Network Technical Support Engineer

VDart Inc; Washington (District of Columbia); On-site; USD 90,000 - 130,000; Full time

Job summary

VDart Inc. is seeking a Network Technical Support Engineer in Seattle, WA, onsite for a 6-month contract. The role requires 5+ years supporting large-scale production networks, focusing on troubleshooting Layer 2/3, broadband/IP networks, routing, and incident RCA.

Responsibilities include fault isolation across multiple domains, VLAN/QinQ, BGP/OSPF, and network telemetry analysis. Proficiency with CLI, Wireshark, and runbooks is essential.

Qualifications

• 5+ years in Network Engineering, Network Operations, or Technical Network Support.
• Hands-on Layer 2 & Layer 3 troubleshooting experience.
• Strong knowledge of TCP/IP, Ethernet, VLAN/QinQ, ARP, DHCP, DNS, IPv4/IPv6, BGP, OSPF/IS-IS, VRF, NAT/CGNAT, QoS, and IP Routing.
• Experience with network device CLI and packet-flow analysis.
• Hands-on Wireshark/TCP dump experience.
• Strong troubleshooting, analytical, and RCA skills.

Responsibilities

• Troubleshoot complex production issues involving connectivity, latency, packet loss, routing, and network performance.
• Perform fault isolation across access, aggregation, transport, IP, routing, and customer-premises domains.
• Troubleshoot VLAN/QinQ, Ethernet, ARP, STP, IPv4/IPv6, BGP, OSPF/IS-IS, VRF, DHCP, DNS, NAT/CGNAT, and QoS.
• Analyze packet captures, logs, alarms, routing tables, interface statistics, and network telemetry.
• Use network CLI, Wireshark/tcp dump, and monitoring tools for troubleshooting.
• Own complex incidents through resolution and perform Root Cause Analysis (RCA).
• Collaborate with NOC, Network Engineering, Architecture, Operations, Service Assurance, and vendors.
• Support network upgrades, migrations, configuration changes, and new service launches.
• Develop troubleshooting procedures, runbooks, and corrective actions.

Skills

Layer 2/3 Troubleshooting

BGP

OSPF/IS-IS

TCP/IP

VLAN/QinQ

Wireshark

Network CLI

Broadband/ISP

Job description

Job Title: Network Technical Support Engineer

Location: Seattle, WA (Onsite)

Duration: 6 Months

Job Summary: Seeking a Network Technical Support Engineer with 5+ years of experience supporting large-scale production networks. The role focuses on troubleshooting Layer 2/Layer 3, broadband/IP networks, routing, connectivity, and production incidents. Strong experience with fault isolation, packet analysis, RCA, and network device CLI is required.

Key Responsibilities:

• Troubleshoot complex production issues involving connectivity, latency, packet loss, routing, and network performance.
• Perform fault isolation across access, aggregation, transport, IP, routing, and customer-premises domains.
• Troubleshoot VLAN/QinQ, Ethernet, ARP, STP, IPv4/IPv6, BGP, OSPF/IS-IS, VRF, DHCP, DNS, NAT/CGNAT, and QoS.
• Analyze packet captures, logs, alarms, routing tables, interface statistics, and network telemetry.
• Use network CLI, Wireshark/tcp dump, and monitoring tools for troubleshooting.
• Own complex incidents through resolution and perform Root Cause Analysis (RCA).
• Collaborate with NOC, Network Engineering, Architecture, Operations, Service Assurance, and vendors.
• Support network upgrades, migrations, configuration changes, and new service launches.
• Develop troubleshooting procedures, runbooks, and corrective actions.

Skills:

Layer 2/3 Troubleshooting | BGP | OSPF/IS-IS | TCP/IP | VLAN/QinQ | DHCP/DNS | IPv4/IPv6 | NAT/CGNAT | Wireshark/tcpdump | Network CLI | Broadband/ISP

Required Skills:

• 5+ years in Network Engineering, Network Operations, or Technical Network Support.
• Strong hands-on Layer 2 & Layer 3 troubleshooting.
• Strong knowledge of TCP/IP, Ethernet, VLAN/QinQ, ARP, DHCP, DNS, IPv4/IPv6, BGP, OSPF/IS-IS, VRF, NAT/CGNAT, QoS, and IP Routing.
• Experience with network device CLI and packet-flow analysis.
• Hands-on Wireshark/TCP dump experience.
• Strong troubleshooting, analytical, and RCA skills.

Preferred / Highly Desired:

• Broadband / ISP / Fiber / FTTH experience.
• GPON/XGS-PON, OLT/ONT, BNG/BRAS, RADIUS/AAA, CGNAT, MPLS/Segment Routing.
• Broadband subscriber management and service assurance platforms.
• Python/Ansible or network automation experience.
• CCNA, CCNP, JNCIA/JNCIP or equivalent experience.

Key skills:

Network Support Engineer, Broadband, Troubleshooting, TCP/IP.