Cognizant is seeking a test lead engineer with 6-8 years of experience to perform testing and validation for SIP, IMS Core, and VoLTE/CVoIP call flows. The role requires strong knowledge of 5G/LTE/UMTS, experience with VoLTE/IMS network performance and capacity testing, IMS node performance benchmarking, and hands-on experience with VoLTE-related testing activities.
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