Lead Network Test Engineer

Overview

Hybrid
Depends on Experience
Contract - Independent
Contract - W2
Contract - 12 Month(s)
No Travel Required

Skills

Core IMS
4G EPC
5G Core
SIP
VoLTE
VoNR
Diameter
HTTP/2
Non-3GPP access protocols
3GPP call flow knowledge
Spirent Landslide
Spirent TestCenter
Spirent Avalanche
Spirent CyberFlood
Keysight IxLoad
Keysight LoadCore
IXIA
Wireshark
IPv4
IPv6
TCP/IP
Subnetting
VLANs
OSPF
BGP
Netscout
nGenius
IRIS
REST API validation
SOAP validation
Python scripting
Shell scripting
Automation frameworks
Grafana
Nagios
Linux
VMware
OpenStack
Jira
Confluence
Network monitoring
Test case design
End-to-end protocol validation

Job Details

Role: Lead Network Test Engineer

Location: Bellevue, WA (Hybrid)

Duration: 12+ Months

Must have:

  • Need profiles with Core IMS background
  • Expertise with Landslide test tool and any other Spirent tools: 8+ Years
  • Expertise with Keysight IxLoad/LoadCore test tool : 8+ Years
  • Validate protocols and call flows for 4G EPC, 5G Core, Diameter, SIP (VoLTE, VoNR), and HTTP2: 8+ Years
  • Experience/Knowledge of Rest API/SOAP validation: 5+ Years
  • Knowledge of Netscout, IP protocols : 5+ Years

Requirements:

  • Test Tools Expertise:
    • Proficient with Spirent Landslide and other Spirent testing tools.
    • Expertise with Keysight IxLoad/LoadCore test tools.
  • Protocol Knowledge:
    • Strong hands-on experience with 4G EPC, 5(5G Core), Diameter, HTTP2, SIP flows (specifically for VoNR and VoLTE), and Non-3GPP access.
    • Deep understanding of 3GPP specifications for 4G and 5G calls flows.
  • API and Validation:
    • Solid experience in REST API and SOAP validation.
  • Networking Fundamentals:
    • Proficient in basic IP protocols (IPv4/IPv6, subnetting, VLANs).
    • Familiar with Netscout network monitoring tools.
  • Monitoring & Automation:
    • Working knowledge of Grafana, Nagios, and other system administration/monitoring tools.
    • Experience in scripting and programming to automate system management and test tool execution.
  • Project Leadership & Collaboration:
    • Strong interpersonal and project coordination skills.
    • Ability to collaborate with cross-functional teams and lead troubleshooting sessions.
    • Comfortable managing projects from initiation to completion.
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