Nimisha Bhatnagar

b.nimisha@gmail.com

Ph: 805-312-6060

 

·   Experienced in Telecom OSS/BSS areas such as Mediation, Subscriber-Policy Management, Charging & Billing on products like FusionWorks, Policy Management(PCRF Openet,Tekelec,Cisco),ANDSF and Kenan FX/Arbor Billing platform respectively

·   Code maintenance on Amdocs Clarify CRM

·   Performed database Billing Configurations and Provisioning for Services, Packages/Calling Plans, Components, Contracts, Products/RCs, NRCs, Unit Credits, Discounts, Usage on Kenan Billing system for Voice, Data and FIOS Verizon customers

·   Provisioned and tested PCRF features on VZW IMS network,

·   Participated in Verizon HD Bundles war-room and invoice reviews performed using User Interfaces such as AIMS (Arbor Invoice Management System), SSP (Ordering reviews), IRB (Invoice Ready Bill Reviewer) .

·   Provided 7x24 Production Support management of billing related issues for business critical applications.

·   Proficient in various SDLC practices and experienced in all stages of project life cycle including development, quality assurance, deployment, client reviews

·   Comprehensive problem solving abilities and effective communication skills

Microsoft Certified Product Specialist in VC++

 

§ Openet DSD, FusionWorks, Policy Management(PCRF)

§ Fundamentals of Telecom Billing Kenan Arbor/FX

§ AGILE Methodology

§ Advanced Diploma in Systems Management and Information Technology

 

Bachelors in Computer Applications (US Evaluated)

PCRF and Subscriber management products: Openet PCRF, Tekelec/Oracle PCRF, Cisco Policy suite

Mediation platform: Openet Fusionworks, DSD

Telecom Billing:  Kenan Billing suite

2G,3G,4G LTE 3GPP components: GGSN(ASR5K)/PGW/PCEF, PCRF, VoLTE/IMS, P-CSCF

WiFi: Cisco ISG

Application Network Protocols:  Diameter, Radius

Databases:  Mongo, HSS, HLR, Oracle PL/SQL, IBM Solid DB

Telecom network interfaces: Gx, Gy(OCS), Sy(OCS), Rx(IMS)

Tools:  Wireshark packet analysis, tcpdump

Programming: C, C++, VC++(SDK and MFC)

Configuration management:  CVS, SVN

Operating Systems:  Windows, Unix(HP, Sun Solaris)

Middleware:  Tuxedo

Scripting languages:  Unix shell scripts, XML

Query/Reporting Tools:  Toad, SQLPlus, SQL Developer

CRM:  Amdocs Clarify

 

Current Employer:  COMTEC CONSULTANTS INC

Computer Programmer Analyst – Aug01 2013 till date

 

Current Project for Cisco

 

Responsibilities

As a Solutions Engineer in Advanced Services group, responsible for –

-Designing Mobile and WiFi PCRF solutions integrated with various network elements like GGSN( Cisco ASR5K), Cisco ISG, OCS/CRM(RedKnee).

-Creating solution architecture docs like Use Case Repositories with Call Flows, HLD, LLD, Acceptance Test Plan covering Business Cases, Use Cases, Configuration for  PCRF/ANDSF/ASR5K/ISG, Log validations for clients like TSTT, Telmex, Entel Chile, Apple,VZW and Internal Practice.

-Installing and configuring Cisco Policy solution that supports ANDSF, Virtualization using VMware and Openstack Orchestration for cloud computing.

-Identifying system integration requirements and working with in-house professional services and outside system integrator partners to deliver integration solutions.

-Establishing and maintaining a strong and trusted relationship with customers and partners.

-Providing consultative product and solution expertise on Cisco PCRF.

-Provide technical support in both lab and live traffic environment during customer Acceptance Testing.

 

Role requires-

·         Working knowledge of PCRF and 3GPP standards

·         Understanding of EPC(Enhanced Packet Core) per 3GPP SAEGW standards

          and how PCRF interacts with 2G,3G,4G Mobile networks across various Diameter 

          interfaces (Gx, Gy, Sy, Rx(VoLTE/ IMS), Sp(SPR))

·         Knowledge of how PCRF interacts with WiFi networks using Radius protocol

·        Expertise in interactions between network elements including the OCS-Online Charging

          System, Call Flows

·         Knowledge of QoS capabilities per monetization, rules, PCRF capabilities

·         Understanding of handset to Gateway and PCRF call flows

·         LTE call flows and platform interactions:  IP layers 4-7 of the OSI model

 

Environment: Cisco Quantum Policy suite/PCRF, Mongo database, Unix Shell scripts, XML, Putty, Wireshark, ASR5K GGSN, Cisco ISG, RedKnee OCS

Knowledge and background in PCRF(Telecom Network Policy), Diameter, Radius, Telecom Billing systems, C, C++, Databases such as Oracle PL/SQL, Sybase

 

 

Project: Tekelec/Oracle Communications July10 2013 to June30 2014

As part of the Broadband Network Solutions(BNS) group, introduce new Tekelec/Oracle Policy Management (PCRF), Subscriber Data Management (SDM) solutions into customer lab facility and production networks and define, coordinate and execute all integration activities for Oracle Next-Generation products as assigned.

 

Responsibilities

•                            Position requires understanding of Diameter protocol in order to accurately evaluate products in customer environments and provide feedback to development when issues arise.
•                            Perform lab verification of all Engineering source/procedures provided in support of Installation/Configuration, Upgrade/Backout and Backup/Restore functionality/features for all BNS products.
•                            Develop and test MOPs for VZW 3G(UMTS),4G(IMS,LTE) networks.
•                            Provision Tekelec PCRF on VZW IMS network including -                                 preparation of Blade servers and Rack Mount servers(RMS) with PCRF Fresh Install and/or PCRF Upgrade ; define PCRF Policies, Rules, Network Elements, MPEs, MRAs on CMP GUI ; monitor network traffic activity.
•                            Support VoLTE IOT, End to End Testing for Engineering features, Regression Testing and Systems integration for VZW.
•                            Author original procedural documentation from Engineering source materials on an as needed basis for BNS products -

                    Execution plans like FOA(First Office Application plan), ATP(Acceptance Testing plan)

                    Network Impact Report(NIR)

                    Upgrade and Fresh Install procedures

                    MOPs or WIs(Work Instructions) for onsite deployments.

 

      Product and Technical Support for VZW LTE, PCRF network –

•                            Act as a 2nd level escalation point for field support of Installation/Configuration and Upgrade/Backout procedures for BNS products and ensure provisioning is successfully done.
•                            Assist customer with product validation within joint Oracle/customer lab facility. Work with the customer to understand requirements for the solution and be able to provide recommendations for defining/configuring various network elements.
•                            Provide results of testing to Oracle and customer. Testing involves integrating multiple devices and products into a complete solution and analyzing logs for any Provisioning failures.
•                            Resolution of customer issues for the Design Support & Professional Services group.

 

Environment: Tekelec/Oracle Policy Management PCRF, Subscriber Data Management (SDM), Oracle PL/SQL , Unix Shell scripts, XML

Telecom network interfaces: Gx, Rx, Sy Online Charging(OCS)

Core network architecture 4G LTE 3GPP components: PGW, PCEF, PCRF, IMS, P-CSCF

Application Network Protocols: Diameter, Radius

Databases:  HSS, HLR

Tools: Wireshark, Putty, FileZilla

 

 

Project- Openet Telecom Inc - Apr21 2010 to Aug30 2012

As part of Openet Sustainment team at AT&T, supported FusionWorks Mediation for call data captured from diverse network elements and processed by FW Collectors and Correlators. The solution was a C++/Java/Oracle based application including many business rules written in DSD language.

 

Responsibilities

·   Coded Business Rules Logic (DSD); performed system configuration & optimization; GUI configuration for Data, Voice and U-verse tracks of AT&T network; performed pre- and post- unit tests, prepared Release Notes for deployment, and participated in review and release calls.

·   Addressed Work Requests related to a variety of GPRS Data streams: GGSN, SGSN, LTE, Circle (Border customers), SMS, IMS etc.

·   Handled WorkRequests for U-Verse and Voice tracks in FusionWorks

·   Developed PL/SQL scripts(using Packages, Procedures, Functions, Triggers, Materialized Views, Dynamic SQL, Synonyms, Sequences, DB Links, Partitions); Unix Shell scripts, DSD scripts.

·   Worked with PBatch Collectors such as for Circle, MMS, IM; and QBatch collectors and OSC Collectors

·   Acted as primary contact for periodic On Calls

·   Performed problem diagnosis including debugging, problem resolution (remotely or onsite)

·   Liaised with Services Engineering and Product Engineering to identify fixes and workaround for Client issues

·   Provided regular updates to clients on the status of any open issues and managed Client expectations in line with SLAs

 

Environment: Openet FusionWorks and Policy Manager, DSD scripts(Openet Proprietary Dev platform like C/C++), Oracle PL/SQL, SQL Developer, Unix Shell scripts, XML, Putty, FileZilla

Configuration Management: SVN

 

 

 

 

Previous Employer: OPENET TELECOM  INC

Senior Software Engineer – Aug31 2012 to July31 2013

 

Multiple Areas/Accounts (Telus, US Cellular, AT&T, Openet Engineering)

As part Openet ACE(Alliance Channel Engineering) Express product, successfully delivered all phases of Subscriber Policy Charging and Control custom solutions using Openet PCRF/Policy Manager, Fusionworks framework and Solid DB or Oracle DB involving diverse and thorough understanding of the products involved.

 

Responsibilities

·   Position required ability to work globally with a diverse team across multiple timezones, as well as strength in working independently with little direction.

·   Showed proficiency in end to end project lifecycle within an Agile methodology environment.

·   Setup IOT,Functional, Non Functional and Performance QA environments; created test plans for 3G(GGSN) and 4G/LTE(PGW) traffic defining case by case scenarios and developing DSD (Openet proprietary coding platform), Unix, and SQL scripts.

·   Developed scripts for Functional and Performance/Load testing using Openet’s simulator frameworks- ATF(automated test framework), Diameter and Binary to simulate PCEF Credit Control requests from LTE,GGSN network to PCRF and verified PCRF responses to ensure proper behavior.

·   Developed test data for Functional and Performance/Load testing simulators(ATF, Diameter and Binary).

·   Documented business requirements in TestLink, defined test cases for policy scenarios on PGW and GGSN networks and generated QA plans with matrix traceability.

·   Opened issues related to code and tracked requirements in JIRA system.

·   Persistently worked through multiple iterations and changes across the testing environment as the project evolved and successfully deployed.

·   Participated in QA and Customer document reviews, handled Jira ticket resolution for open issues and created Operations Guide. 

·   Showed strength in quickly adapting to changes and learning in aggressive environments.

 

Environment: Openet FusionWorks and Policy Manager(PCRF), DSD scripts(Openet proprietary development platform like C), IBM Solid DB, Oracle PL/SQL, Unix Shell scripts, XML, JIRA, TestLink

Application Network Protocols: Diameter(Gx, Sy interfaces)

Tools: Wireshark, Putty, WinSCP

Configuration Management: SVN

 

Employer:  Compunnel Software Group Inc     

Systems Analyst – Nov24 2008 to Jan23 2009                                                                                                          

Project- Capgemini/FairPoint Communications

Responsibilities

·   Responsible for Data Mapping and Migration of Verizon's legacy Kenan FX/Arbor billing data to an integrated platform being set up for 3 North East states NH, VT, MN at Fairpoint Communications and support the acquisition of billing assets from Verizon

·   Major task involved picking up the billing system implementation and deliver with minimal inputs

·   Performed detailed analysis of client requirements and documentation of the Data Mapping requirements and the Arbor Solution proposed with the implementation plan

·   Configured the solution and participated in implementation which required coordination with other network elements to resolve provisioning and billing related issues

·   Executed Kenan FX data migration validation

·   Configured and provisioned Services, Packages/Plans, Components, Contracts, Products and Product Lines, NRCs, Credits, and Discounts to customer accounts

 

Environment: Kenan FX/Arbor Telecom Billing platform, Oracle PL/SQL, Unix Shell scripts, SQL Loader, C language

Configuration Management: SVN

 

Previous Employer: ISTS WorldWide Inc

Software Programmer Analyst – Oct15 2007 to Dec08 2008

 

Project- Verizon Telecom

NorEaster Billing project involved Data Migration from Arbor VOL, upgrade from Kenan Arbor to Kenan FX and Production Support of legacy Kenan Arbor billing data for FairPoint Communications that acquired Verizon assets in 3 north east states NH, VT, MN.

 

Responsibilities

·   Involved in Initial Planning and Analysis (IPA) phase where business and data mapping scenarios were compared with the new product version and business requirements of FairPoint

·   Worked on migration of data using VUU (Version Upgrade utility); analyzed data issues faced during VUU dry runs; compared FX Bill Invoices with BP Bill Invoices; performed module configuration and testing

·   Provided Production Support involving end to end execution of billing jobs, defect fixes of billing system processes (COM,MCAP,CAP) and Verizon specific billing modules (like IGEN)

·   Created billing data reports using Unix shell scripts and Oracle PL/SQL to:  Gather information for DSL, FIOS users; determine accounts that overlap and possess both DSL and FIOS; and determine accounts that overlapped and possessed 2 FIOS Products

 

Environment: Kenan FX/Arbor Telecom Billing platform, Oracle PL/SQL, Unix Shell scripts, SQL Loader, C language

Configuration Management: CVS

 

 

Project- Accenture/Hawaiian Telecom

Responsibilities

·   Developed production level PL/SQL scripts to perform system wide updates and achieved 80% resolution of billing defects

·   Performed system wide analysis for updating Billing Active Date for all customer accounts and resolved time stamp incompatibility issues

·   Analyzed applicable Kenan database triggers, constraints and related fields to define the system wide update approach; documented the same for official reference.  

·   Validated Kenan configurations of billing entities - services, packages, components, products, contracts, discounts

·   Performed root cause analysis of bugs to include determination of impact to other customers. Responsibility included clearing up all the errors before the bill cut.

·   Increased productivity of the development team by providing exhaustive documentation of the analysis done and possible solutions to fix the bug

 

Environment: Kenan FX/Arbor Telecom Billing platform, Oracle PL/SQL, Tuxedo

Configuration Management: CVS

 

 

Employer: Tech Mahindra Limited India

Senior Technical Associate – Dec12 2005 to Mar31 2006

 

Project- Kenan FX/Arbor Telecom Billing

Kenan is an ordering and billing framework that uses modular, multi-tiered client-server architecture.

 

Responsibilities

·   Performed code maintenance with significant technical and functional domain knowledge

·   Worked closely with Project Managers, Customers and the development team

·   Responsible for impact assessments, change summaries, unit testing and preparing release notes

·   Provided accurate documentation for all tasks

 

Environment: Kenan FX/Arbor Telecom Billing platform, Oracle PL/SQL, Unix Shell

scripts, Tuxedo

Configuration Management: CVS

Employer: CSG Systems India Private Limited(Comverse)

Software Development Engineer – Mar07 2005 to Sep30 2005

 

Product- Telecom Billing Kenan FX    

CSG System’s product Kenan FX handles customer billing activities for all phases of an account lifecycle.

Customer Center is a Java based GUI which interfaces with middleware Tuxedo servers that load balance request/response transactions between GUI and the underlying business logic written in C, C++ and database layer.

 

Responsibilities:

·   Worked on requests from QA and client to perform code enhancements, maintenance, fixes

·   Troubleshot database and installation issues

·   Performed code change impact assessments and documented Change summaries

·   Created high level diagrams for code enhancements

·   Performed peer code reviews

 

Environment: Kenan FX/Arbor Telecom Billing platform, C++, C, Java scripts for API testing, Unix (HP-UX, Sun Solaris), XML, Oracle PL/SQL

Middle Ware: Tuxedo

Configuration Management: CVS