SUSHEEL KUMAR

 

[ susheel.kumar@inbox.com / (C) +1 469 740 4574 ]

 

SUMMARY

 

·               Greater than 14 years of Experience (Development 6+ and Testing 8+) in IT industry with focus on Requirements Analysis, Design, Development, Testing, Production Support of Telecom / Networking/ Client Server Applications

·               Involved in all phases of the SDLC from Requirements Analysis/Design/Coding to Customer Acceptance Testing, Deployment and Production Support ( MME/HLR/SCP/SMSC )

·               System/Regression/SOAK/Performance/Acceptance/IOT/FIT Testing of High End Wireless Telecom Systems ( MME, S-GW, P-GW, PCRF, BSC/MSC/HLR/SCP/SMSC )

·               Experience in OPENSTACK based Virtualized Infrastructure testing

·               Machine to Machine (m2m) IOT for Aeris communications involving Franklin UE, Samsung eNodeB/MME/SGW, Ericsson HSS, Cisco PGW, Openet PCRF on LTE Network

·               Hands on S6a interface (AIR/AIA,NOR/NOA,ULR/ULA,CLR/CLA,PUR/PUA) Diameter message testing between MME and HSS; S1-AP ( eNodeB and MME ) ; S11 ( MME and S-GW ); S5 ( S-GW and P-GW);  Gx ( PGW and PCRF ); Rx ( PCRF and CSCF ) ; 

·               End to End Call flow testing (2G/3G/4G) at AT&T RTC/WTC Labs, WA and Sprint STIC Lab, KS

·               VoLTE call flow demo/testing at Sprint STIC Lab, KS

·               Hands on Testing IS-41C – CDMA MAP ( AUTHREQ, QUALREQ QUALDIR, REGNOT, REGCAN, LOCREQ, ROUTEREQ, SMSREQ, SMSNOTREQ, SMDPP ) GSM MAP (SRI, PRN, MSRN, RCH, UPDATE/CANCEL LOCATION )

·               Experience in IOT involving Ericsson MSC, NSN MSC, Nortel MSC, ALU Call Server, Cisco MME, Ericsson eNodeB, HP HLR as part of testing Circuit Switched Fallback Feature on LTE Network

·               Installation/Configuration/Troubleshooting OpenStack on UCS M4 blades

·               Deployment of Cisco CPS(PCRF Suite) on OpenStack ( Juno/Kilo), Orchestration using heat template

·               Add/Modify Custom Diameter AVP using dsTest and validate the AVP using trace/tcpdump

·               FOA( First Office Application ) and New Product Controlled Introduction/Deployment of SMSC at Sprint

·               End to End SMS flow testing (Onnet, Offnet MVNO) at Sprint, OP, KS, USA

·               System Integration of SMSC on a Multi Vendor platform involving STP( ALU-SIGTRAN), MSC( NORTEL-SS7 SIGTRAN IS41 MAP), SPS( LDAP ), Prepaid Billing( Amdocs-Diameter CCR/CCA), BT( TMM Statistics-Oracle 11g), DMD( CDR-RTLF), SLP( GTI-TCP/IP), AAG( LA-SMPP)

·               Hands on Experience in GSM MAP Call flow tracing using Agilent Access7 on MSC/STP/HLR/SCP

·               UE call flow Analysis(3G/4G)/Troubleshooting using Qualcomm QXDM, PRL update using QPST

·               Attach Latency, Idle to Active latency, Network latency, Throughput ( UL/DL ) Testing on LTE

·               Creation/Execution of MOP on Acision SMSC Production Server for Feature upgrade and Monitor the system for critical alarms/events Post Upgrade 

·               Detection of Memory Leaks, Deadlocks, Process and Resource(cpu, network) Utilization along with solid Debugging Skills at Source Level ( Breakpoint, Single Stepping using gdb, dbx, Sun Workshop ) and Binaries ( Extensive Sub System Level Tracing, Application ALARM Monitoring, Event and Log Analysis )

·               Demonstrated proficiency in identifying faults and preparing root cause analysis ( RCA ) along with the Workaround for Top Management related to System Crash within the time period specified in SLA

·               Expertise in Install/Upgrade/Configuration/Defect Reproduction/Patch Install/Troubleshooting of High End GSM/CDMA Telecom Systems and Test Lab ( BSC/MSC/HLR/SCP/STP )

·               Developed INET scripts for SS7 Stack Testing ( MTP-L2/L3 )

·               Created scripts for Startup/Graceful Shutdown of Applications along with NODE Recovery Procedure on SMSC v5.4

·               Hands on Knowledge using SS7 Traffic Generators/Test equipment INET/Catapult/TGEN

·               Experience in troubleshooting ISUP, MAP, INAP, SIP Call flows

·               Configuration/Set up of SS7 Nodes for Testing (Point Code/ Link/ Link set / Route Set / DPCRS/ SSN )

·               Experience in HLR Subscriber Database Migration during Capacity Expansion

·               Hands on HLR/SCP Subscriber Provisioning ( O&M )

·               Testing of Transcoders ( 3GPP ) present in Base Station Controller on Ericsson BSC

·               Creation/Analysis of STS Measurement Reports at 5/10/15/30/60 minutes interval for Ericsson MSC

·               Developed Scripts with INET for Automated SS7 ISUP call flow Testing(IAM,ACM,ANM,REL,RELC)

·               Billing Center / Call Detail Record Management on Ericsson MSC

·               Strong skills to Author and Review Technical Documents such as Test plan, Test Spec, Test Strategy, Traceability Matrix and Defect Reports from the Requirements Document/SOW

·               Experience in SOA, WSDL, XML, and SOAP Messaging along with Web Services

·               Solaris System Crash dump analysis using ISCDA

·               Test Script/Suite Automation using Perl ( File/Pattern Matching/Sockets/DBI ) for Alcatel CDMA HLR

·               Excellent in C/C++/Java programming on UNIX along with Perl/Shell Scripting and Database development using SQL/Pro*C/Oracle 9i/MYSQL

·               Experience with STL and multi-threaded ( pthread ) programming in UNIX environment

·               Working Knowledge of the various UNIX IPC mechanism including TCP/UDP Sockets, Message Q, Shared Memory, Pipes, etc.,

·               Development of switch based MMI (Man Machine Interface) programs using C under CEKOS

·               Development of Adjunct based Applications using C++ running Sun Solaris OS

·               Development of Custom ETL for data migration from Legacy Systems ( mySQL 4.1 to Oracle 9i ) using C++ for Verizon SubNet Manager

·               Porting of call processing programs from 600GT ( Alcatel MegaHub STP ) using C

·               Defect Management/Tracking using DDTS (Distributed Defect Tracking System), MHWeb

·               Experience in using Mercury Quality Center as Test Management tool

·               Version control using Clear Case and Subversion (SVN)

·               Training the End Users on Product and Features along with Knowledge Transfer (KT)

·               Experience in Leading/Mentoring a midsized groups of Engineers

·               Excellent Oral and Written communication skills

·               Worked with various Equipment Manufacturers/Service Providers including DSC, Alcatel, Motorola, Ericsson, Cisco, Samsung, AT&T, Sprint, Qwest, MCI Worldcom, Verizon, KDDI

 

TECHNICAL SKILLS

 

Operating Systems	UNIX – Sun Solaris 2.5.X, HP-UX 11i LINUX -  Red Hat 7.1, SuSE 11, CentOS 6; VMware vSphere, Windows 2008 Server, Windows 7 OpenVMS – v8.3, OpenStack, RTOS – CEKOS
Hardware	HP AlphaServer ES45, HP Integrity cx2620, Sun Netra t5440, Dell PowerEdge R720, Sun Blade 1500, Cisco UCS M4, PDSi TS-1000, Stratus – Fault Tolerant system
Languages	C, C++, JAVA, Pro*C
Protocol	SS7, EIA/TIA IS-41, AIN, MAP, INAP, MTP-L2, L3, ISUP, TCAP, SCCP, BSMAP, SIGTRAN, S1AP, X2AP, GTPv2, VOIP, SIP, IMS, IS-637-A, UDP, TCP/IP, SCTP, M3UA, SNMP,SMPP, SMTP,DIAMETER, HTTP
Databases	RBTree, Ctree, MYSQL 4.1, ORACLE 9i, 11g, openLDAP, Mongo 2.6.3
Cloud Systems	OpenStack(Juno/Kilo), VMWare, ESXi 5.5, vSphere
Test Equipment/Bulk Traffic Generator	INET spectra, Catapult, MGTS, TGEN, dsTest
Source Level Debugger	DSC DEX Debugger, gdb, dbx, Sun Workshop
Scripting Language	Perl, Bash
C/C++ Libraries	Rogue Wave, STL, POSIX – pthread
Version control	Clear Case, Subversion (SVN), SDE
Bug/Defect Management	Ddts, Mercury Test Director, Rational Clear Quest, MHWeb, cdets
Middleware	CORBA – omniORB, seORB
Web Server	Apache 2.2, BEA Weblogic 8.1
Web Technologies	SOA, SOAP, REST, CORBA, XML, Web Services
Test Automation/Web Tools	Mercury QC – Test Director, TM4E
SQL Editor/Tools	Aqua Data Studio 4.7, TOAD 8.5
Utilities/Packet Analyzer	Wireshark 1.12.1, WinFIOL 7.2, XCAL,JDSU Signaling Analyzer 7.0, iperf, adb
UE Diagnostic Tools	Qualcomm QXDM, QPST, QCAT
Switch/Router	Cisco ASR 901, Juniper M40, M320
Wireless (2G/3G/4G/LTE) and Wire line Telecom Product Expertise	STP – Alcatel INFusion STP SCP - Alcatel PHS SCP HLR/AuC – Alcatel A8791 ANSI-41, A1430 ( CDMA ), Ericsson AXE 09B HLR-BS ( AXE09B- APZ 21260, APG43 ) HLR/HSS – HP OpenCall HLR,Ericsson HSS BSC – Ericsson AXE 810 BSC ( APZ 212 33, APG40 ) MSC –Ericsson AXE 09A MSC-BC(APZ 21260, APG43), NSN DX200, NORTEL ATCA, ALU Call Server MME – Cisco, Samsung MME eNodeB – Ericsson RBS 6000, Samsung eNodeB, S-GW/P-GW – Cisco ASR 5500, Samsung S/P-GW BTS–Samsung Multi Modal Base Station(800/1900Mhz) PCRF – Cisco QPS 9.0 Softswitch – Samsung WSS, Ericsson MSC-S BC Media Gateway – Samsung MGW Signaling Server – DSC MegaHub 600E SMSC – Acision SMSC V5.2, V5.4 GSM Call Tracer/Analyzer – Agilent Access7 SS7 Bulk Call Generator – INET,Catapult/MGTS,TGEN SMS Load Generator – Henkel hTk Legend

 

 

 

BACHELOR OF SCIENCE (PHYSICS),           MADURAI KAMARAJ UNIVERSITY, INDIA, 1992

MASTER OF COMPUTER APPLICATIONS,   BHARATHIDASAN UNIVERSITY,     INDIA, 1997

 

AUGUST 1997 TO MAY 2007, SENIOR TECHNICAL LEAD, TECH MAHINDRA LTD., CHENNAI, INDIA

JUNE 2007 TO MAR 2011, PROGRAMMER ANALYST, VED SOFTWARE SERVICES, MICHIGAN, USA

APRIL 2011 TO MAR 2013, SOLUTION ENGINEER, ACISION LLC, PLANO, TX

MARCH 2013 TO CURRENT, Sr. SOLUTION ENGINEER, I&I SOFTWARE INC, BETHLEHEM, PA, USA

 

PROJECT EXPERIENCE

 

Client: CISCO, San Jose, CA         

Project: Cisco Quantum Policy Suite ( QPS )

·   Call flow testing between PGW/PCRF-Gx ( CCR-I/CCA, CCR-U/CCA, RAR/RAA ) and PCRF/P-CSCF-Rx ( AAR/AAA, STR/STA, ASR/ASA )

·   Performance testing (10m Session@14k tps ) for Rel 9 involving PGW, HSS, P-CSCF

·   Installation of OpenStack on UCS M4 blades and Deployment of QPS Rel 9

·   Tracing on the PGW(monitor protocol, monitor subscriber imsi) PCRF(taileng, tailcons) followed by tcpdump/wireshark analysis to identify fault and troubleshoot customer issues

·   Attach/Detach, Hand Over( 4G/3G/2G ), Call model scripts generation using dsTest state machine

Environment: Cisco PCRF, PGW-ASR 5500, VMware vSphere Hypervisor ESXi 5.x, CentOS 6, OpenStack(Juno/Kilo), KVM, Mongo db, Diameter ( Gx, Rx ), CDETS, Lattice, Wire shark, cdets, dsTest

 

Client: Sprint, Overland Park, KS      

Project: IOT for Aeris Machine-to-Machine (m2m) Network

·   Inter operability Testing Involving Franklin UE(USB Dongle), Samsung eNodeB, MME, SGW, Cisco PGW, Ericsson HSS, Openet PCRF

·   S6a Interface/diameter message testing, Subscriber Authentication, PGW Selection/traffic routing based on APN

·   Attach Latency ( XCAL ), Idle to Active Latency( XCAL ), Network Latency ( Ping ), Throughput ( Ul/DL iperf and XCAL ) testing

·   Extensive tracing/packet capture on s6a/s11/s5 interface using tcpdump and message/parameter analysis using wireshark and proprietary tools

Environment: Samsung eNodeB, MME, SGW, Ericsson HSS, Cisco PGW, Openet PCRF,  XCAL, Franklin UE, Qualcomm QXDM, QPST, Wire shark

 

Project: Enhanced Circuit Switched Fallback (eCSFB)

·   Inter vendor Hard Handoff testing (Samsung WSS, Ericsson MSC, ALU MSC)

·   Testing wireless priority service(wps), 911, calea call, Intra/Inter WSS calls, LNP, CRBT, VM, CFU, CFB, CFNA, MO to MT, pstn to MT, Billing/CDR verification

·   Configuration of S102 Interface between MME and WSS, tracing of GCSNA messages

·   Trace log collection and validation on eNodeB, MME, WSS, MGW, BSC, BTS for each call flow

Environment: Samsung eNodeB, MME, WSS, MGW, BSC, BTS, Ericsson HLR, MSC, Alcatel STP, MSC, Qualcomm QxDM, Qpst

      

Project: CDMA and iDEN SMSC Split Operation

·   System/IOT/FIT Testing of the CDMA and iDEN Split operation

·   End to End SMS call flow testing of Onnet and Offnet Subscribers

·   Creation/Provisioning/Binding/Testing of LA’s on the iDEN SMSCs

·   Involved in the creation of MOP and testing them on the LAB systems before executing them on the Live Production System for Patch/Feature upgrade

·   Analyze the critical incident generated by the Production SMSC Server and reproduce them on the Lab systems in order to provide the Root Cause Analysis

Environment: Acision SMSC V5.2 Server, OpenVMS v8.3, SIGTRAN SS7 over IP (M3UA, SUA), MAP, IS-637-A, TCP/IP, SMPP, LDAP, SLP, RBDL, Perl/Bash Script, Henkel hTK Legend, Wireshark 1.4.9

 

Project: Mobile Virtual Network Operator (MVNO) – Cricket, ONS, COX, Voyager

·   Creation of Test cases and Execution on Sprint STIC Lab for MVNO-Cricket,COX,Voyager

·   Created RBDL, SSD Rules, Provision of short codes for respective MVNO

·   Billing and Validation of CDR involving DMD, Diameter server – CCR and CCA

·   Extensive Tracing on SMSC 5.4 involving SIW, DIW, SMPP Entities for call flow Validation

·   Creation of STIC Exit Test Report and MVNO MOP for deployment

·   Execution of MOP for MVNO followed by FIT/SOAK Testing and system resource monitoring

Environment: Acision SMSC V5.4 Server, OpenVMS v8.4, SIGTRAN SS7 over IP (M3UA, SUA), MAP, IS41C, TCP/IP, SMPP, DIAMETER, LDAP, SLP, RBDL, Perl/Bash Script, Wireshark 1.4.9

 

Client: AT&T, Redmond, WA

Project: Circuit Switched Fallback – MTRR

·   Acceptance/System Testing of the MTRR feature on Ericsson AXE 810 MSC R12.1

·   End to End call flow testing including 4G to 3G fallback testing using the closed RF Test site involving Multivendor eNodeB, MME, MSC, STP, HLR, HSS

·   IOT involving Ericsson MSC, NSN MSC, ALU Call server, Nortel ATCA MSC, Ericsson eNodeB, Cisco MME, HP HLR/HSS

·   Troubleshooting/Call flow tracing on 2G/3G using Access7, LTE using JDSU Signaling Analyzer

Environment: Ericsson AXE810 MSC, NSN MSC DX200, Nortel MSC, ALU Call Server, HP Opencall HLR/HSS, Ericsson eNodeB, CISCO MME, Agilent Access7, JDSU SART 7.0

 

Client: Ericsson, Boulder, CO       

Project: HLR-BS ( Blade Server )

·   Function/Delta/Acceptance Testing of HLR-BS Feature

·   Test plan Creation/Execution include Load/Define/Block/De-block/Un-define XM/Remote LDAP Server IP Binding/IP Failover/Congestion/LDAP Query

·   Created the automated WinFIOL scripts for Testing IO SSI Cluster Handling, Function Change, Program Correction, Size Alteration, Blade Reload/Restart

·   Installation/Upgrade/Troubleshooting of AXE09B LSV11.0 – LSV25 Release (CPHW, PES,PLEX) on HLR-BC Node ( 8 HLR in Total ) and the Legacy APZ 212 33, 212 40, APX212 50 systems

·   Trouble report creation/reproduction/verification of bugs using Rational Clearquest and MHWeb

Environment: Ericsson AXE09B HLR-BS ( APZ 21260, APG 43), TGEN, SIGTRAN, WinFIOL 7.2,  open LDAP, Windows 2003 Server, SuSE Linux 11, JAVA/J2EE, WSDL, SOAP, XML, Perl, TM4E

 

Project: MSC-BC 6 Million Subscribers

·   Function/Characteristics/Acceptance Testing of 6M subscribers on Blade Cluster

·   Test plan Creation/Execution include Charging(CDR)/STS/TMM/Disk Mirroring/MML/Security/Node Restart

·   Identified bottlenecks for 8M subscribers using GEP2

·   Test plan creation/ modification/log/tracking using TM4E

·   Installation/Upgrade/troubleshooting of AXE09A LSV8.0 - LSV8.4.1 Release (CPHW, PES,PLEX) on MSC-BC Node

·   Trouble report creation/reproduction/verification of bugs using Rational Clearquest

Environment: Ericsson AXE 09A MSC-BC ( APZ 21260, APG 43), TGEN, SIP, MTAP, STSTEST, SIGTRAN, WinFIOL 7.2, Active Perl, WinPE, Windows 2003 Server, Billing GWY, TM4E

 

Project: GSM TRA R6/R7 - CSPB 2.0

·   Involved in the Preparation/Review of the Requirements/Test Document

·   Development of Perl modules related to AMRWB codec

·   Design/Development of RUM Modules to test HR,FR,EFR Codec

·   Set up of RUM Environment and carrying out BUT, BJT ( Unit/Join Test )

·   Fixing/Testing of TR ( Trouble Reports )

Client: Alcatel Lucent, Plano, TX

Project: HLR Database Migration

·   Carried out Requirement Analysis, System Test plan, Test execution/Report

·   48hr SOAK/Performance testing using the test equipment CATAPULT

·   Post process the performance test data such as IS-41C MAP Message loss, TMM Peg counts, Subscriber provisioning, Subscriber Audit between mate HLR, Resource usage

·   Test automation using perl scripts

·   Detection of memory leaks

·   Defect ( BUG ) Analysis/fix/verification

Environment: C/C++, Unix, Perl scripting, TCL/TK, SS7, MAP, TCP/IP, RBTree, GNU debugger, CATAPULT along with the HLR Test bed ( Alcatel-Lucent 1430 HLR/AUC )

 

Project: Resource Analyzer

·   Involved in Requirement analysis, Design, Coding and testing of the feature

·   Designed/Implemented the processIPR, issueIPR method in C++

·   Designed/Implemented the monitorResource routine

·   Validation of the resource threshold configuration file

·   Analysis of IPR and Alarms

·   Involved in Defect Analysis/Fixing

Environment: C/C++, Solaris 2.5.8, Perl scripting, SS7, MAP, RBTree, GNU debugger, HLR Test bed ( Alcatel 8791 )