Lead Test Engineer for VoLTE/IMS & 5G Core Validation

TechDigital Group; Warrenville (IL); Sur place; USD 100 000 - 120 000; Plein temps

Résumé du poste

TechDigital Group is seeking a Test Lead Engineer with strong expertise in SIP, IMS Core, and VoLTE/CVoIP processes. You should have 6-8 years of experience and a solid grasp of telecom protocols.

The role demands extensive hands-on experience with VoLTE call processing and strong analytical skills related to IMS protocols. You'll work with VoLTE E2E call flows and contribute towards testing and validation projects.

Qualifications

• 6-8 years of experience in SIP, IMS Core and VoLTE/CVoIP.
• Strong knowledge of telecom protocols and scripting.
• Experience analyzing IMS-related protocols.

Connaissances

5G/LTE/UMTS

VoLTE/IMS Network Performance

IMS Call Processing

SIP protocol signalling

IMS interworking entities

Telecom protocols

IP network design

Scripting in Python/Unix/Selenium

Wireshark

Description du poste

D:
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