Requisition Id : AMD2020
Spirent land slide simulator experience ,IMS,CORE,Lab Testing
Senior wireless packet core technologist will provide technical on-site testing services for 4G EPC, 5G core and IMS at wireless operator. • Create, run and debug Landslide, 4G EPC, 5G Core and IMS testcases for the customer. • Remain active in network implementation and testing activities through customer network acceptance • LAB equipment Experience: Landslide Simulator • Performing functional, KPI and feature testing for VoLTE. • IP tracing in a complex network & multi-protocol analysis • Provide a consistent interface to the customer for all aspects of technical and engineering activity • Serve as the technical liaison on client’s responses to customer technical issues and questions • Ensuring VOLTE & LTE call flows compliant to 3GPP specifications. • Documenting clearly & accurately and escalating the discrepancies, anomalies or issues with the test case. • Testing & analyzing telephony voice services such as call waiting, call barring, 3-way calling ,etc. • Testing & analyzing the voice quality of the voice services such as CDMA, VOLTE, etc. • Testing & analyzing proper operation with various 3G and 2.5G networks. • Being a team player in the truest sense, with an ability to work with partners across different time zones. • Expert problem solver, always looking for multiple solutions. • Experience with SIP protocol & IMS based services (Preferred) • Experience in mobile interoperability LAB certification (Preferred) • Good understanding of 3GPP specs of LTE & VOLTE technology. • Good understanding of VOLTE/IMS architecture & call flows. • Provide weekly status reports to the client and customer management. • Knowledge of testing tools such as QXDM, Spirent Nomad, XCAL, Wireshark , NetScout NG1 etc. • 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 is desired Must have skills: • Sr. level Evolved Packet Core and IMS Engineering experience • VoLTE Call flow knowledge • Spirent land slide simulator experience • Strong experience writing test cases • Hands on experience with testing IMS & SIP applications • Basic IP knowledge • Installation, Upgrade, downgrade, database backup, log gathering Kafka • Data message flow configuration, modification and debugging • A good understanding and knowledge of the Linux operating system including the ability to install packages and apply updates from the command line. Nice to have skills: • Experience creating automation test scripts in Python (preferred), TCL, Perl, etc. EPC and IMS Landslide skills are mandatory
CDG ISO 14001:2004
Callas/Fort with Minority Supplier Development Council
NCTRCA Minority Buiseness Enterprise Certification
CDG OHSAS 18001:2007
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