Sanjeev_anand_S_CORE_test_Engineer
- 1. Sanjeev Anand S Mobile : +91 9686711788 , +4915166494655 Email : sanjeev.sanjshan@gmail.com Address : C/O Vijay Ramasamy, Werner-Friedmann Bogen 20 , Munich- 80993, Germany CAREER OBJECTIVE: To secure a challenging position where I can effectively utilise my skills as a software professional and offers professional growth while being resourceful, innovate and flexible; interested in application development/design. SOFTWARE SKILLS: Domain Knowledge GSM (2G), GPRS (2.5G), UMTS (3G), LTE Inter-working(4G), Lawful Interception Tools and Utilities Challenger(FTP tool),HIT(testing tool),TTCN3 Framework(Testing environment),EMIL (Monitoring and analysing logs), Wireshark Analyser, DMXSEE GUI(image building tool),Eclipse(coding),Robot Framework(Automation), WIRESHARK (Message analyser) , UTIMACO Operating System Windows, Linux Technical Skills TESTING- TTCN3 , ROBOT Framework , SYBORG Interception center PROFESSIONAL SUMMARY: • 4 years and 11 months of IT Experience, testing Experience in TTCN3 and Telecom Domain • Worked as a Senior Test Engineer at Wipro Technologies, Hyderabad from 15th November, 2010 to 22-Jan, 2015 (Worked from Bangalore for same project in Hyderabad) • Working as a Senior Test Engineer at Wipro Technologies at a client’s location(One of the leading telecom operator , Munich) from Jan 23,2015 till date • Involved in Manual and Automation testing - Packet core and Evolved Packet core Testing - Verification and validation of SGSN functionalities (3GPP Rel 8 Features). .. • Good Knowledge on SGSN and its interactions with all interfaces(Gb, Iu,Gn/Gp, Gr, S3, S4, S16, S6d) • Good Knowledge on RANAP, TCAP, GTPV1, GTPV2, BSSGP etc. protocols • Working Experience with RNC, HLR, SGSN, BSC, GGSN, SGW, PGW, MME, HSS components. • Working experience in Automation testing, Functional testing, Sanity testing, Regression testing and AT & T testing • Good understanding of 3GPP Specifications. • Working experience in Agile process • Working experience in TTCN3, Automating Robot Framework • Having excellent debugging and troubleshooting skills. • Good ability in prioritizing, organizing and handling multiple tasks. • Trained few new team members in Team on TTCN3 automation • Involved in Lawful interception – Regression, acceptance and functional testing WORK HISTORY: I am working with Wipro Technologies, in the Wireless Technologies area under Telecom Domain. I am a part of feature team and my role is to test the feature/functionality added to the SGSN, also do some coding and unit testing. I have fair understanding of SGSN (real network element) and the interfaces through which it communicates with other network elements.
- 2. PROFESSIONAL EXPERIENCE: PROJECT NSN-SGSN CLIENT Nokia Siemens Networks, Finland DESCRIPTION SGSN (serving GPRS support node) is a real network element in core network through which packet switched calls takes place from mobile station (MS). Whenever a MS wants to send data to external world Packet Data Networks (ex. Uploading data, etc.) or it receives data from outside network; it has to go via SGSN to start the packet data session. This project includes new feature development and adding new functionality to the existing features under SGSN. SGSN is the real network element whereas HLR, MS, SGW, PGW, MME, GGSN are emulated components. For any exchange of message between MS and SGSN, SGSN has to communicate with at least one of the above mentioned components. These emulators come into existence when we run TTCN3 test cases and these components get stopped automatically after execution of case. The code for new features as well as existing features is developed in TNSDL(Nokia Proprietary language similar to C). The feature team to which I belong has implemented successfully following features: 1. PSHO - To test the functionality of S4-SGSN when subscriber is moving to S4-SGSN from MME during Packet switched Handover. 2. EPS Bearer Mapping – To test the functionality of the SGSN when Bearers are activated. It has to discard the dedicated bearers coming to S4-SGSN configured as Gn/Gp or S4-SGSN connected to PGW using Gn from MME during Packet switched Handover or Routing Area Update scenarios When the Parameter is set to 1. 3. IMS APN - To test the functionality of S4-SGSN when subscriber is moving to S4-SGSN from MME during Handover or RAU , where DNS Query for SGW fails. Upon this situation, S4-SGSN should route PDPs over GN Interface towards PGW. 4. Interception Timestamp - To test the functionality of S4-SGSN towards LIG (Lawful Interception Browser and Lawful Interception Controller) to include the Timestamp value in micro seconds depending on the parameter configured. 5. Dual Stack S4 - If requested PDP type is allowed by subscription and if the requested PDP type is IPv4v6, the SGSN sets the PDP type as requested, if the SGW supports PDP type IPv4v6 (SGSN will be have an 'on/off' switch for the feature, i.e. either all nodes support DS, or none). Otherwise, the SGSN shall set the PDP type to IPv4 or IPv6 where the selection between IPv4 and IPv6 is based on the result of the check. 6. Dual Stack Gn - If the requested PDP type is allowed by subscription and if the requested PDP type is IPv4v6, the SGSN sets the PDP type as requested, if the GGSN supports PDP type IPv4v6 (SGSN will be have an 'on/off' switch for the feature, i.e. either all nodes support DS, or none). Otherwise, the SGSN shall set the PDP type to IPv4 or IPv6 where the selection between IPv4 and IPv6 is based on the result of the check. 7. MM States - To test the functionality of SGSN when the ready timer expires and there are active PDP contexts for that subscriber, SGSN sends Release Access Bearers Request message to the S-GW to release resources allocated for it.
- 3. ROLE As part of feature team, I was mainly involved in functional testing as well as development for some functionality when required. For functional testing, I had to login to HIT to get connected to the SGSN which is the SUT (System under test). I have worked on GPRS emulators as well as TTCN3 framework and have fair understanding of how it works with SGSN. Also I have done automation testing as part of feature development with ROBOT Framework. After functional testing the cases have to be uploaded in Quality Center. While testing, I was responsible for raising bug in Pronto tool, had to keep track of the pronto and closing the pronto after retesting it. I did coding for a new feature as well as unit testing. After completion of feature, I demo the developed feature’s functionality to the customer in Sprint Review meeting via WebEx session. I have been part of three major releases for SGSN - SG8 CD2 , SG8 CD3 and SG8 CD3.1. I was the only tester in our project to be involved in for AT & T testing for SG8 CD3 and CD3.1, after it was delivered to them for upgrading. Since agile methodology is followed, I am truly agile as I was involved in testing and development activities. TOOLS GPRS emulators, TTCN3 Framework, Vi editor, Wire shark Analyser, Emil, Winscp, Winsofia, HIT, ROBOT Framework, Challenger, Eclipse, Quality Centre PROJECT O2-SONDES NETWORKS CLIENT Telefonica , Germany DESCRIPTION Lawful interception (LI) is obtaining communications network data pursuant to lawful authority for the purpose of analysis or evidence. Such data generally consist of signalling ornetwork management information or, in fewer instances, the content of the communications. If the data are not obtained in real-time, the activity is referred to as access to retained data (RD). ROLE As a part of LI testing team, I am responsible for test configuration, Test case designing, Test case execution and evaluation of test results based on IRIs and CCs from various network elements like MSS, SGSN, MME, S-GW/P-GW, SBC, VMS and LSDP. TOOLS UTIMACO, WIRESHAK Analyser, SYBORG Interception center, ADMINSY GUI, HAGUI. HIGHLIGHTS: • Worked on the testing of SGSN, S4-SGSN, LI(Lawful Interception) • Good Knowledge on SGSN and its interactions with all interfaceS(Gb, Iu, Gn, Gr,S3,S16, S4). • Good Knowledge on Testing Process • Quick to adapt to new Technologies. CERTIFICATIONS AND TRAININGS COMPLETED IN WIPRO: • Completed trainings for UNIX,C and C++ in early stage of my career ACHIEVEMENTS: • Received Feather in my cap award for excellent contribution in NSN Project. • Received “Best Rookie of the year – Make your Own “ award
- 4. • Awarded with Maverick award(GMT EXCELLENCE AWARDS : Q1-2012-13 ) • Received “Shining star of the month” award – April 2013 ACADEMIC DETAILS: Exam Institution Board/ University Year of Passing percentage 10th Sri Vijay Vidhyalaya Hr. Sec. Matric School, Dharmapuri Matric 2004 87.36 12th Sri Vijay Vidhyalaya Hr. Sec. Matric School, Dharmapuri State Board 2006 92.58 B.E. (CSE) Hindustan College of Engineering , Padur , Chennai Anna University 2010 78.55 PERSONALITY TRAITS: Strengths: creativity, leadership and team work. Hobbies: Painting, Dancing. Examples: • Won second place in group dance competition in Rotafest *2002, 2001-2002 • Won the school level inter-house cricket tournament, 2001-2002 • Won the school level inter-house foot ball tournament, 2002-2003 • Won second place in the inter-house cricket tournament , 2003-2004 • Won the school level inter-house volley ball tournament, 2003-2004 • Winning team captain for volley ball in 2004-05 • Attended the NSS camp at Malaiyur village in Dharmapuri district during 2004-05 • Participated actively in various drawing competitions • One of the committee members in organizing the hostel day function , Crossroads 2009 • Team member of NSN-SGSN Cricket team under GMT-Telecom Domain , 2011-12 PERSONAL DETAILS: Name Sanjeev Anand S Father’s Name Mr.S. Shanmugam Date of Birth 19th Apr 1989 Nationality Indian Marital Status Single E-mail Address Sanjeev.sanjshan@gmail.com Languages known English, Tamil , Hindi(Read) Permanent Address 167-A, Sangeetha illam, 6th cross, Gandhi nagar , SV Road , Dharmapuri- 636702 Contact No. +4915166494655
- 5. DECLARATION: I here by declare that all the information furnished above are true and correct to the best of my knowledge and belief.. Sanjeev Anand S