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Protocol Test Engineer

Job

Tech Mahindra (Americas) Inc.

Redmond, WA (In Person)

Full-Time

Posted 2 weeks ago (Updated 1 week ago) • Actively hiring

Expires 6/23/2026

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Job Description

SME in wireless and Wireline technologies. Expertise on 3G,4G,5G domains and its allied solutions Expertise in the 3GPP standards and architecture and procedures. Expertise on the NAS, IMS, SIP, VoIP protocols and operations. Experience in various interface log analysis and cross checking with configs from different node like

AUSF, AMF, UPF, SMF, UDM, NRF, NEF

etc . Understanding of Call flow and protocols, identify any issues per standards. Investigating and analyzing interconnectivity with other LTE network nodes such as IMS-P-CSCF, MSP and charging systems through different network interfaces such as: Gx, Rx, Sp, Sd, Gy and Sy. Knowledge of the OSS-BSS is a plus Knowledge of Radius and Diameter Protocols Understanding CUPS architecture and troubleshooting expertise. Hands on experience with working on tracing tools like

IRIS G-10

, Radcomm, Wireshark etc. Write Test plan and test cases for any device under Test. Work closely with development team and other stakeholders to provide the solution. Execution of enhancements/feature functions to validate User Experience improvements/goals. Bachelor s or master s degree in computer science, Computer Engineering or related technical field desired Python and Prompt Engineering. At least 6 years of experience in the relevant role Supporting, prioritizing, planning and coordinating testing activities and maintenance windows. Good communication skills are mandatory