SathishKumar Durairaj
Contact No: +1 - 408-***-****
Baton Rouge, LA - 70816 E-
mail: ****************@*****.***
USA
Career Summary
o Around Nine years of experience in communication industry in GSM,
GPRS, EDGE and UMTS.
o Experience in operation and maintenance of GERAN network (BSC/BTS) and
good working knowledge of UTRAN network (RNC/NodeB).
o Experience in operation and maintenance of Operation support system
(OSS).
o Proficiency in Ericsson's AMOS (Mo Shell version P6.1 and P7.0)
Scripting tool.
o Experience in third carrier parameter changes and audits.
o Experience in System Acceptance Testing (SAT) of BSS and OSS.
o Experience with Ericsson, Nokia equipments and good knowledge of
Alcatel equipment.
o Experience in RF Performance Management through Ericsson and Nokia
OSS.
o Experience in RF optimization and planning.
o Good working knowledge of GSM, WCDMA and CCS7 protocols.
o Experience in Engineering Design Plan for Alcatel's Media Gateway
(MGW) and Call Server (MSS).
o Experience in Engineering Design Plan for Ericsson BSS and DACS
(Tellabs and Alcatel) port mapping for New Media Gateways (MGW).
o Experience in "TRIDENT", Decision framework tool used by RF
engineering.
o Good analytical and communication skills and a team player.
TECHNICAL SKILLS
o Technologies: GSM, GPRS, EDGE, WCDMA, CCS7 and good knowledge of
NMS, SIP and RTP.
o Languages: C, C++, ASP, Awk scripting
o Hardware: Sun Solaris Enterprise Servers E4500, E5500, E450 and S9000.
o OS: MS Windows (95/98/NT/2k/XP), MS DOS, Unix (Solaris, HPOV)
o Protocol Analyzers and Tools: Tektronix K1205, Ghepardo, Actix
o Drive Test Tools: Ericsson TEMS, Anite
o Propagation Tools: Map Info, Atoll and Optimi
PROFESSIONAL EXPERIENCE
02 '10 - 12'10 AT&T Mobility Baton Rouge, LA
RF Engineer
o Experience in performance management for UMTS and GSM sites through
OSS.
o Experience in optimization of network.
o Responsible for NodeB balancing through Ericsson's RNC.
o Configuration and re-configuration of UTRAN activities through Common
Explorer in Ericsson's OSS.
o Experience in Operation and Maintenance of UTRAN through AMOS(Mo
Shell) version P6.1 and P7.0 scripting tool.
o Responsible for third carrier RF parameter changes and audits.
o Experience in Layer Management parameter changes for Ericsson UTRAN
sites.
o Experience in performance management and node balancing of Nokia GSM
sites.
o Supported configuration and re-configuration activities related to
Nokia GSM sites through Nokia OSS.
o Responsible for analysis of T1errors and creating trouble tickets
related to T1 errors based on the severity.
o Co-ordination with vendors for System acceptance testing(SAT)
conducted for SGSN upgrade.
o Experience in handling UMTS and GSM antenna tilts using RETs for
Andrews and Katherein equipments.
o Experience in performance tools such as, Business Objects, COPS,
SENSR, Vision (NDR),Net Track, BEAST, Arieso Geo tool and Optimi.
o Experience in operation and maintenance of NodeBs using EMAS.
o Supporting the ongoing RNC rehomes as well as drive testing and
analysis of the rehomed sites using TEMS activated User Equipment(UE).
o Responsible for the creation of neighbor list for both GSM and UTRAN
sites via Mapinfo, COPS and OptPCS.
o Responsible for the Implementation process of New Site build data
using "TRIDENT" in order to achieve standardization and to improve
efficiency and data integrity.
07 '09 - 12'09 AT&T Mobility Minneapolis, MN
Senior RF Engineer
o Experience in sectorization of GSM sites through OSS.
o Responsible for preparation of neighbor information through RF
propagation tools, such as Map Info, Atoll and Optimi.
o Recommendations in parameter changes and feature activations based on
TEMS drive test data.
o Supporting BSS activities for sectorization through OSS .
o Responsible for preparation of datafills for sectorization, new site
builds and sectorization with dualband sites.
o Responsible for preparation, observation and analysis of KPIs for
sectorized sites.
o Experience in customization and generation of statistical data through
Business Objects.
o Co-ordination with RAN team for the migration of UMTS.
o Experience in AT&T proprietary performance tools such as Net tool, RA
and BEAST.
o Responsible for providing T1 informations through Granite Engineering
Database.
09 '08 - 12'08 T-Mobile Inland Empire, CA
RNC Engineer
o Operation and maintenance of RNC through OSS.
o Supported UMTS launch activities.
o Responsible for providing alarm statistical reports, Tri-market's UMTS
and 2G KPI reports, RNC performance report.
o Experience in collection and analysis of TEMS drive test data for IRAT
issues.
o Experience in WRAN explorer for RNC activities.
o RNC activities using MO-Shell (AMOS version P6.1) through Ericsson's
OSS.
o Co-ordination with RF engineers for troubleshooting issues in RNC and
NodeB.
o Responsible for UETR recordings through Ericsson OSS.
o Involved in GSM frequency re-tuning.
05 '08 - 08 '08 AT&T Mobility Redmond, WA
Senior Engineer - OSS (Architecture&Planning)
o Responsible for System Acceptance Testing of Nokia OSS and
applications.
o Testing of Configuration, performance and fault management
functionality including various applications (Traffica Z4-Real
time/ReportBuilder/Network Doctor/MML/CM Editor/CM Analyzer/Element
management).
o Testing of BSS software package loading through OSS.
o Experience in testing NetAct Administration and user management
procedures and tools.
o Creation of trouble reports and follow up with NSN.
o Involved in the system verification after new software loads/fixes.
o Responsible for System Acceptance testing of NetAct's backup and
remote system backups.
o Responsible for creation, maintenance of FOA (first office
Application) documents as and when required.
10 '07 - 03 '08 Ericsson Plano, TX
Engineer - BSS/NSS
o Experience with statistical analysis of Network performance data.
o Initiating call traces and Co-ordination with field technicians to
collect TEMS measurements for different traffic types (voice/ data),
for KPI measurements.
o Post processing drive test data using Actix for Analysis &
Optimization and analyzing ethereal traces.
o Preparing report on availability and usage of different statistical
Object types/Counters in the network.
o Preparing report for maintaining and improving BSC Key Performance
Indicators (KPI).
o Experience in RNC Re-balancing and NodeB rehoming and addition.
o Involved in integration related projects in Alcatel-Lucent 7670 MSN
o Experience in configuration changes in Alcatel-Lucent 7670 MSN and
AIM reporting
o Preparation of EDP (Engineering design package) related documents.
o Gained good knowledge of Node-B/RNC re-homing, new RNC and NodeB
installation, and optimization.
o Collecting NSS, BSS, RNC/Node B and DACS related data for the
preparation of EDPs.
o Responsible to provide the Facilities request form for NSS and BSS.
o Latest updates of EDPs based on the latest Market Design Documents
(MDD).
o Preparation of Engineering and Re-design related data for ongoing
project.
o Co-ordination with project managers and engineers for the site exit
process
o Follow-up on work orders related to Site exit, Trunk Group removal,
Trunk Group reduction and rehomes.
o Reviews and handoffs related to Site Exit for Ericsson MSC
Decommissioning and commissioning.
o Generation of Statistical reports for MSC Decommissioning projects,
and analyzing the reports.
o Co-ordination with circuit designers for DACS port assignments and re-
design related data
o Responsible to provide upper management with status reports.
03 '07 - 08 '07 AT&T Bridgeton, MO
Engineer - Operations and Network Support
o Providing Critical Network support services for High profile, Business
critical application (CTP-CTC, and CBUS) for internal and external
customers.
o Working closely with peers, development, system-test and application
trainers
o Administering ticketing systems and problem solving through remote
Operations support systems.
o Maintaining responsiveness to company's global customer base, manages
application availability, and partner in release initiatives.
o Maintenance of automation tools, scripts, system administration,
application administration, and network management tools (HPOV, BMC
Patrol Express).
o Involved in software upgrades (release management), patch management,
outage management, security management, and end-user interfacing.
o User provisioning and global support for AT&T's proprietary
applications.
o Acceptance test for various UNIX machines which supports OSS.
o Testing SQL Queries on Oracle RDBMS and validation of data.
o Raising trouble report for the problems identified, analyzing,
preparing detailed test reports and tracking the issues.
o Technical co-ordination and support for various teams.
02 '05 - 08 '05 T-Mobile Parsippany, NJ
Senior RF Engineer - BSS
o Preparation of Data fills for the EDGE implementation through OSS.
o Reconfiguration of ABIS path for EDGE.
o Activation and performance of EDGE reconfigured sites.
o Changing radio network parameters on RF Eng Inputs.
o Configuration, maintenance and administration of Ericsson's OSS/BSS
9.0 for GSM Network.
o Technical co-ordination with project managers and field technicians
regarding EDGE activation and performance of the EDGE activated sites.
o Involved in Flexible ABIS implementation for EDGE Activation.
07 '02 - 01 '05 Hutchison Essar South Limited Chennai,
India
Senior Engineer - OSS/BSS
o Responsible for Administration of Ericsson's operation and support
system (OSS).
o Responsible for Operation and maintenance of BSS.
o Involved in commissioning and performed acceptance testing for OSS.
o Worked in fault management, configuration management and Performance
management using OSS applications CNA, CHA, BSM, SDM, SMIA and PMR.
o Worked with SUN Solaris 8.1, Business Objects, VERITAS Volume
Management, Netbackup.
o Working Knowledge of SUN Enterprise servers E4500 and E5500.
o Definition, configuration and preparation of statistical reports
regarding the performance of the cellular network for KPI analysis.
o Traffic analysis and network performance analysis and changing radio
network parameters on RF Eng Inputs.
o Integration of new BTS sites and performing TRX expansion in existing
BTS sites.
o Involved in re-homing of BTS sites from one BSC to other and
performing testing for correctness of re-homing.
o Raising trouble reports for OSS and BSS related faults.
o Co-ordination with field technicians to resolve any network degrading
faults generated at BTS sites.
o Analysis of call drop, signal strength and quality using Ericsson
TEMS, for Coverage related Customer Concerns.
o AXE software update, RP SW and APG loading - Scripted packages using
OSS - OSS OPS and SMO script handling tools - Live nodes/Emergency
handling Process
o Optimizing the network to combat interference, fading and any
abnormalities in the Network.
10 '99 - 06 '02 Aircel Limited
Coimbatore, India
Engineer - OSS/BSS
o Involved in network integration, responsible for testing and operation
and maintenance of Ericsson's BSC and cellular base stations.
o Diagnosis and troubleshooting of faults generated in BSC locally and
in remote BSC/BTS sites through Operation and Support System (OSS).
o Experience with fault management, configuration management and
Performance management in OSS.
o Preparation of data fills for BTS site integration.
o Integration of new BTS sites and expansion of existing sites.
o Upgradation of BSC/BTS software, loading correction packages
(emergency and approved) for optimum performance of BSC and performed
regression testing after loading new software.
o Roaming definitions of different network operators through OSS, and
performing roaming tests.
o Analyzing of signaling messages for Location Updating, Call Setup
etc., using Tektronix K1205 protocol analyzer.
o Measurement and analysis of radio network parameters using TEMS.
o Traffic analysis and network performance analysis and preparing
statistical reports for KPI analysis.
o Changing radio network parameters based on RF Eng. inputs
o Raising trouble reports for BSS and BTS related faults.
o Co-ordination with field technicians to resolve any network degrading
faults generated at BTS sites.
o AXE software update, RP SW loading - Scripted packages using OSS - OSS
OPS and SMO script handling tools - Live nodes/Emergency handling
Process
06 '98 - 09 '99 Qsoft IM Pvt Ltd Chennai,
India
Web Designer
o Responsible for designing, implementation, validation and hosting of
websites.
o Involved in client and server side validations.
o Used Active Server Pages (ASP), and designing tools like Koy Precision
Tool (KPT) and Adobe photoshop 5.0.
EDUCATION
Bachelors in Engineering (Computer Science and Engineering);
Sathyabama College of Engineering, University Of Madras, Chennai,
India
TECHNICAL TRAININGS COMPLETED
o Basic Mobile Telephony from Ericsson
o Telecom Platform & AXE 10 Survey from Ericsson
o CME 20 - Cellular Communication Basics from Ericsson
o MSC operation and maintenance from Ericsson
o OSS Management - On Site Introduction from Ericsson
o Workshop OSS - Operation Handling
o DX200/IPA2800 Switching platform Essentials & Administration from
Nokia
o NSS - Operation and Maintenance from Nokia
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