Igor C.

EXPERIENCE SUMMARY Computer languages 10+ yr. Java/Servlets/Java Beans/Swing/JDBC/RMI, J2EE EJB&JSP 9+ yr., JMS 8+ year, XML&XSL 6 year, 15 yr. C, 10 yr. C++, 5 yr. Clipper, 3 yr. Visual Basic, 4 yr. CGI/HTML, 2 yr. VC++/MFC, 2 yr. CORBA (OmniORB),JavaScript Operating systems DOS, Win95/98/NT/2000/XP, 6 yr. UNIX (various flavors), 7 yr. Linux, Solaris Databases DB2, Oracle 9i/10g, CodeBase DBMS, Dbase, MySQL, Access, Java databases, InstantDB, Coherence Networking 4 yr. Novell 3.12, 3 yr. Lantastic 5.0, 10+ yr. TCP/IP, intranet/internet WWW servers (APACHE), Tomcat, POP/SMTP servers, deep knowledge of internet protocols BEA Weblogic (versions 6,7,8,9), IBM Websphere 6.X,Tomcat Middleware TIBCO Rendezvous, JMS, WebMethods Broker Developer tools Jbuilder, Visual Studio, GNU tools, Starteam, RCS/CVS, Struts, ERWIN, Ant, Maven 1.x,2x, Spring Framework 1.x,2.x, Hibernate3.x, Rational Rose Studio, TogetherJ, ArgoUML, Junit, Jprobe WebMethods,ILOG/Jrules, Spring MVC Technologies UML, OOA/OOD, RUP, SDLC, XP, TDD, Agile methodologies, SCRUM, SOA architecture, Component architecture, Enterprise Integration , Flex AIR OBJECTIVE My goal is to help customers maximizing ROI for their technology investments by providing tactical and strategic advice. WORK EXPERIENCE October 2008 – Present Riot games (Los Angeles) Technical Solution Architect (contract) • Code Performance Analysis and code optimization • Design and implementation of highly scalable REST services for MMO game such as o Account service o Matchmaking o Chat o Game server o Store integration • Application architecture scalability analysis • Utilizing Coherence grid technology for data tier scalability o Optimizing grid performance o Cache configuration and tuning o Implement grid based processing for business capabilities • Establish performance and operational monitoring procedures • Design reviews • Code reviews April 2007 – October 2008 Jonah Group Technical Solution Architect (contract) (MOS project phase I & II) • Mentoring and coaching in agile methodologies (TDD, User stories and pair programming) • Analysis and documenting user requirement and business/technical solution design using UML o Use Cases o Static class models o Sequence diagram o Software Architecture Documents as per client’s process • Assisting project managers in scoping and sequencing of deliverables • Gap analysis and technical issue management • Design, documentation and implementation of claim processing solution for US based health care provider, specific business capabilities addressed are o Eligibility o Coordination of benefits o Deductible co-pay o Contract Search • Lead delivery of the first phase of the MOS project implementation on time October 2005 – April 2007 The Loyalty Group Senior Solution Designer (contract) AMMIS services (agile methodology) • Provided solution design in migrating or aggregating capabilities form legacy systems across enterprise and migration to the SOA architecture • Mentoring and coaching in agile methodologies (TDD, User stories, pair programming) • Design, development and production deployment (weblogic cluster) of o Collector online statement service (winner of Chairman Award of Excellence) § Providing accurate and real time collector statement for period o Gold tracker calculator service § Calculating score for promoting to Gold collector status based on previous collector behavior o Account service § Providing consistent collector balance across enterprise § Providing account withdrawal capability o Email service o Collector service (accessing two database resources Oracle & DB2 in distributed transaction) § Update collector details § Enroll collector § Get collector details May 2004 – October 2005 The Loyalty Group Senior Technical Solution Architect / Chief Solution Engineer (contract) SOA and CRM initiatives • Member of SOA architecture group creating best practices and standards for company • Lead architect for contact capture application and for campaign management application, team consists of 6 System Engineers and 15 developers • Introduced agile methodologies in planning and development • Introduced continuous build to development process • Advisor on EAI strategies • Using Rational Rose to develop high-level design (concepts & blueprints, use cases, business capabilities, system capabilities, technology capabilities) and detailed design (class, sequence, activity, state diagrams). • Design Business Object Model (BOM) for ILOG/Jrules rule engine used for response detection • Architect integration solution between mainframe and J2EE systems using WebMethods adapters and broker • Specifying and assigning development tasks and providing initial estimates • Designing of SOA components and event driven SOA (EDA) architecture • Defining SOA interfaces and domain model • Lead detail component design • Conduct code inspections April 2003- May 2004 The Loyalty Group Technical Solution Architect (contract) Back End Bonus project • Design and development of multi tier application for rewarding customer behavior. Based on customer behavior analysis application issues rewards for redemption • Design of domain model and component models, detail design of implementation classes • Application has ability to tie complicated customer behaviors to various rewards formulas supporting ad hoc logical expressions and attributes. Currently application is in production and issues around 1 million rewards per month • Used J2EE (JMS/EJB/Struts,XML,XSL,XSD) , Microstrategy java interface for data mining, Rational Rose for UML modeling, Weblogic 8.1, JUnit July 2002 – April 2003 The Loyalty Group Technical Solution Architect (contract) STAR8/9 project • Design and implementation of multi tier application (using Struts,JMS,EJB,XML,XSL,XSD) for marketing campaign management • Architecture and development of JMS based workflow framework • Lead and mentor team of 4 in successful implementation of project • Project delivered 30 times speedup shortening time to deliver campaign from weeks to few hours (campaign can have few million collectors) • System is in production and up to date it created over 30000 marketing segments and is capable of generating 36 million collectors record per hour • Used Rational Rose for UML modeling,Weblogic 7-8, J2EE , JUnit March 2002- June 2002 PRI Automation Java integration architect (contract) • Design and development of the server side Java components for workflow integration in the semiconductor facilities utilizing Tibco rendezvous and BEA MQ • Defining and designing components interaction and developing XML communication protocol for the material tracking system and the equipment • Used Rational Rose for UML design January 2002- March 2002 The Loyalty group Senior J2EE consultant (contract) • Finalized detail design and architecture of the 3-tier application (struts, EJB, XML) for Campaign management. Used Rational Rose for diagrams and XML Spy for the XML mapping. • Defined XML workflow horizontally between components in the tier and vertically between tiers to achieve maximum flexibility • Developed all back end EJB components (Session, Entity EJB and DAO objects) for the application September 2001 – January 2002 PRI Automation Java/Tibco Architect (contract) • Architected and designed java integration solution for the automated semi-conductor production lines. The solution involved tight integration between products from the multiple vendors using the java workflow engine to achieve synchronization of events between equipment. Tibco rendezvous is used as a bus for the data flow. The solution utilized P2P and publish subscribe models of delivering the data. The design is done in UML with Rational Rose. • Used Tibco/Rendezvous as messaging bus for connecting MES equipment via Java proxy to the database system. Designed Rendezvous based java connector for unsolicited and P2P messages from equipment to the MES system. Designed structure of XML messages for the protocol - DTDs. Defined structure of the subjects and topics for the Rendezvous messages and designed mapping to the action handlers. The XML messages were parsed using DOM parser. • Introduced a new concept, command execution engine, which acts as scripting language for describing automation processes • The solution uses different sets of equipment and can interface with any equipment via plug-ins provided in the framework architecture. This flexibility is achieved by reusing the GOF patterns (Factory, State, Command and Proxy). My primary responsibility was to design reusable OO framework for the product so it will be possible to use JMS/Rendezvous as message transport layer. July 2000 – September 2001 Red Celsius Inc. Java Architect/Team Lead (contract) • Re-architected e-commerce B2B framework to be modular, event driven with conditional paths of execution and to follow MVC pattern. The framework is highly customizable with plug-in components, enabling high flexibility of the underlying business logic. Current framework is used in production at [login to view URL]. Deployment was done in the cluster environment. • Used role based security in EJB container to enforce proper rights of usage • Used Rational Rose/UML for use cases, state diagrams and class design • Senior member of the team which delivered Internet B2C 3-tier pilot solution for GM in just 90 days and generated approximately 10 million USD in revenues • Working on high traffic B2B & B2C e-commerce internet product utilizing JSP, EJB and Java enterprise solutions on BEA Weblogic application server • Design parts of the application for dynamic presentation of the web pages using JSP/XML/XSL and EJB to represent current customer preferences regarding the language and chosen profile. This was accomplished by using factory and command pattern in the Model-View-Controller (MVC) based framework. • Used XML and XSLT for data transfer between partners (B2B) and presentation of data collections and compositions to the clients (B2C) for the greatest flexibility of the client presentation layer. Usage of XML enabled generation of the customized HTML based on the same data source without changing application business logic. • Designing and writing of the data access objects and EJBs to access Oracle database using the meta database layer and JDBC. April 2000 - July 2000 JAMM consulting, TX, USA Java Architect (contract - telecommute) • Designing and coding Java Internet banner server for high traffic sites. Server architecture was designed in UML with Rational Rose and used GoF patterns to provide flexibility in design • Analyzing customer requirements and architecting the application structure • Designing and coding light Java HTTP server to provide self sufficient environment to run servlets and serve static web pages to the clients.. • Development of the GUI (Java/Swing) administration application • Designing and coding protocol and modules for talking to various servlet engines December 98 - July 2000 Eyelit inc. - Mississauga, Ontario Java Product Architect/ Team Leader (contract) Languages: Java, C/C++, and Corba/RMI/Tibco Operating systems: Windows 95/NT, HP-UX, VMS, Linux • Team leader in all stages of the project until successful delivery • Using Rational Rose / UML for designing and use case analysis • Designing and coding of C/C++ agent (middle tier aka. PRemote) for interprocess communication of legacy system (non Java) and proxy server (Java) over TCP/IP (sockets) • Designing and coding of XML/Servlet code for communication between legacy application and Java client • Getting user requirements, architect the application, mentor and lead a team of 3 developers on new project, Java thin client for interaction with legacy systems via TCP/IP and middleware from Bea systems MQ (DEC MQ) or Tibco Rendezvous, targeted audience were production site managers in semiconductor fab using handheld computers • Defined structure of the messages between tiers using Tibco RV as messaging bus • Tutoring, teaching and introducing new technologies to other developers and report development progress to the owners of the company • Extensive analysis of client requirements and design application architecture (UML) and sophisticated GUI • Heavy Java coding of core transaction part of application, presenting project progress to upper management and scheduling future development tasks between developers June 98 - December 98 Eyelit inc. - Mississauga, Ontario Senior Java developer (contract) Languages: Java, C/C++, and Corba/RMI Operating systems: Windows 95/NT, HP-UX, VMS, Linux, Tibco • Designing and coding parts of proxy server for Operator Station (mission critical thin client GUI for controlling manufacturing process in the semiconductor facility), server side Java with RMI & TCP/IP socket communication • Coding and designing of GUI parts for client interface (Swing), targeted audience are equipment operators in semiconductor fab • Wrote server side clients for command translation and connecting to legacy system • Wrote and document part of SDK for current product line and prepared documentation June 94 - April 98 Croatian National OIL company (INA) - transport division System Architect (contract) Languages: C/C++, Clipper, Visual Basic, Java, Oracle, CORBA Operating systems: Dos, Windows 95/NT, HP-UX • Coordinate software development and specifications requirements with corporate IS division. Advised management about proper hardware and software upgrades and implementing proper technologies • Analyze system requirements for transition to CORBA based environment (C++, Java, OmniORB, Linux). • Architect and developed software for ordering and tracking oil distribution. Developed software for ordering and distribution of oil from refinery to gas stations. A solution includes sending orders from central division via modems to dislocated units and gathering relevant data form dislocated unit on demand. • Architect and rewrote financial software for division. • Developed front end program for transferring financial data to corporate mainframe (VAX) May 93 - June 94 Comp Graph d.o.o. CalComp plotter support division Software Engineer (permanent) Languages: C/C++, Visual basic • Designed custom software drivers for legacy software • Build company LAN from ground up (designed and planned). NOS used was Lantastic and WfWG • Consulted customers and install plotters and software drivers 92 - 93 ABE Marketing d.o.o. Software developer (Contract) Languages: Borland C/C++, CodeBase DBMS • Designed database for marketing business information about companies • Designed and installed company LAN from ground up (Lantastic and WfWG ) • Developed data entry software • Developed multilingual front end for search engine 92 D-Plus d.o.o. Software developer (Contract) Languages: Borland C/C++, CodeBase DBMS • Designed and developed POS system software • Designed and developed ordering and warehouse software 91-92 City of Zagreb division for Development, construction and planning Software developer (Contract) Languages: C/C++, CodeBase DBMS • Developed and designed software for cost analysis of construction costs and analysis of bids for construction contracts. Developed database and software for documentation of completed and works in progress