Network Engineer - Onsite -Evening/Night Shift - NYC/NJ

Lincoln Computer Services; New York (NY); On-site; USD 90,000 - 110,000; Full time

Job summary

Lincoln IT is looking for a Network Engineer based in New York City. The successful candidate will have a minimum of 3 years of hands-on experience managing Cisco networking systems. Responsibilities include configuring and troubleshooting network equipment, managing fiber and copper plant installations, and ensuring power distribution systems are operational. Strong knowledge of Layer 1, Layer 2, and Layer 3 networking concepts is essential. The position requires on-site work from 4 PM to 12 AM.

Qualifications

• Minimum of 3 years of hands-on experience as a Network Engineer.
• Deep understanding of Layer 3 concepts and troubleshooting.
• Working knowledge of DNS and DHCP.

Responsibilities

• Configure and troubleshoot Cisco switches and routers.
• Install and manage fiber and copper patch cords.
• Ensure power distribution and UPS functionality.

Skills

Routing protocols (EIGRP, OSPF, BGP)

Cisco switch configuration

Layer 1 and Layer 2 troubleshooting

Power over Ethernet (PoE)

IPv4 addressing and subnetting

Fiber and copper plant management

Uninterruptible Power Supply (UPS)

Tools

Cisco 2900 series

Cisco Catalyst switches

TFTP and FTP server

Cable tracing tools

Job description

We are currently seeking a Network Engineer with a minimum of 3 years of hands-on experience.

As a Network Engineer, you will be a part of a project.

This position is on site in NYC from 4PM -12 AM.

Required Skills

• Hands-on experience with 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.
• 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; typical show commands for verification of copper and fiber link status, quality of connection, expected transmit and receive light levels, interface counter types that indicate connection trouble, copper test and show commands to indicate cable short, media types.
• 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; routed ports, switched virtual interface, ARP table, ARP inspection, ARP access-control list, IPv4 access-control list, ping, traceroute.
• 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.
• Working knowledge of network and server racks; Mighty Moe, shelves, rails, cable routing.
• Working knowledge of power distribution units (PDU); Tripp-Lite, Raritan Power, APC; and power cord types; twist-lock L6-20, L6-30, C12, C13, C14.
• Working knowledge of uninterruptible power supply (UPS) units; Schneider Electric, Emerson Power, APC; replacing batteries, connecting units to the network, power input and output types; L6-20, L6-30.
• Working knowledge of networked console servers; Tripp-Lite, Avocent.
• Working knowledge DNS and DHCP; What is a host record, reverse look-up zone, CNAME.

Static IP Address – plus

• Cisco Catalyst 6800, 9300, 9400, 9500 series switches.
• Arista EOS 7280, 7504 series switches.
• Spine-leaf architecture.
• VxLAN concepts; Understanding what VNI's and VTEP's do, verification and research of host routes in EVPN tables.
• Redistribution of routing protocols; EIGRP to BGP.