Pidishetti Vinay
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Test
Engineer
Location:
Fully onsite. Warrenville, IL.
JD:
Cognizant
is looking for a test lead engineer that has 6-8 years experience SIP, IMS
Core, VoLTE/CVoIP call flow process for testing and validation. Following
skills/experience required:
• Strong
knowledge in 5G/LTE/UMTS
• VoLTE/IMS
Network Performance and Capacity Test and IMS Nodes Performance Benchmarking
Activities.
• Extensive
Hands on experience with VoLTE/IMS Call Processing and VoLTE/IMS Supplementary
Services.
• Need to
have hands on experience IMS Related Protocols Signaling Analyzing (VoLTE/IMS,
VOIP Call Flows (SIP/SDP/H.248 etc.) using Iris Analyzer and RADCOM .
• Working
experience on IMS interworking entities (BGCF, MGCF, MRFC, MRFP, AGW, IBCF,
TrGW) and interfaces.
• VOIP /
IMS call flows (expertise in SIP based call flows) - Voice and Supplementary
Services.
•
Experience with LTE core system interfaces and protocols such as S1-MME, S1-U,
S6a, S11, S5/S8, Rx, NAS, S1-AP, RRC, GTPv2c, GTP-U, SGs-AP, Gn, Gx, Ga, Sy is
desired
• In-depth
understanding of Telecom Protocols and technologies like GTPV2,SIP, RTP, IPv4
and IPv6, DIAMETER, DNS, H.248, IPSec, TCP-IP, LDAP, etc.
• Design
& Troubleshooting experience in VoLTE E2E Call Flows and RCA Debugging
Skills and IP Network design, planning and optimization
• Scripting
experience on any language like Python/Unix/Selenium and hands on experience on
Android adb command for automation and taking device logs
• Tool
Experience on Wireshark,QXDM,RADCOM,IXIA,EXPO,LANDSLIDE etc
Top Skills:
• IMS call
flows
• Telecom
Protocols and technologies like GTPV2,SIP, RTP, IPv4 and IPv6, DIAMETER, DNS,
H.248, IPSec, TCP-IP, LDAP, etc.
• IMS
interworking entities (BGCF, MGCF, MRFC, MRFP, AGW, IBCF, TrGW) and interfaces
Years of
Experience: 10.00 Years of Experience
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Skills
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YOE
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Rating/10
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Telecom
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IMS
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