L2/L3 Network Technical Support Engineer – Broadband | Redmond, WA
Hi,
We are hiring an experienced L2/L3 Network Technical Support Engineer for a long-term contract opportunity supporting a broadband network project.
Position Details
Location: Redmond, WA (Onsite, 5 days per week)
Employment Type: Long-term Contract on W2
Work Authorization: US Citizen or Green Card only
Role Overview
We are looking for a hands-on network engineer with strong L2/L3 troubleshooting skills and experience supporting production networks. The role involves investigating broadband connectivity issues, analyzing network traffic, identifying root causes, and coordinating with engineering and operations teams to resolve complex incidents.
Key Responsibilities
Troubleshoot production network issues involving connectivity, latency, packet loss, routing, and network performance.
Investigate Layer 2 technologies, including Ethernet, VLANs, QinQ, ARP, MAC learning, and STP.
Troubleshoot Layer 3 technologies, including IPv4/IPv6, BGP, OSPF/IS-IS, VRFs, DHCP, DNS, and NAT.
Analyze packet captures, network logs, alarms, interface counters, and routing tables.
Use network CLI tools and monitoring platforms to isolate faults and validate resolutions.
Investigate broadband subscriber connectivity, IP assignment, authentication, CGNAT, and Internet reachability.
Perform root-cause analysis for recurring and high-impact incidents.
Collaborate with NOC, network engineering, operations, and vendor teams.
Support network upgrades, migrations, maintenance, and service launches.
Maintain troubleshooting documentation and operational procedures.
Required Skills and Experience
5+ years of experience in network engineering, network operations, or technical support.
Strong hands-on experience troubleshooting Layer 2 and Layer 3 networks in production.
Solid understanding of TCP/IP, Ethernet, VLANs, ARP, DHCP, DNS, IPv4/IPv6, and routing.
Practical experience with BGP and OSPF/IS-IS.
Knowledge of VRFs, routing policies, NAT/CGNAT, QoS, and IP services.
Experience with Wireshark, tcpdump, packet analysis, network logs, and monitoring tools.
Ability to perform end-to-end packet-flow analysis and identify root causes rather than simply escalate incidents.
Experience working with cross-functional teams and network vendors.
Preferred Broadband Experience
Experience in an ISP, telecommunications, or broadband service provider environment is highly desirable.
Exposure to FTTH, GPON/XGS-PON, OLT/ONT, BNG/BRAS, RADIUS/AAA, subscriber management, VLAN/QinQ, MPLS, IPv6, and network service assurance will be beneficial.
Experience with network automation tools such as Python or Ansible, along with CCNA, CCNP, JNCIA, or JNCIP certification, is an added advantage.
Candidates with strong hands-on L2/L3 troubleshooting skills, production incident management experience, and broadband or ISP network exposure will be given preference.
Thank you,
Skills Required
- 5+ years of experience in network engineering, network operations, or technical support
- Hands-on experience troubleshooting Layer 2 and Layer 3 production networks
- Understanding of TCP/IP, Ethernet, VLANs, ARP, DHCP, DNS, IPv4/IPv6, and routing
- Practical experience with BGP and OSPF/IS-IS
- Knowledge of VRFs, routing policies, NAT/CGNAT, QoS, and IP services
- Experience with Wireshark, tcpdump, packet analysis, network logs, and monitoring tools
- Ability to perform end-to-end packet-flow analysis and identify root causes
- Experience working with cross-functional teams and network vendors
- Experience in an ISP, telecommunications, or broadband service provider environment
- Exposure to FTTH, GPON/XGS-PON, OLT/ONT, BNG/BRAS, RADIUS/AAA, subscriber management, VLAN/QinQ, MPLS, IPv6, and network service assurance
- Experience with Python or Ansible network automation tools
- CCNA, CCNP, JNCIA, or JNCIP certification
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.
