vijaykumar CV (1)

Mail Me: vijay.sun4u@gmail.com
V.Vijay Kumar Call Me: +91 9902227319
OBJECTIVE:
6.4+ years of professional work experience in GSM network and having good
maintenance and support knowledge, end to end products network level for smsc, mmsc,
sdp, wapgw, rbt, srbt and CBC. And all the products maintained in clustering and
redundancy used to scale the load capacity and availability of a system.
 Good team facilitator, Ability to master new concepts, ideas and practices.
 High degree of attention and commitment towards work.
 Ability to quickly analyze problem and to plan to resolve and execute them
according to priorities.
 Ability to manage the end users during crisis.
 Having a strong desire to work as System Administrator in the Heterogeneous
Environment.
Core technical skills:
 Good knowledge of VAS Infrastructure Products SMSC, MMSC, SDP, WAP
GW,RBT and CBC.
 Very comfortable with Network Operating systems such as Linux (RHEL 4.0, 5.0
& Cent OS), Sun Solaris , Suse linux and Windows.
 Good knowledge of MySQL, SQL data base.
 Good knowledge of GSM, ISUP, SS7, SUA, M3UA protocols, SMSC, MMSC,
CBC, WAP GW,OTA,WSMS,Roamware and SDP.
 Good work experience in Implementation, testing and troubleshooting of various
VAS products Such as SMSC, MMSC,WAPGW and SDP.
 Idea about switching system MSC, HLR, IN etc...
Skills:
 Operating Systems Red Hat Linux, Sun Solaris, suse linux,centos,Windows
 Protocols TCP/IP UDP/IP, SS7, Sigtran, Diameter,
MAP/TCAP, SMPP V3.4.
 Technologies GSM Technology
 Database Basic knowledge of MYSQL, Sybase
 Virtualization Xen,vmware
 OS (Linux) Internals File Management System, Process Management System.
 Servers IBM x3850-[88633SA], HP ProLiant DL385
G1,G2,G5, G6 and G7 servers HP and IBM Blade servers
Tools :
 BMC Remedy,Jira,Citrix, Zabbix,Acut,wolken ,SAP CRM

PROFESSIONAL EXPERIENCE (Unix/Solaris)
Having 76 months of Experience in Production Environment as a Support
and Implementation Engineer.
Current Employer:
Designation : L3 support Engineer
Organization : IDC technologies Bangalore, client SAP mobiles ltd
through Wipro InfoTech pvt ltd .
Period : may-2016 to till date
Designation : Senior operational Engineer
Organization : Ericsson Global India ltd. Kolkata.
Period : 09-Feb-2015 to April-2016
Designation : Senior operational Engineer
Organization : Onmobile Global ltd. Bangalore.
Period : 28-Oct-2013 to 29-Jan-2015
Designation : VAS Engineer
Organization : Zte Telecom India Pvt Ltd, Chennai.
Period : 21-Sep-2012 to 23-Oct-2013.
Designation : Implementation Engineer
Organization : TeleDNA communications Ltd, Bangalore.
Period : May 2010 to 19-Sep-2012.
Educational qualifications:
 B’tech in Information Technology from Sree Vidyanikethan Engineering College
Tirupati. Passed in 2009.
 Diploma from S.V.Govt.Polytechnic College, Tirupati passed in 2005.
Professional certification:
 Sun certified System Administrator for Solaris 10 (SCSA1)

Job Profile:
 Tickets acknowledgment based on the agreements.
 L2 level supports providing for all Telecom products.
 Clearing the tickets based on the SLA and providing emergency support.
 Installing suse Linux, RHEL4, RHEL5 32/64 bit and Solaris machines
 Product implementation SMSC, MMSC, WAPGW, SDP,
RBT,Msearch,Prisim,football,context,AEGIESGW and A2P SMSC configuring
and installing on sites.
 Product up-gradation every 15 days and quarterly half yearly and yearly.
 Health checking the servers for each and every product.
 Collecting Backups and upgrading the products on live servers.
 Collecting the daily reports for analysis and submitted to customers for generate
more revenue for the customers.
 Configuring the cronjobs in Linux servers.
 Worked on SS7 network stack in smsc.
 Implementing the products on sites coordinated with customer finished the AT &
VT for projects. Up to that providing the O&M support.
 Supporting to the customer Environment.
 In critical Issues generating the tickets using CRM tool and Escalating to R&D.
 Issue analysis using wire shark for trouble shooting the application and network
level.
Project Profile:
Project Name : SAP mobile services
Client : SAP mobiles pvt ltd
Operating Systems : Linux, Red Hat Linux, Solaris
Duration : 2 month
Team Size : 4
Protocols : TCP/IP, SMTP, RADIUS, HTTP, SMPP, UDP/IP and WSP
Description:
 Supporting SAP products L3 and L2 level.
 Resolving issue and major issues in SAP hub and using ticketing tool is CRM .
 Involving emergency tickets collecting tcpdumps analyzing using Wireshark.
 Preparing the Mop and tested and uploaded the binary to sites.
 Collected the backup from database and jar and war.
 Configuring the scripts based on MOP and uploaded the new binaries and
database tables.

Project Name : RBT, Prism, msearch, Ums, football, context,
Client : Africa - Airtel
Operating Systems: cent OS, Linux, Red Hat Linux
Duration : 1.1 month
Team Size : 9
Description:
 Involving the Up-gradation the site
 Preparing the Mop and tested and uploaded the binary to sites.
 Collected the backup from database and jar and war.
 Configuring the scripts based on MOP and uploaded the new binaries and
database tables.
 If require contacted from support from support for live up-gradation.
 After completion tested the service and maintain tracker as follows in tickets.
 Newly we have implanted Xen virtualization migrations.
Project Name : WAPGW, SMSC-DR and core
Client : BSNL Chennai
Operating Systems: Suse linux, Red Hat Linux and Sun Solaris
Duration : 13 months
Team Size : 2
Description:
 Supporting to SMSC,SMSC-Dr,SDP and WapGW
 Installation and commissioning WapGW and smsc servers and giving support to
rnc, ggsn, sgsn.
 Updating the daily status to project presales sales team, project managers and
project coordinators.
 Initiating the new client requirements to our projects developers teams and
supporting to the client end.
Project Name : Service Delivery Platform (SDP)
Client : BSNL Chennai
Operating Systems: Sun Solaris and Red Hat Linux
Duration : 8 months
Team Size : 4
Protocols : HTTP, TCP/IP, SMTP, SMPP, UDP/IP, RADIUS, WSP

Description:
 SDP product Application framework, Portl framework, API blokes, Thinclient,
parlay integration services for mms, sms, streaming and wap theses services
completed the Acceptance test.
 Monitoring the SDP product for issues analysis for service availability, Mis
reports, cdrs, logs and alarms.
 Configured the scripts in cronjobs for SDP services and high availability.
 Doing the patch upgrades for new futures, collecting backups and upgrading the
products.
 For issues direct client interactions for resolving the products issues.
 Collecting the dumps analyzing the issues and coordinating with development
team and network team for further actions.
Project Name : multimedia messaging center (MMSC)
Client : Aircel
Duration : 6 months
Team Size : 4
Role : Implementation & support Engineer
Description:
 End to End patch up gradations mmsc, ppg, Ipwin and Wapgw nodes.
 Maintaining the cronjobs configuring new scripts for auto generated reports
monitoring the servers.
 Mis reports analysis and monitoring the alarm in the mib severs.
 Any issues Collecting log backups and databases backup analyzing issues and
resolving the issues.
 Collecting tcp dumps analyzing the traces.
 Wireless mobile devices. This is developed based on the 3GPP standards. MMSC
parses the HTTP based Multimedia
 Requests and processes the message and delivers it to the appropriate destination.
MMSC uses different Communication handlers and interface agents to
communicate the requests with different user agents.
Responsibilities:
 Performed feature enhancements.
 Prepared test cases and executed.
 Detection of Bugs and functional failures.
 Prepare the report for test case failures for all modules.
 Performed Performance Testing
Project Name : Short Message Service Centre (SMSC)

Client : Aircel
Duration : 8 months
Team Size : 4
Role : Implementation & support Engineer
Description:
 The point-to-point SMS provides a mechanism for transmitting short message to
and from wireless handsets. The
 Service makes use of a short message service center (SMSC) which acts as a store
and forward system for short
 Messages. The wireless network provides for the transport of the short message
between the SMSC and wireless Handsets.
 The salient features of TeleDNA SMSC are Works on SS7 and SIGTRAN
network.
 Works both for CDMA and GSM network.
 Supports different external interfaces like portal, ESME, E-mail and mobile.
 Messages destined to distribution list and deferred delivery of short message.
Supports error based retry mechanism.
 Provides delivery confirmation to the originator of the short message, generation
of Alarms, supports CUG and binary data support.
 Diameter protocol customized Light Bridge IN interface, UCIP IN interface and
Huwaei IN interfaces are used for charging the prepaid subscribers. Also supports
reimbursement in the case of failure delivery.
 Provisioning of mobile subscribers via GUI, Bulk provisioning and form less
HTTP provisioning.
 Mobile subscribers can maintain their profile for preferred destination, barring
incoming/outgoing of SMS, enable or disable delivery acknowledgement.
 Generates CDR for all the messages and provides statistics.
 Support Advertisement service.
Responsibility:
 Implementation and testing.
 Creation of High and Low level design document.
 Installation and updating.
 Component Test plan creation.
 Health checkups.
 Upgrading the applications both UNIX and Solaris.
Thanks and Regards
Vijay Kumar

vijaykumar CV (1)

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