Software Test Engineer

SREELAXMI UNNIKRISHNAN

Cell- 469-***-****

Email – *************@*****.***

Experience Summary

· Over 5 Years of Experience in Quality Assurance Testing of Telecom and Web Applications.

· Experience in testing solutions for carrier VoIP network which includes SIP Application Servers, Media Servers, Signaling Gateways and Soft-switches.

· Provisioning testing for Broadsoft soft switch in Verizon environment.

· Experience with Billing verifications and verification of System Migration process.

· Extensive experience in implementing QA Methodologies, test plans, test cases, test scenarios and test deliverables

· Hands on experience in software development, user interface development and web based applications with programming languages like JAVA, C, C++, HTML and SQL.

· Hands on experience with all phases of Software Development Life Cycle (SDLC).

Education

Masters in Computer Management

Pune University, Pune, India

Technical skills

Platforms WINDOWS and Unix

Languages C, C++, Java, JavaScript, Unix shell scripts

Protocols/Specifications SIP, MSCML, Radius, Diameter, HTTP, TCP/IP

Database MS-SQL Server 7.0, Oracle, MS-ACESS, MySQL

Testing Tools: SIPp, ITP (Verizon),WinRunner, Quick Test Professional

Mercury Quality Center, Load Runner

Software Experience

1. Verizon, Richardson, TX

Duration: May 2007 to till date

Integrated Administrative Console (IAC)-5 months

CSSOP Phase 1 provides a single entry point to functions currently accessed via multiple GUIs and complex navigation through existing screens (ICP Admin Console, ICP CPE Manager, IASA Administrator Interface, Basking Ridge IOBI Admin Console / IOBI CPE management services, Basking Ridge Operations Portal).

My role

§ Generation and validation of test suites for Broadsoft provisioning through IAC.

§ Played a lead role in Key group Functionality Testing.

§ Created test suites using Mercury Quality Center.

§ Reviewed test documents created by other members.

§ Reviewing and Debugging the SOAP XML APIs

IP Converged Contact Center (IPCCC) -2 yrs

IPCCC is a SIP Application Server platform for providing Toll Free Access for both PSTN and IP networks. The system components include Ubiquity SIP Application Server, Dialogic Media Server, Broadsoft Application server and Oracle Database.

My role

§ Generation and validation of test suites for IP Toll free application.

§ Installation and validation of new releases and feature functionalities.

§ Protocol and Feature functionality testing using SIPp and ITP.

§ Test script development using SIPp and Unix shell scripts

§ Validation using Soft phones and Polycom SIP phones

§ Creation of test documentation and review.

§ Used Mercury Quality Center to create test cases, execute test cases and log the results.

§ Mentoring off-shore test teams

§ Extensive understanding of SIP RFCs and MSCML protocols

§ Expertise in Billing related validation, which involves analysis of CDRs.

2. Genband Inc, TX

Duration: Jan 2007 to May 2007

C2 Controller

The C2 Controller provides signaling interfaces to the public switched network (PSTN) converting VoIP signaling into TDM signaling and vice versa while media gateway performs the bearer conversion. The C2 controller has a C2 Manager Element Management System, which is a web-based interface for operation, administration, maintenance and provisioning (OAM&P) of the C2 Controller. C2 Manager is a client server system.

My role

§ Installation of new releases of the C2 controller (upgrades)

§ Testing the call details in a CDR (Call Detail Record) for various call scenarios

§ Modifying, Updating and Querying Solid Database that C2 Controller uses.

§ Testing and verifying that C2 processes all XML requests under various scenarios.

§ Configured and used SIPp to emulate SIP calls

§ Used Test Manager (internal tool) to create test cases, execute test cases and log the results.

§ Used Problem Reporting Manager (internal tool) for Defect Tracking and Test Evaluation.

§ Used SQL extensively to query the database and update them.

3. Lozoic Inc, Redwood City, CA

Duration: April 2004 to Oct 2004 (Voluntary internship)

Last-hop presentation server

Last-hop presentation server provides a multi channel presentation interface. Customers/Enterprises/Carriers data content can be made generic as well as reachable effortlessly to various devices, using Last hop server.

My role

§ Requirement and Design of a specific customer web interface.

§ Development of new features to lasthop server.

§ Developing customer presentations and setting up demonstrations.

§ Bug Fixing

§ Designed a web-based task management system as well as analyzed, studied, installed and documented commercially available products.

§ Worked on technologies such as Java, J2EE architecture, Velocity & Tomcat, UML, PHP

4. Mahindra-British Telecom Ltd., Mumbai

Duration: April 2001 till – Nov 2002

Diameter Base Protocol

Diameter Protocol is intended to provide a base protocol that can be extended in order to provide AAA (Authentication, Authorization and Accounting) services to new access technologies. The Diameter Base protocol allows peers to exchange a variety of messages.

My role on this R&D project included studying on the following aspects of Diameter Protocol and preparing a draft on the same.

· Various types of peer-to-peer communication using Diameter Base Protocol.

· Role of Diameter Agents-Relay Agents, Proxy Agents, Re-Directing Agents.

· Security considerations for peer-to-peer communication.

· Securing Diameter connections.

PSSF (Product Support For Sterling Family) developed for Telesciences, USA

Sterling 5000 (ST5000) is a real time billing data collection and processing System. The purpose of the Sterling 5000 system is to collect and record billing data from a variety of switch types and output the data in a common format for downstream processing.

As a software engineer with team size 6 involved in Engineer in the following activities:

· Analyzed, Estimated, Solved & Delivered Enhancements & fix bugs as reported by Telesciences.

· Prepared documentation as per quality procedures for the above assignments.

· Helped other team members in some of their enhancements.

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