SGSN MME tester Redmond,WA SGSN MME tester at Redmond,WA for Telecom client Job Description: Years of Experience: 5 – 8 years Testing Tools: Wireshark, JDSU, Tektronix G10 Mandatory Skills: - Strong in SGSN and MME network architecture - Knowledge of 3GPP based architecture and call flows, 3GPP/IETF standards, UEs and tools used in the implementation and operation of SGSN and MME network elements. Specific experience developing and executing test object lists for testing of core elements using real UEs and protocol analyzers. - In depth knowledge and strong experience with Ericsson, NSN, and ALU SGSN and MME node CLI. - Knowledge of protocols (IP, TCP, UDP, SCTP, S1AP, Diameter, GTP, M3UA, SCCP, RANAP, GMM, SM) and high level understanding of OSPF, MPLS, VRRP, SSH, SNMP, and L2 VLAN). - Specific experience testing network functions to include paging, intra and inter technology mobility, session management, and QOS. - Hands on experience integrating network hardware platforms including SGSN and MME elements. - Knowledge of DNS, IP addressing, NAT, load distribution. - Experience using Microsoft Office tools including but not limited to Word, Excel, PowerPoint, and Visio. - Strong verbal and written communication skills a must.

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