VIPUL LALKA
USA l vklalka@hotmail.com l http://www.oocities.org/vklalka

   
    Complete Name :Vipul Kishore Lalka

    Preferred Name : Vipul

    Email me at : vklalka@hotmail.com

OBJECTIVE
A challenging position providing the opportunity to expand upon Software Engineering and Management skills.

PROFILE
Software Development

• Worked in all areas of software development cycle.
• Analyzed software requirements & designed solutions.
• Written, tested and debugged code.
• Proficient in Object Oriented Design and Development.
• Managed multiple projects and junior developers in the team.
• Four years experience in Java related technologies like JNI, RMI, JavaBeans, JNDI, JDBC, Java Swing and AWT.
• Three years experience in J2EE related technologies like Enterprise Java Beans (EJBs), JMS, JSP, Servlets and J2EE design patterns.
• Two years experience in XML related technologies like XSL, and Web Services like SOAP, UDDI and WSDL.
• Four years experience in Object Oriented Design and Development techniques like UML and CRC Cards.

Personal

• Adapts easily to new environments and people of diverse backgrounds.
• Works well in a team-oriented environment.
• Takes the initiative to stay abreast of the latest technological developments in the industry.
• Excellent written and communication skills.
• Excellent problem-solving skills.
• Excellent at coordinating projects and activities.

Languages:                    J2EE, Java, C, C++/VC++, Pascal & BASIC.
Protocols, etc:               SIP, SIMPLE, VoIP, XML, XSL, SOAP, UDDI, and VoiceXML.
Application Servers:     WebLogic 6.x, JBoss 2.2.x & WebSphere 4.x & 5.x.
Operating Systems:      Windows 2003, XP, 2000, NT, 98 & 95, Linux, Unix, Solaris, Mac OS & MS-DOS.
Applications:                  Visual Basic, Microsoft Office, PhotoShop, Corel Draw & Aldus PageMaker.
IDE:                               WebSphere Studio Application Developer 5.x & Microsoft Visual Studio.

WORK EXPERIENCE - 5 years as Software Engineer

Software Engineer – 4 years 2 months                                                  Apr'00 – Present
Avaya Inc. Holmdel, NJ

Project: Avaya Interaction Center (IC) - Customer Relationship Management group (CRM R&D).

• Worked on a part of the Interaction Center (IC) Thin Client product, which involved extensive server-side java development and client-side JSP and JavaScript development.
• Part of a team involved in designing and prototyping a J2EE implementation of the IC Email Server, originally implemented in CORBA (VESP). Rational XDE and Visio 2002 were used to draw design diagrams and WebSphere Studio Application Developer 5 (WSAD 5), was used for development.
• Gained extensive experience in using WSAD to develop J2EE applications, test them in the Test Server Environment, and deploy them on to WebSphere Application Server 5.0.
• Conducted and documented performance tests for a part of the design that included the use of Java Message Service (JMS).
• Part of a multi-location team involved in prototyping the Product Line Engineering Process.
• Responsible for maintaining the specialized J2EE development and test environment for my team.
  

Project: Unified Communications Solutions (UCS)

• Managed multiple projects and junior software engineers in the team.
• Designed and implemented portlets that accessed rules stored in a MySQL database via EJBs, extracted the data in XML and then used the user's device information to translate the data to HTML, WML or VoiceXML using XSLTC.
• UML techniques like sequence diagrams and use cases were used to design the application. The design made extensive use of the MVC (Model-View-Controller) design pattern.
• Jetspeed was used as the Portal on WebLogic Application Server. This application was also ported to work with IBM WebSphere Portal Server and developed using WebSphere Application Developer.
• Designed and developed a SIP-based IM client and Presence Service. The Presence Service was based on the SIMPLE protocol and the J2EE components consisted of Stateless Session Beans and Entity Beans that implemented the Session Façade pattern.
• Actively involved in the design and development of J2EE components in the UCI Architecture using UML. UML tools like Rational Rose, MagicDraw and Visio, were evaluated during the course of the project.
• Completed a 2-week comprehensive training course on J2EE & BEA's WebLogic server and a 1-week course on XML & Web Services.
• Conducted a series of tests to compare the performance of Java Message Service (JMS) vs. Java RMI on various Application Servers like WebLogic 6.0, J2EE reference implementation from SUN and JBoss 2.2.
• Co-authored a paper titled 'JMS Solutions to Common Problems in Distributed Middleware Application' that was presented as part of the Avaya Software Symposium held in Nov. 2001.
• Represented my team at various trade shows like SuperComm, Networld+Interop, etc. to promote our products.

Project: iCosm

• Instrumental in getting a rules-based engine ready for a scheduled internal Beta release by modifying the GUI using proficiency in Java Swing.
• Responsibilities included designing a part of the system (including a SIP stack), and managing the project - scheduling it and delegating responsibilities to a colleague.
• Designed and implemented a SIP Proxy Server and SIP Stack.
• Developed a GUI on the Pingtel SIP phones using the Pingtel XDK (similar to Java AWT).
• Designed and developed a Java RMI-based server capable of accepting connections from multiple clients and sending/receiving appropriate messages to/from a media coordinator that was responsible for media related functions.
• Coordinated integration of the various components like the server, the Media Coordinator, the Calendar Server and the GUI clients.
• Used JMF (Java Media Framework) to enable audio conferencing between multiple GUI clients (using RTP).
• Part of a team that designed a robust and scalable architecture for the Presence Object and Event Framework.
  

Software Engineer – 1 year and 5 months                                          Oct'98 – Mar'00
Visionary Products Inc.

• Worked on implementing a java based imaging software. The main tasks included developing, porting, maintaining software code on different computer platforms, system integration and testing.
• Conducted research in the field of Stereo & Computer Vision and Map building as part of my Masters' Thesis: Robust Map Building based on Stereo Imaging.
• Designed and developed the Waypoint Software Tool in VC++, as a part of the 'RedRover goes to Mars (RRGTM)' project (part of the Mars 2001 Satellite program).
• Developed an interactive multimedia teaching system & internet-based Tele-robotics commercial software for a new line of Lego kits, in Java.
• Used JNI (Java Native Interface) for communicating with the Lego motor. Developed a Java interface for 'Video for Windows' on Win95 and NT 4.0 platforms, and for QuickTime on the Mac.
• Developed dynamic link libraries to enable serial port communications and capture images from multiple cameras using QuickTime, on the Mac.
  

Teaching Assistant - 2 months                                                            Aug'98 – Sep'98
ECE Department, Utah State University
- Demonstration of experiments in Antennas and Radiation and grading the lab books.

Research Assistant - 1 year                                                                Jun'97 - May'98
Bhabha Atomic Research Center (BARC), Mumbai, India.

• Study of ISDN exchange and development of Automatic trunk testing software for ISDX Digital PBX in the C language; involving serial port communications.
• The software developed was similar to popular terminal emulation software available in the market, like Telix, Procommplus, HyperTerminal and others.
• The coding involved accessing the 8259A PIC (Programmable Interrupt Controller) and the 8250 UART (Universal Asynchronous Receiver/Transmitter) and their registers to enable serial port communication.

PROJECTS
Computer Networking

• Modified the Kermit Protocol stack to implement IP fragmentation. In Kermit, the final IP datagrams in Ethernet II format were sent to the LAN driver. The IP fragmentation procedure intercepted them, created fragments and sent results to the LAN driver. These packets were received on another machine, and reassembled.
• Tested performances of Van Jacobson’s congestion avoidance, fast retransmit and fast recovery algorithms and Nagle’s congestion control algorithm in Kermit. The effects of file transfers were observed, when both/ one of these modes were turned on/off in the Kermit code.
• Comprehensive study of the ARP (Address Resolution Protocol) and RARP (Reverse Address Resolution Protocol) protocol.
• A report and comprehensive study of the Domain Name System (DNS). This project explored the details of walking the DNS tree to resolve and IP name into its IP number, requiring an Authoritative answer rather than a cached one, and not letting the external name servers to do the recursion. The DNS tree was explored from the root downward, using the Kermit code.
• Design of an EtherSwitch with 14 10BaseT ports and one 100BaseT backbone.
• Various projects in Unix Network programming, including designing and implementation of pre-forked, forked, pre-threaded and post-threaded web servers to handle multiple HTTP clients. The main emphasis on these projects was creating a very fast web server, which could create and destroy connections at high speed. The programs were compiled on a system running UnixWare 7.

• A report and comprehensive study of the Domain Name System (DNS). This project involved studying the DNS in detail, including each of the header fields.
• A term project in VC++ incorporating various TCP/IP protocols, methods of error control, flow control, incorporating logical clocks and using gossip messages to update data in multiple servers. The project was a Parcel Tracker system, which started with a single server, able to accept connections from a client. The following features were added to it, as the term progressed:
• Write test cases for the simple server and client. Creating a client socket for communicating with the server. Sending out a request for the parcel, receiving and displaying the parcel on the server window.
• Designed a protocol to get a listing of the parcels by destination city. Also designed a button handler to send and receive the query.
• Extended design with abstractions for datagrams, requests and responses. Rewrote the client’s communication logic to support time-out and retires and to correlate request messages with response message.
• Introduced multiple servers, with parcel data replication using primary-copy architecture (primary server propagates changes to the slaves) on each of these. The primary server propagated changes to all the slave servers by sending gossip-like messages using a reply-request style of communication. Added feature to allow clients to retrieve data from any of the servers and ability for them to create, delete and update parcels. The client and server used an optimistic form of concurrency control.
• Introduction to CORBA and a project based on the same. This included – defining object classes using IDL (Interface Definition Language), running the IDL file through language pre-compiler (VC++), adding implementation code to the skeletons, compiling code, linking and executing. It also involved instantiating objects on the server, binding class definitions to Interface Repository and registering run-time objects with Implementation Repository.

• Specified the behavior of interacting concurrent processes using Java's threading features and verified its behavior using automated tools like FDR.
• Designed a Non Blocking Alternating Bit Communication Protocol using Java and CTJ (Communicating Threads for Java) library functions.

• Project for the Microchip PIC 16C74A microcontroller. This project involved implementing an A/D converter, a digital Butterworth filter and a Pulse Width Modulator (PWM) in assembly code. The modules were developed such that all the sub-tasks could run simultaneously.
• Introduction to working with VxWorks.

• Design of 128 bit pipelined load-accumulate-store circuit in the 1.2um CMOS technology, and simulation in PSpice. Mask layout of the circuit using MOSIS layout tools.

EDUCATION
MS (Electrical Engineering)                                                                Aug'98 – Apr'00
       Utah State University, Logan, Utah                                                   GPA - 3.667
BE (Electronics & Telecommunications Engineering)                       Jun'94 – May'98
       Vivekanand Education Society’s Institute of Technology, University of Bombay, Mumbai, India.

ACCOMPLISHMENTS

• Promoted to MTS (Member of Technical Staff) from MTS1, within a year of working at Avaya.
• In one of my Manager’s own words “Vipul has become the “Go-to” person of my team”.
• US Patent Pending – “Programmable Presence Proxy For Determining A Presence Status Of A User”, Boyer, D.G., Khakoo, S.A., Lalka, V.K., Sasmazel, L., Sumetpong, P.

RELEVANT COURSEWORK
Introduction to Computer Networks (ECE 6600)
Advanced Computer Networks (ECE 7610)
Distributed Systems Design (CS5200)
Concurrent Systems Engineering I (ECE 6750)
Concurrent Systems Engineering II (ECE 7710)
Real-time Systems (ECE 5780)
Device Level Digital VLSI Design (ECE 6450).

REFERENCES:
Available on request.

HOBBIES :
I love traveling, listening to music, watching movies, reading, dramatics and hanging out with friends. I hope to earn enough money to be able to travel all over the world, visit new places and meet new people. I listen to any kind of music, as long as it's NOT Rap ! My favorite bands are Pearl Jam, Metallica, Live, Eagles, Pink Floyd .....and many more. I love watching comedies, classics, and Sci-Fi movies. I've always actively participated in dramatics since my high school days. If I hadn't taken up Electrical Engineering and Computers ...I probably would have been in the Fine Arts - Dramatics !

SPORTS :
Cricket, tennis, basketball, soccer, badminton, ping-pong and chess.

This page was last updated on: June 19, 2004