Reshma N

nreshma0623@gmail.com                                                                                                                      Mob: 571-306-0070

                                                                                                                                  

 

Experience SUMMARY:

 

·   7+ year hands-on experience integrating and testing small, medium, and large scale wireless networks.

·   Thorough understanding of 3G and 4G Technologies (LTE, UMTS, VOIP, CDMA) and strong IP background.

·   Sound knowledge on 3GPP specification work concerning LTE/EPC CORE Network.

·   Good Experience &Knowledge LTE RAN, Radio Interface, Protocol stacks and handovers in LTE (S1 And X2 Handover).

·   Good Experience and knowledge in VoLTE, IMS, SIP.

·   Thorough understanding of protocols such as GTPv2C, S11, S1-MME, S6a, SGi, Gx, Rx, SGi, S5/S8, S10.

·   Perform protocol captures and trace log analysis using different network analyzer tools such as Wire Shark, Iris and JDSU tools to read network traces to understand the failure reasons

·   Familiar with all the call flows, call tracing, call waiting and call forwarding procedures.

·   Good knowledge on feature testing of LTE EMS.

·   Good knowledge and experience of eNodeB, RNC, MME, SGSN, GGSN, S-GW and P-GW.

·   An innovative professional with strong testing, analytical, communication and organizational skills that adapts quickly and works well with others.

 

Technology & Tools

 

Wireless	LTE, VoLTE, IMS, SRVCC, LTE, Diameter, Radius, GTP-C, GTP-U, 3GPP standards, IPsec.
Network Tools	JDSU, Iris View, Wire shark Sniffer, QXDM.QCAT, Net scout Monitoring Tools,IPerf,Winscp,Putty,Filezilla
Networking protocols	TCP/IP, UDP, IPv4, IPv6, RIP, OSPF, EIGRP, BGP, Cisco IOU (IOS on UNIX)
Hardware Equipments	Cisco Switches, Routers and Juniper FW, ALU, NSN.

 

 

Work Experience:

 

Wireless Network Engineer:

LTE Integration Testing

 

MetroPCS                                                                           

  02/2011-Present

 

·   Working as a Wireless network engineer responsible for E2E LTE Network Integration and testing

·   Supporting RAN Testing & Device Testing configuration.

·   Working with various platform owners in the internal teams to accomplish LTE lab deployment and coordinate testing as well as troubleshooting. 

·   Verification of interfaces and protocols such as GTPv2C, S11, S1-MME, S6a, SGi, Gx, Rx, SGi, S5/S8, S10, Gn, and among others.

·   Perform protocol captures and trace log analysis using different network analyzer tools such as WireShark.

·   Knowledge of Traffic Mix Optimization, Mobility/Handovers for LTE with UE traces on Wireshark on SCTP and Diameter. IOT, Interoperability Tests Experience with different vendor products.

·   Troubleshooting all kind of Alarms.

·   Down Load and Up Load Peak Throughput UDP/TCP at cell edge, middle and good conditions.

·   Down Load and Up Load Cell Average Throughput Static, User-Plane and Control-Plane Latency Test.

·   Intra-SGW Intra-eNB success rate, Dedicated Bearer Establishment Success Rate, Attach Establishment Success Rate, Paging Success Rate.

 

 

LTE Test Engineer:
OnStar                                                                                                          5/2010 - 01/2011
M2M Over LTE

 

· Strategizing and preparing E-E Test Scenarios, Test Case Development for VoLTE, VoIMS, CSFB, I-RAT, GSM, GPRS, and UMTS.

· Strategizing and preparing E-E Test Scenarios, Test Case Development for SMS over LTE, UMTS, GSM, GPRS, HSPA, and CDMA.

· Analyzing the  Global market trend of M2M

· Analyzing logs for E-E calls scenarios

· Good exposure to Qualcomm MDM9615 modem Architecture, IMS, SMS Stack, VoLTE, R&S CMD500 Simulator.

 

 

LTE System Test Engineer

LTE Protocol Testing (NEC)                                                                  01/2009-04/2010

 

 

·   Analyze test results and investigate issues pertaining to L2/L3 protocol layer, identifying root cause according to latest 3GPP spec and working closely with network engineers to debug and resolve those issues pertaining to OEM/network side. 

·   Execute test cases like: Attach, Detach, PDN connectivity/disconnectivity, bearer establishment, ANR for intra and inter frequency HO in the lab with IPv4/ IPv6 performance test cases including UDP, TCP for various open/closed loop MIMO, SIMO configurations in the lab, IRAT (LTE-eHRPD), pre-sanity tests. 

·   Creation of test plans for regression and software/hardware features, review and update technical documentation based on test results referring to advanced 3GPP specifications. 

·   Good exposure of wireless standards and industry organizations such as 3GPP, 3GPP2, and knowledge of different LTE protocol layers (NAS, RRC, PDCP, RLC, and MAC & PHY).

·   Apply excellent analytical and problem solving skills to identify problems quickly and work with OEM and internal teams to resolve issues to meet target launch dates and delivery commitments. 

 

 

System Test Engineer

Nortel Networks

UMTS SGSN System Testing        

          06/2007 – 12/2008

                                                                                                                                                               

·               3G SGSN Commissioning and Integration.

·               SG6 to SG7 Upgrades (Hardware and Software) Support.

·               Tier 2 Fault Management and Maintenance Support, ECC Support.

·               Configuration Management Support, CQI Support (Data-fills).

·               Packet Core Network Troubleshooting, Resolve Ticketing system Support.

·               Provide troubleshooting of NE's (e.g. bus cabling, redundant plug in units, hard disks)

·               Performed application testing in Blackbox Testing.

·               Performed functional testing.

·               Designed Test Cases for various features.

·               Responsible to execute Test Cases.

·               Responsible for reporting bugs using defect tracking system.

·               Involved in Defect reporting, Preparing bug summary report and Analyzing the requirements and preparing the scenarios to test same.

·               Preparing the Test Plans and participating in review of the Test Plans.

·               Handled responsibilities of writing testing issues and verifying fixes for the same.

·               Assigned responsibilities of providing effective support in end to end troubleshooting

.

 

System Test Engineer

Nortel Networks

UMTS RLC/MAC protocol stack testing                                                                       3/2006 - 5/2007

 

·               Understanding the functionality of the RLC and MAC Layer.

·               Prepared test cases for RLC conformance testing.

·                 Responsible to execute Test Cases.

·                 Responsible for reporting bugs using defect tracking system.

·                 Involved in Defect reporting, Preparing bug summary report.

·                 Performed functional testing.

·                 Generated performance evaluation report.

·                 Maintaining close liaison with team members and developers in order to ensure the requirements are fulfilled.
 

 

Educational:

 

     Master of Science (MS) in Computer Science.