for a
growth-oriented company with a culture that exudes collaboration,
integrity and a passion for technology, submit your resume today!
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Keywords: Lincoln IT, Irvington , Network Security Engineer -Middletown, NJ Onsite, 2nd Shift, IT / Software / Systems , Middletown, New Jersey
