Telecom Test Engineer

Lead Network Test Engineer/ Telecom Test Engineer / Network Test Automation Engineer

Location – Bellevue, WA

Number of days onsite - 3

Mandatory Areas

• 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

Mandatory Skills:

• Expertise with Landslide test tool and any other Spirent tools
• - Expertise with Keysight IxLoad/LoadCore test tool
• - Protocols: 4G EPC, 5GC, Diameter, http2, SIP flows for VONR and VoLTE, Non-3GPP access
• - 3GPP spec awareness for 4G, 5G call-flows
• - Experience/Knowledge of Rest API/SOAP validation
• - Working knowledge of Basic IP protocols (IP, subnetting, vlan, etc)
• - Knowledge of Netscout, IP protocols (v4 and v6)
• - Additional scope: Knowledge/System Admin tools such Grafana, nagios etc..
• - Programming for streamlining system management and test tool execution
• - Interpersonal skills & Project management: Comfortable reaching out to different teams to realize a project from start to finish, co-ordinate troubleshooting sessions.

Position Overview:

This role involves testing and validating telecom network infrastructure and services, particularly in the 4G and 5G domains. The engineer will work with industry-standard testing tools (e.g., Landslide, Spirent, IxLoad), simulate complex call flows, and ensure conformance to 3GPP specifications. The responsibilities include traffic generation, protocol testing, system monitoring, and automation of test scenarios to evaluate performance and scalability.

Key Responsibilities:

• • Execute and automate performance and functional tests using Spirent Landslide, Keysight IxLoad, and related tools.
• • Validate protocols and call flows for 4G EPC, 5G Core, Diameter, SIP (VoLTE, VoNR), and HTTP2.
• • Interpret and apply 3GPP specifications to ensure test cases and network behavior are standards-compliant.
• • Perform API validation (REST/SOAP) and basic network troubleshooting (IP, VLANs, subnetting).
• • Monitor systems using tools like Grafana and Nagios.
• • Use scripting or programming to automate system and tool operations.
• • Collaborate cross-functionally with multiple teams for test planning, execution, issue resolution, and project delivery.

Ideal Candidate Profile:

• • Strong hands-on experience with telecom test tools and traffic generators.
• • In-depth knowledge of mobile network architecture (4G/5G).
• • Comfortable working in a multi-team, collaborative environment with some project management or coordination responsibilities.
• • Capable of both manual and automated test execution, with solid scripting skills for automation.

All your information will be kept confidential according to EEO guidelines.