L2/L3 Network Technical Support Engineer

Posted 11 Hours Ago
Hiring Remotely in United States
Remote
Senior level
Artificial Intelligence • Cloud • Information Technology • Internet of Things • Software
The Role
Provide post-launch technical support for broadband networks by diagnosing complex Layer 2 and Layer 3 issues across access, aggregation, routing, transport, and service layers. Investigate packet flows, logs, telemetry, alarms, and network configurations to isolate fault domains, determine root causes, and drive production incidents through resolution. Collaborate with NOC, engineering, operations, architecture, vendors, and service assurance teams in a 24x7 environment.
Summary Generated by Built In

Role: L2/L3 Network Technical Support Engineer – Broadband

Location: Redmond, WA (Onsite 5 days per week)
Client: Accenture/Amazon
Work Authorization: U.S. Citizen (USC) or Green Card (GC) holders only
Rate is on W2 only.
Requirement Type: Contractual
Contract Long term contact
Job Description:

Role Overview

We are looking for an experienced L2/L3 Network Technical Support Engineer to provide post launch technical support for a broadband service provider’s network and services. The role will be responsible for diagnosing and resolving complex network issues across broadband access,

IP, transport, and service layers.

The ideal candidate is a hands-on network engineer who can dig deep into network incidents, isolate the specific fault domain, analyze network behavior and traffic, identify root causes, and drive issues through to resolution. This role requires strong troubleshooting skills and the ability to work across multiple network domains, including access, aggregation, routing, IP services,

and customer connectivity. The engineer will work closely with NOC, network engineering, operations, architecture, service assurance, vendors, and other technical teams to resolve production issues and improve network stability after launch

Required Technical Skills

  • Strong hands-on experience troubleshooting Layer 2 and Layer 3 networks in a production environment.
  • Strong understanding of TCP/IP, Ethernet, VLANs, ARP, DHCP, DNS, IPv4/IPv6, routing, and IP connectivity.
  • Experience troubleshooting routing protocols such as BGP and OSPF/IS-IS.
  • Experience with VRFs, routing policies, NAT/CGNAT, QoS, and IP service delivery.
  • Ability to use network device CLI to investigate configuration and operational state.
  • Strong understanding of packet flows and ability to trace a problem hop-by-hop through the network.
  • Experience using packet capture and analysis tools such as Wireshark/tcpdump.
  • Experience interpreting network monitoring data, logs, alarms, interface counters, routing tables, and telemetry.
  • Ability to distinguish between customer/device issues, access-network issues, transport issues, IP/routing issues, and application/service issues.
  • Strong analytical and problem-solving skills with the ability to work from symptoms to root cause.

Broadband Experience

Experience in a broadband service provider environment is strongly preferred, including exposure to technologies such as

  • Fiber/FTTH broadband
  • PON technologies such as GPON/XGS-PON
  • OLT/ONT
  • Broadband access and aggregation networks
  • BNG/BRAS
  • DHCP and IP address management
  • RADIUS/AAA
  • CGNAT
  • Broadband subscriber management
  • VLAN/QinQ
  • MPLS/Segment Routing, where applicable
  • IPv6 and dual-stack broadband
  • DNS
  • Network monitoring and service assurance platforms

Desired Experience

  • 5+ years of experience in network engineering, network operations, or technical support.
  • Experience supporting large-scale production IP/broadband networks.
  • Experience working in a 24x7 operational environment and supporting critical incidents.
  • Experience troubleshooting multi-vendor network environments.
  • Experience with network automation or scripting using Python, Ansible, or similar technologies is a plus.
  • Experience with network telemetry, observability, and service assurance platforms is a plus.
  • Relevant networking certifications such as CCNA/CCNP, JNCIA/JNCIP, or equivalent practical experience are desirable.

The role requires someone who does not stop at identifying that "the network is down" or escalating the ticket, but can investigate the underlying network behavior and identify the specific technical failure.

Skills Required

  • U.S. citizenship or Green Card status
  • Hands-on experience troubleshooting Layer 2 and Layer 3 production networks
  • Strong knowledge of TCP/IP, Ethernet, VLANs, ARP, DHCP, DNS, IPv4/IPv6, routing, and IP connectivity
  • Experience troubleshooting BGP and OSPF/IS-IS
  • Experience with VRFs, routing policies, NAT/CGNAT, QoS, and IP service delivery
  • Ability to use network device CLI for configuration and operational-state investigation
  • Ability to trace packet flows hop-by-hop through networks
  • Experience with Wireshark or tcpdump
  • Experience interpreting monitoring data, logs, alarms, interface counters, routing tables, and telemetry
  • Strong analytical and problem-solving skills
  • 5+ years of experience in network engineering, network operations, or technical support
  • Experience supporting large-scale production IP or broadband networks
  • Experience in 24x7 operational environments and critical-incident support
  • Experience troubleshooting multi-vendor network environments
  • Broadband service provider experience, including fiber/FTTH and access or aggregation networks
  • Experience with GPON/XGS-PON, OLT/ONT, BNG/BRAS, RADIUS/AAA, subscriber management, MPLS/Segment Routing, or service assurance platforms
  • Experience with Python, Ansible, network automation, telemetry, observability, or service assurance platforms
  • CCNA, CCNP, JNCIA, JNCIP, or equivalent practical experience
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The Company
HQ: Redmond, WA
52 Employees
Year Founded: 2006

What We Do

WHO Founded in 2006 and headquartered in Redmond, WA. Our Senior Leadership team has more than 137 years of combined experience in the Telecommunications and Software Industry. Inabia is built on family values and close-knit culture. This commitment extends to the relationships we build with both our employees and our business partnerships. As a Minority Certified business, we strive to positively impact society through technology, people, and innovation. WHAT For over a decade, we have been providing powerful IT and business solutions to individuals and businesses alike. Here at Inabia, we believe that our success reflects our clients’ success. HOW We are fortunate to be situated in a city where technology and innovation is not only appreciated; but part of day to day lives. We are a growing company that has adapted and evolved our approach, helping us to exceed the ever-changing needs and requirements of our clients. WHY We are a company that fosters and values relationships, as a result many of our clients have been with us from the start of our journey. We ensure that our partners have access to best-in-class professional support, management consulting and staffing services. We make sure our consultants are carefully screened and selected based on their experience. This process ensures that we meet or exceed the specific needs of our clients.

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