Mobile Lab Tester

Washington  ‐ Onsite
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Keywords

Description

Roles and Responsibility

End-to-end testing support in a real network test lab with SGSN as the target product under test.

Implementation, integration and end-to-end testing of multi-vendor 3G/UMTS(SGSN) and 4G/LTE(MME) Evolved Packet Core networking equipment in Mobile Lab

Build the required test lab support specific software and feature related certification activities for the SGSN products and MME platforms as needed, bring-up the nodes with the required software release, integrate, configure and Perform E-2-E Service testing

Support troubleshooting of interoperability and end-to-end service related integration and test activities for multi-vendor products and related elements in the lab. 

Test Plan development and test execution in end-to-end lab environment

Support troubleshooting of interoperability and end-to-end service related integration and test activities

Maintain and update as-built documentation and annotated call flow, testing and troubleshooting guides for use by other lab testing and support teams.

Raise defects from system integration testing perspective and Anchor the triage meetings between multi-vendor, test team and AT&T.

Must Have

Experience in Product Testing of  NSN/Ericsson SGSN.

Experience in all the functionalities of SGSN Product, protocols & Interfaces

Knowledge of protocols (IP, TCP, ATM,  UDP, SCTP, Diameter, M3UA, SCCP, RANAP, GMM, SM)

Knowledge of interfaces (Gn, Gx, Ga)

Good working knowledge on wireless networks with 3GPP standards in  UMTS Technology

High level understanding of OSPF, MPLS,  VRRP,  SSH, SNMP, and L2 VLAN.

Hands on experience integrating network hardware platforms including SGSN  elements

Understanding on various LTE  interfaces & procedures/protocols - (S3, S4)

Knowledge of complimentary Packet Core Applications; GTP-C, GTP-U, RADIUS, LDAP, DIAMETER, DNS.

Specific experience testing LTE network features/services: VoLTE, CSFB, SRVCC, QoS, Inter/Intra RAT handovers, Traffic  Shaping, Queuing

Nice to Have

Complete understanding of LTE E-2-E Network and IP Routing

Working knowledge on GSM/UMTS/LTE packet core network testing

Hands-on experience of testing E-2-E Services in UMTS, LTE

Hands-on experience ins using the interface message analyzers - Wireshark, NetMeter or any commercial tools (K12xx, Nethawk EAST)

Specific experience troubleshooting network services and equipment and identifying and correcting problems.

Specific experience with test equipment from Spirent, IXIA, ANUE, JDSU.

Start date
n.a
From
Systel Inc
Published at
28.09.2013
Project ID:
604964
Contract type
Freelance
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