IMS Automation Engineer

3 days ago

New Delhi, India L&T Technology Services Full time

About us: L&T Technology Services Limited (LTTS) is a global leader in Engineering and R&D (ER&D) services. With 816 patents filed for 57 of the Global Top 100 ER&D spenders, LTTS lives and breathes engineering and technology. Our innovations speak for themselves – World’s 1st Autonomous Welding Robot, Solar ‘Connectivity’ Drone, and the Smartest Campus in the World, to name a few.Requirement:Seeking a visionary Test Engineer with 12-15 years of impactful mobile testing experience, a profound grasp of Wireless and IMS protocol architecture, and a proven track record in developing, deploying, and maintaining cutting-edge automated test frameworks. Role & Responsibility● 12+ years of progressive experience in software testing and quality assurance, with at least 8 years focused specificaly on IMS/VoNR/VoLTE/VoWiFi/5G UE testing and automation development ● Strong, in-depth understanding of the IMS architecture, call flows, interfaces, and key protocols such as SIP, Diameter, RTP/RTCP ● Develop & Deploy the automation solution for manual test plans and test cases for IMS features (VoNR, VoLTE, ViLTE, VoWiFi, RCS) and Modem functionalities (ca l processing, data throughput, mobility, power consumption), adhering to 3GPP specifications and protocols. ● Exceptional knowledge of IP networking (TCP/IP, VLANs, routing, firewals). ● Proficient in developing automated test cases via frameworks with strong root cause analysis ski ls for script/infrastructure failures. Possesses excelent knowledge of TCP flows and data communication. Exceptional knowledge of test equipment platforms such as Anritsu, RNS with preference of Amarisoft system and work with Vendors to manage and maintain the equipment issues and software patch upgrade. ● Perform weekly regression, sanity, feature-specific, and performance testing to ensure the quality and stability of new software releases. ● Isolate, reproduce, and accurately report defects using bug tracking systems such as Buganizer. ● Ability to isolate the test failures arising from Infrastructure,scripts or the Wireless/IMS protocol stack and diligent verification of resolved issues. ● Colaborate with development and integration teams to analyze test failures using tools such as ShannonDM, QXDM, or similar proprietary tools, identifying the root cause of issues related to signaling, protocol failures, or performance.Mandatory Skill Sets :○ Minimum bachelor’s degree in Telecommunications Engineering or Computer Science with work experience of 12 to 15 years ○ Understanding of mobile wireless concepts based on 3GPP standards and protocols, and knowledge of cal flows in 3G, LTE & NR ○ Excellent Knowledge in Python, Java, Android frameworks ○ Experience in wireless modem (3G, 4G, 5G) protocol testing with mobile handset with preference in Android framework/ system testing ○ Good understanding of 3gpp specs from UE specific procedures ○ Exceptional domain knowledge of IMS protocol stack architecture /specifications-- Thanks Team HR

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