Legend Solutions LLC

Company Description

Title                        : App and service testing & LTE

Location                 : Redmond, WA

Exp                          : 2-3 Years

Job Description:

• Experience with Wireless Data Core networks, Architecture, Protocols and Interfaces
• Mobile Core Network which includes MME, SAEGW and PCRF in a hybrid environment (native with virtual)
• Hands on experience with Device testing.
• MCPTT/EPTT platform/network/call flow knowledge
• Good understanding of Wireless Operator end to end Network
• 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
• Excellent Understanding of 3GPP standards and protocols like GTPV2, Sip and Diameter.
• Experience in IMS Core entities (Knowledge of P/I/S-CSCF, HSS, SLF) and VoLTE.
• IMS call flows (expertise in SIP based call flows) - Voice and Supplementary services.
• Expertise in creating test plans for system level, subsystem level and feature level testing.
• Understanding of Software Testing Life cycle

Good Knowledge in TCP/UDP/SCTP, IP protocols