Java_J2EE_Siddhartha_Kejriwal
- 1. Siddhartha Kejriwal Resume Siddhartha Kejriwal E-mail: siddharthkejriwal@gmail.com Phone: (813)-470-1269 (813)-808-6303 PROFESSIONAL SUMMARY • 4.5 years of exponential IT experience in Application Analysis, Technical Design, Development, Implementation, Performance Tuning, Security solutions and testing in all stages of Software DevelopmentLife Cycle(SDLC) forWeb-basedApplications. • Expertise in Java/J2EE, Spring 3.x, Struts 1.x/2.x, Core Java, EJB, Servlets, JSP, JavaScript, AJAX, ExtJs, and ORMtoolslike iBatis. • Hands-onknowledge and strongexperience in the design and implementation of RESTful web services includingauthenticationandauthorization usingJ2EEroles. • Expertise in developingweb-applicationwhichinteracts withTAM/LDAP. • Experience in implementing J2EE Design like MVC, Adaptor, Singleton and Factory patterns. Have alsoimplementedJavareflections. • Implemented2ndfactorauthenticationusingcookies inWebBrowsers. • Good understanding of Enterprise Infrastructure knowledge needed for a web-based application whichincludes WebServers,TAM,LDAPandWebSeal. • Proficient in Object Oriented Analysis and Design (OOAD) based on Use Cases, Class Diagrams and Sequence diagramsusingMicrosoftVisio. • Excellent experience in developing applications using Eclipse IDE and IBM RAD in association with IBM WebSphere 7.5and8.5. • Application development experience using IBMWAS work manager along with collection framework and genericsconceptsfromcore JAVA. • Extensive experience with Enterprise Java Beans (EJB) – Session and Message Driven Beans. Also accomplishedSpringIOCdependencyinjectionwithEJB. • Experience in migrating legacy application to use latest software such as Java7/ WAS8.5.1 and TAM 6.1. • Good knowledgewithPVCSandSVN versioncontrol systems. • A self-motivated professional and natural communicator possessing great technical and problem- solvingskillsandproventobe an exceptionalteamplayer. TECHNICAL EXPERTISE: SDLC Methodology Agile andWaterfall. Programming Language Java,J2EE, C, C++ Frameworks & IDE Tools Struts1.x/2.x, Spring 3.X, ANT, Maven, AJAX, iBatis, Eclipse 3.x, RAD 7.x/8.x,IntelliJ, IBMWAS7.x/8.x,AQT, TOAD, Putty
- 2. Siddhartha Kejriwal Resume CA WorkloadAutoSys. WebService REST Web-Development Technologies Servlets, JSTL, JSP, XML, HTML, Java Script, EXTJS, JSON, CSS, JUnit, MQs, TAM, LDAP. Front-endFramework HTML, JavaScript,ExtJs, JSON, CSS Security Tools Fiddler,Burp,Paros,Firebug, Database DB2, MongoDB, ORACLE 9i/10g/11g, SQL Server10.0/11.0 VersionControl Tools SVN and PVCS ApplicationServer WebSphere 8.x/7.x/6.x, Tomcat6.0/7.0, OperatingSystem WindowsXP/VISTA/7/8.x,Linux,Unix (AIX) EDUCATION: Bachelorof TechnologyinComputerScience andEngineering. SikkimManipal Institute of Technology,India. PROFESSIONAL EXPERIENCE: Client:DTCC,FL JAN 2014 – Till Date. Role: Sr. Java Consultant The DepositoryTrust& ClearingCorporation (DTCC) isaU.S. post-trade financial services company providingclearingand settlementservicestothe financial markets.Itprovidesawayforbuyersand sellersof securities tomake theirexchangeinasafe and efficient. Thiswebbasedapplicationprojectwasusedtomanage Role basedauthorizationof companywide product.Authenticationaswell asauthorizationathierarchal level wasaccomplished.Usersbothon distributedaswell asmainframe were able toaccessthisapplicationseamlessly.The crux of application was a combinationof astrong powerful concepts andunion of stronginfrastructure. Responsibilities: • Developed high available, customer facing web based applications on J2EE platform using Spring, iBatis,JSPs,Struts, RADIDE and WebSphere ApplicationServer • Developed a very strong service layer of web-based application using MQs, JMS and IBM Work Manager. • Designed the architecture for exposing the application APIs using REST Web Services. (This include UML diagramsand Technical document) • Implemented REST Web Services to communicate to external third party vendors in making crucial authorizationof rolestocustomers. • Implemented security fixes based on Vulnerability Assessment reports using security tools such as Fiddler,ParosandBURP. • Implemented JavaAPI whichinteractswithIBMTAM 6.0/6.1. • ImplementedFactoryDesignpatternforsendingemailstothe clients. • Implemented2ndfactorauthenticationusingcookiesinWebbrowsers. • Responsible formigratingapplicationusing Java5/WAS6.1toJava7/WAS8.5.1.
- 3. Siddhartha Kejriwal Resume • Responsible formigratingapplicationusingTAM6.0to TAM6.1 • Developed various technical documents which include Class Diagrams, Sequence diagram, UML diagramsand Use-Case diagram. • Developed presentation, business, service and persistence layer components over J2EE usingStruts,SpringIOC(DependencyInjection) and iBatisframeworks. • Responsible for understanding the BRD (Business Requirement Document) and FS (functional specification). • DevelopedUIcomponentsusingHTML,JSP,CSS, JavaScript,JQuery andAJAX. • Held collaboration sessions in various SDLC lifecycle phases – Requirements, development, all testingphasesandimplementation. • Charged with the responsibility of deployment manager in every environment including development,QA,PSEandproduction. Environment: Java 5/6/7/J2EE JSP, JMS, Eclipse, Struts2, Spring framework 3.x, Hibernate, Web Services, WAS 7.5/8.5, JavaScript, JQuery,Fiddler,BURP,Paros,Putty. Client:DTCC,FL OCT 2013 – DEC 2013 Role: Java/J2EE Consultant The DepositoryTrust& ClearingCorporation (DTCC) isaU.S. post-trade financial services company providingclearingand settlementservicestothe financial markets.Itprovidesawayforbuyersand sellersof securities tomake theirexchangeinasafe and efficient. Limitmonitoringweb-basedsystemwasdevelopedaspartof thisproject.The fluctuatingpricesof differentcommodities were monitoredusingthisapplication. Dashboardwasdevelopedandalert mechanismwasimplementedaspartof thisweb-basedproject. Responsibilities: InvolvedinAnalysis&Designof the application. Developedahighperformingweb-basedmonitoringtool usingcachingtechnologyof Gemfire. Createdentityclassesforpersistent/Daolayer. Understood the three tierarchitecture forthisapplication. Responsible forunderstandingthe functionalityspecificrequirements. Designinganddevelopmentof different core modules. Performance enhancementachieved usingGemfire cache. Use javamail for sendingthe alertmails. Workedon Incident/Problemmanagement Workedfor Change Managementand performance reportgeneration MonitoringAutoSysjobsforenvironmentrestartsinProdand non-Prodregions. Environment: Java 7/J2EE, JSP, JMS, Gemfire, STS, JavaScript, JQuery, UNIX, Pulse, VSD, Data Browser, GFSH, AutoSys, SQL Developer.
- 4. Siddhartha Kejriwal Resume Client:KPMG, Chennai June 2013 -OCT2012 Role: Java/J2EE Developer KPMG the audit, tax and advisory firm, is the U.S. member firm of KPMG International Cooperative ("KPMG International"). KPMG is a global network of professional firms providing Audit, Tax and Advisory services. We operate in 155 countries and have more than 162,000 people working in member firmsaroundthe world. Automation of filing Foreign Account Tax Compliance Act (FATCA) form by different stakeholders across the different domains to achieve the simplicity in filling the form was accomplished as apart of his project. The main challenge was to come with the dynamic were forms were created on the fly accordingto the userfulfillment. Responsibilities: • Involvedinfull life cycle developmentof the project. • An integral part of the design phase and direct collaboration with the client to understand theirneeds. • Lead a teamof 5 members andin charge of 3 modules. • Usedcomprehensivetechnique tocome upwithsolutionforachievingthe tasks. • UsedSpring,Hibernate,ExtJSandHTML duringthe developmentphase of the projects • Used Java generics, JSON and collections concepts to generate dynamic forms for FATCA compliance. • Implementation of DTO patterns to achieve comprehensive communication between differentlayers. • WrittenJUnitTest casesfor performunittesting. • Responsible formigratingcode todifferentenvironmentslikeSITandUAT, Production. • RecruitingandTrainingof associates Environment: Java 5//J2EE JSP, JMS, Eclipse, Struts2, Spring framework 3.x, Hibernate, WAS 7.5/8.5, JavaScript, JQuery. Client:ACIWorldwide Inc. July2011 - June 2013 Role: Jr. Java/J2EE Consultant ACI Worldwide is a payment system company headquartered in Naples, Florida. ACI's products and services are designed to facilitate electronic payments and are used principally by financial institutions, retailersandelectronicpaymentprocessors. Dynamic wire limits module was developed using Spring MVC, ExtJs, Ajax and JavaScript to handle wire transaction taking place in banking product. The product being developed was “Enterprise Banker” whichisbeingusedbytop notchbanksin US. Responsibilities: • Involvedinfull life cycle developmentof the project.
- 5. Siddhartha Kejriwal Resume • Designof HighLevel andLow Level Documentdeliverablestothe clients. • Interacted with Business Analyst to understand the requirements and for any clarifications required by the team, followed agile methodology and SCRUM meetings to track, optimize and tailorfeaturestocustomerneeds. • ImplementedDTOpatterntotransferdata. • Implementing Performing Proof of Concepts (POCs) for the implementation of the design. Development of the complete User Interface Screen for giving entitlements to the user for differentactivities. • Implementation of Security features such as Cross Site Scripting and SSURT token authenticationtopreventfromexternal attacks. • Took care of the performance of the webpagesandensuredgreateruserlookandfeel. • Testing the developed application across different browsers and operating systems to ensure consistencyacrossthe same. • Active role inunittesting,integrationtestinganddefectfixing. Environment: Java 5/6/7/J2EE JSP, JMS, Eclipse, Struts2, Spring framework 3.x, Hibernate, Web Services, WAS 7.5/8.5, JavaScript, JQuery.,ExtJs4.x,BURP.