Inabia Solutions and Consulting, Inc.
L2/L3 Network Technical Support Engineer
Be an Early Applicant
Provides post-launch L2/L3 technical support for broadband networks. Diagnoses complex issues across access, aggregation, routing, IP, transport, and service layers; analyzes traffic, configurations, telemetry, logs, and packet captures; isolates fault domains and determines root causes. Collaborates with NOC, engineering, operations, architecture, vendors, and service assurance teams to resolve production incidents and improve network stability in a 24x7 environment.
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.
Inabia Solutions and Consulting, Inc. Redmond, Washington, USA Office
Redmond, WA, United States
Similar Jobs
Artificial Intelligence • Cloud • Information Technology • Internet of Things • Software
Provides hands-on L2/L3 troubleshooting for production broadband networks, investigating connectivity, routing, latency, packet loss, subscriber access, and service performance. Analyzes packet captures, logs, alarms, counters, and routing tables; performs root-cause analysis; coordinates with NOC, engineering, operations, and vendors; supports upgrades, migrations, maintenance, launches, and operational documentation.
Top Skills:
AaaAnsibleArpBgpBngBrasCgnatDhcpDnsEthernetFtthGponIpv4Ipv6Is-IsMac LearningMplsNatOltOntOspfPythonQinqQosRadiusStpTcp/IpTcpdumpVlansVrfsWiresharkXgs-Pon
Artificial Intelligence • Cloud • Information Technology • Internet of Things • Software
Provides L2/L3 production support for broadband networks, troubleshooting access, aggregation, transport, routing, IP services, and subscriber connectivity. Diagnoses complex incidents using CLI, packet captures, logs, telemetry, and monitoring tools; isolates faults, performs root-cause analysis, drives resolution, and develops runbooks. Collaborates with NOC, engineering, architecture, operations, vendors, and service assurance teams during critical incidents, maintenance, upgrades, and service launches.
Top Skills:
AaaAnsibleArpBgpBngBrasCgnatDhcpDnsEthernetFtthGponIpv4Ipv6Is-IsMplsNatOltOntOspfPythonQinqQosRadiusSegment RoutingStpTcp/IpTcpdumpVlanVrfWiresharkXgs-Pon
Cloud • Information Technology • Productivity • Security • Software • App development • Automation
Lead the design, development, deployment, and scaling of machine learning models and AI systems powering Atlassian products. Responsibilities include architecture design, experimentation, evaluation, collaboration with product and engineering teams, technical mentorship, and contributing to company-wide AI strategy. The role focuses on search, agentic AI, language models, and intelligent product capabilities.
Top Skills:
Agentic AiSparkAWSDatabricksEmbedding ModelsJavaKotlinLarge Language ModelsPythonRanking ModelsSQLTypescript
What you need to know about the Seattle Tech Scene
Home to tech titans like Microsoft and Amazon, Seattle punches far above its weight in innovation. But its surrounding mountains, sprinkled with world-famous hiking trails and climbing routes, make the city a destination for outdoorsy types as well. Established as a logging town before shifting to shipbuilding and logistics, the Emerald City is now known for its contributions to aerospace, software, biotech and cloud computing. And its status as a thriving tech ecosystem is attracting out-of-town companies looking to establish new tech and engineering hubs.
Key Facts About Seattle Tech
- Number of Tech Workers: 287,000; 13% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Amazon, Microsoft, Meta, Google
- Key Industries: Artificial intelligence, cloud computing, software, biotechnology, game development
- Funding Landscape: $3.1 billion in venture capital funding in 2024 (Pitchbook)
- Notable Investors: Madrona, Fuse, Tola, Maveron
- Research Centers and Universities: University of Washington, Seattle University, Seattle Pacific University, Allen Institute for Brain Science, Bill & Melinda Gates Foundation, Seattle Children’s Research Institute
