Network Engineer

Senior Network Hand & Feet Engineer (L2/L3 Physical & Logical Support)

Rate is $45/hr W2

Top 3 Skills Required :

1. Cisco Palo Alto and F5

2. Ethernet and Fiber Cabling

3. Layer 1(Physical Cabling) and Layer 2 (Network Connectivity) Troubleshooting

Core Objective

The candidate will be responsible for the end-to-end physical deployment and logical validation of network infrastructure. You will be expected to diagnose issues across Layers 1, 2, and 3 of the OSI model, ensuring that physical connectivity aligns with logical configurations.

• Precision Placement:
  Interpret and execute Rack Elevation Diagrams (REDs) to mount high-density chassis (Cisco Nexus 9k, Catalyst 9500) and 1U/2U appliances.
• Mechanical Safety:
  Ensure proper use of rack rails, cage nuts, and stabilization kits. Manage weight distribution to maintain rack integrity.
• Power Sequencing:
  Connect dual-homed power supplies to diverse PDU sources (A+B feeds) and perform "pull tests" to verify seating.

• Fiber Optics:
  Expert-level handling of Single Mode (SMF) and Multi-Mode (MMF) fiber. Proficiency in cleaning connectors (IBC cleaners) and inspecting end-faces with fiber scopes.
• SFP/Transceiver Management:
  Correctly identify and install SFP, SFP+, QSFP+, and QSFP
  28 modules. Troubleshoot "link down" issues by verifying wavelength compatibility (e.g., 850nm vs 1310nm) and light levels.
• Patching & Labeling:
  Execute high-density patching in accordance with ANSI/TIA-606-B standards. Ensure every cable is labeled at both ends with Near-End/Far-End information.

• Circuit Extensions:
  Coordinate with Telco providers to extend circuits from the Meet-Me-Room (MMR) to the local rack via cross-connects.
• Patch Panel Termination:
  Manage copper (RJ45) and fiber (LC/SC/MPO) patch panels. Perform "light-checks" using Visual Fault Locators (VFL) to trace paths through multiple patches.
• Media Conversion:
  Deploy and troubleshoot media converters or transceivers when transitioning between different physical media types.
• Out-of-Band (OOB) Setup:
  Configure and cable Terminal Servers (e.g., Opengear, Lantronix, or Cisco ISR) to provide permanent remote console access to all managed devices.
• Serial Connectivity:
  Troubleshoot baud rate mismatches, roll-over cables, and DB9-to-RJ45 adapters to ensure the NOC has a reliable "backdoor" during outages.
• Local Support:
  Be prepared to connect locally via laptop and serial-to-USB adapters to provide a "live stream" of boot sequences or BIOS-level troubleshooting.

• L1 Fundamentals :
  Strong working knowledge in ethernet , Gigabit Ethernet, Serial , fiber cabling, transceivers (Arista, Cisco SFP+, QSFP+), SFP, PIC, NIM, HA ports, power supplies, patching and troubleshooting, with knowledge of DWDM and experience in handling 10/20/40 Gig Fiber links
• L2 Fundamentals:
  Configure and troubleshoot VLANs, VTP, and Spanning Tree Protocol (STP), Port mirroring, packet captures. Must understand how to identify and resolve broadcast storms or physical loops at the rack level.
• L3 Fundamentals:
  Assist in the bring-up of Layer 3 interfaces (SVIs and Routed Ports). Basic knowledge of prefix lengths and IP addressing to verify gateway connectivity.
• Protocol Verification:
  Use CLI commands to verify BGP and OSPF neighbor adjacencies after physical circuit hand-offs or cross-connect installations.
• Ether Channel/LACP:
  Provision and troubleshoot Link Aggregation Groups (LAGs). Ensure that physical cabling matches the logical member-port configuration on the switch.

• Experience:
  
  6–8 years in a Data Center or large Enterprise campus environment.
• Ethernet, Fiber cabling, Hardware :
  Experience in installation of ethernet, fiber cabling on Cisco, Arista and Palo Alto, F5 load balancers and its associated components like SFP, PIC, NIM, DPC
• Routing and Switching:
  Ability to navigate Cisco IOS, NX-OS, PAN OS or Arista EOS to perform show commands and basic interface configurations.
• Tools:
  Proficiency with Visual Fault Locators (VFL), Light Meters, and Fiber Inspection Scopes.
• Certifications:
  
  CCNA or equivalent is mandatory; CCNP Enterprise (ENCORE) is highly preferred to demonstrate routing and switching proficiency.
• Experience in handling mission critical network incidents/problems in Enterprise network Large campus networks and Data center, is preferred.
• Need to be proficient in English and local language in countries like Switzerland, Germany, Austria, Slovenia, China and Japan