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­­­­­Sofia  Muzyka

309 Flagler Dr, Centreville, VA, 20001

 703-362-9876,  sofia@cox.net

Professional Profile

·         Over 15 years of paid IT experience, mostly in enterprise architecture and development

·         Focus on Spring / JEE frameworks and RDBMS technologies

·         Successful record of delivering quality solutions for complex problems

·         Excellent background in Mathematics, Radio Electronics, Information Security

·         US Citizen. Active Secret Clearance

Areas of expertise:

·         Core JEE: Servlet, JSP, JSF, EJB, JMS, JDBC, JTA, JPA, EJB

·         Enterprise Frameworks: Spring, Hibernate, iBatis, JPA, JDO ( Kodo )

·         Web UI frameworks: Struts, Spring MVC, Tomahawk, Richfaces, SiteMesh, Velocity, Tiles

·         Web UI languages and technologies: CSS, HTML, JavaScript, AJAX, JSON

·         Web Services technologies: SOAP, WSDL, UDDI, JAX-RPC, XML, REST, BPEL

·         RDBMS (Oracle):  Oracle 11g, SQL, PL/SQL, Data Warehousing, Advanced Queues

·         Enterprise Security: PKI, PAM, JAAS, WIA/WNA, SSO

·         Identity Management: LDAP, MS Active Directory, Oracle Internet Directory

·         Desktop App Development: Java Swing, MS Visual C++,  MFC. 

·         SDLC methodologies: RUP, UML, Agile methodologies

·        Enterprise reporting: Oracle Developer suite, Crystal Reports, Jasper, JReports

·         Application and Web servers: Weblogic, WebSphere, OC4J, Tomcat, Apache, IPlanet

 

Certifications and training

·         Sun Certified Programmer for Java 2 Platform 1.4 (2005)

·         Sun Certified Web Component Developer (in process)

·         Sun Certified Java Developer for Java 1.7 (in process)

·         Advanced web development with Spring framework course (2008)

·         Advanced core Spring framework course (2009)

·         Sun Certified Enterprise Java Architect course (2009)

Employment History

Independent Contractor	Centreville, VA	Nov 2004	Present
IBM Business Consulting Services	Fairfax, VA	Oct  2002	Nov 2004
PriceWaterhouseCoopers Consulting	Fairfax, VA	Feb  2002	Sep 2002
Independent Contractor	Centreville, VA	Oct  2000	Feb 2002
IMCI, Inc	Ashburn, VA	Nov 1999	Oct 2000
De La Rue Card Systems	Chantilly, VA	Oct  1998	Nov 1999
Moscow­­­ Cellular Communications	Moscow, Russia	Nov 1995	Oct 1998
Federal Agency of Government Communications and Information	Moscow, Russia	Sep  1993	May 1998

Most Recent Professional Experience

JEE Development,  Architecture Consultant

Department of Defense

US Transportation Command (USTRANSCOM) and Military Surface Deployment and Distribution Command (SDDC)

December 2009 – Present               |               Fairfax, Virginia @ SRA International

For 26 months, helping SRA International to implement and maintain the Defense Personal Property Program / DP₃

Technology stack: EJB 3.0, JSF 2.0 ( MyFaces, RichFaces), JDO(Kodo), (Weblogic)JMS. Home-grown ESB that provides content-based message routing and some orchestration capabilities like itinerary-based message processing. Castor-based framework for Java-XML marshalling and IOC support. Oracle 11g database as persistent storage.  Sterling Software’s Gentran for EDI to UDF conversion. Application web modules are deployed inside Siebel Portal, CISCO CSS Content Switches for internal load balancing, Blue Coat SG reverse proxies for SSL acceleration, DMZ protection and geographical load partitioning.

Work performed: helped SRA International with Java development and production support of the global 24/7, high-volume system. Took over architectural oversight of key systems, while participating in team development efforts. Problem solving throughout the whole stack from setting up HTTP load balancing to debugging webserver authentication plugin to implementing ETL for reporting solution and fine-tuning JDO queries. Details available upon request.

JEE Lead Developer, Architect

Department of Justice

Executive office of United States Attorneys ( EOUSA ), Case Management Systems ( CMS )

June 2006 – December 2009          |               Washington, DC  @ IntelliDyne, LLC

For 41 months, helped IntelliDyne LLC with a range of efforts aimed at phased conversion of the DoJ legacy systems into modern applications built on JEE technology stack

Technology Stack: Oracle 10g AS (10.1.2), 10g RDBMS, Oracle Internet Directory (OID) LDAP, MS Active Directory, Oracle Identity Management Suite, Oracle Single Sign-On server, Servlet 2.3, JSTL 2.0, Hibernate 2.0/3.0, Struts 2.1, SiteMesh, Spring 2.5, Business Objects / Crystal Enterprise XI, Solaris 9, Eclipse 3.x IDE, Subversion 2.4, Ant 1.6, SOA, SOAP, Web Services, JAXB, AppFuse.

Work Performed: performed project initial bootstrap, from hiring initial team members and setting up basic project infrastructure, to establishing requirements baseline and technical roadmap. Co-designed a DOJ-wide portal architecture for the CMS. Implemented and maintained two major web applications ( USA-5 and NLIONS ).  NLIONS  included visual query builder and custom search engine integrated with Cognos Business Intelligence platform via web services over SOAP protocol using Apache Axis. Details available upon request.

Summary of Professional Experience Prior to June 2006

Client / Employer	Work	Position	Period
Department of Justice / BAE Systems	DRMS Project.	Senior JEE Developer, Architect	June 2005 - June 2006
BearingPoint.	eMerge project	Senior JEE, Oracle Developer, SOA Architect	March 2005 - May 2005
College Board / IBM	New SAT project	Senior JEE Developer, Architect	August 2004 - March 2005
Bloomberg L.P / IBM	BDAP project	Lead JEE Developer	June 2004 - August 2004
Fannie Mae / IBM	CORE Project	Lead JEE Developer, Architect	March 2002 - June 2004
Freddie Mac	Loan Prospector Facilitator Project	Senior JEE  Developer	October 2001 - February 2002
Gazelles, Inc	Web Site Design and Development	Lead JEE Developer	February 2001 - October 2001
Labportal, Inc	Web Site Design and Development	Team Lead/Senior JEE Developer	October 2000 - February 2001
NEXTEL Communications	Application Design and Development	Lead JEE Developer	October 1999 - September 2000.
De La Rue Card Systems	Application Design and Development	Senior JEE Developer	November 1998 - October 1999
Moscow Cellular Communications	Oracle commercial software design and development	Senior Oracle  Developer	November 1995 - October 1998
Government of Russia, Federal Agency for Government Communications and Information, Information Processing and Information Security	Windows Graphical application development, digital signal processing	Lead C++ Developer	September 1993 - May 1998

Details of Professional Experience Prior to June 2006

DRMS project at US Department of Justice. Senior Developer, Architect. June 2005 to June 2006. (Through BAE Systems)

BAE Systems is developing a highly sophisticated DRMS system for managing all the real estate asset operations across the Department of Justice. At a very high level, the system manages physical real estate assets and fully supports rental and billing activities. The whole application is Java-based, deployed on Jrun application server. Front end is implemented using Struts 1.1. The reporting is implemented using JReports.

Work performed:

·        Mr. Muzyka has been tasked with implementing an advanced Property Search functionality and in parallel, with improving the performance of existing search mechanism. After analysis and prototyping using Oracle Analytical Functions, Mr. Muzyka completely replaced the existing search engine with new implementation which performed from 32 to 190 times faster search. When implementing custom facility for dynamic query building, Mr. Muzyka wrote a compact custom persistence framework to augment the JDBC 3.0 and externalize SQL code from Java. Apache Digester was used to store SQL in a simple XML file to provide one-unit storage for related queries while preserving ability to load each of them by an alias into the Java code. Presentation layer was implemented using Struts 1.1, JSP and Expression Language (EL) 1.0. 

Technical Environment:

                Oracle Database Server 9.2, SQL, PL/SQL, Oracle Analytical Functions, Macromedia Jrun Application Server 4.0, J2EE suite, Apache Struts 1.1, Hibernate 3.0 for persistence management, Tortoise Subversion for version control, Apache Ant 1.6 for build automation, JAXB for Java to XML binding, Apache Digester, JInfonet Jreports Enterprise Server for reporting, Linux as the target deployment OS.

BearingPoint. eMerge project. Senior Developer. March 2005 to May 2005 ( concurrently with DRMS at BAE ).

BearingPoint is assisting the Department of Homeland Security in major reorganization of e-procurement for all 22 DHS internal agencies. The thrust of the effort is to move away from heavy use of proprietary integration and plumbing code by utilizing the Service Oriented Architecture (SOA) approach.

Work performed:

·      Mr. Muzyka led the prototype and proof of concept work aimed at replacement of ASP and PL/SQL legacy code that integrates Compusearch Prism procurement system and Oracle Federal Financials. Specific tasks required tracing the execution path from ASP page to the PL/SQL procedure and replacing it with webservices-based implementation using Oracle BPEL (Business Process Execution Language) Process Manager and Oracle Advanced Queues.

Technical Environment: Oracle Appserver 10g, Oracle JDeveloper with BPEL designer, Oracle BPEL, Oracle AQ, Process Manager, BEA Weblogic 8.1.4, Oracle RDBMS 10.1g.

College Board. New SAT project. Senior Developer. August 2004 to March 2005.

The College Board has undertaken a major initiative to update its SAT test product line. This is happening in parallel with development and integration of a few major information systems. The J2EE suite is the technological backbone of the effort.

Work performed:

·      Mr. Muzyka individually developed a Struts-based web application that provides qualified users with secure access to the essays written stored in College Board database. Core functionality includes search, select from search results for detail view, assembling essay deliverable for detail view, viewing essay detail and generating printable version in PDF on the fly. Security is JAAS-based, using custom-developed security provider deployed on Weblogic 8.1.4 appserver. Data is retrieved from Oracle DB using straight JDBC, PDF was generated using iText v1.1. Build and deployment done with Apache Ant 1.6 scripts.

·   Mr. Muzyka individually implemented a number of incoming and outgoing data feed interfaces used by College Board and its vendors for data exchange. Implementation included either parsing a text file according to the XML feed specification and storing data in Oracle DB, or extracting data and generating a text file based on XML spec.

Technical Environment: Java, Eclipse, Session EJBs, Jakarta Struts 1.1, Servlets, iText, Oracle DBMS, BEA Weblogic Server 8.1.4, BEA XML Beans, JDBC, Quest Software TOAD.

Bloomberg L.P.  BDAP project.  Senior Developer, Architect.  June 2004 to August 2004.

BDAP project was major effort of Bloomberg L.P. to replace its core software written in early 80s with modern web-based application. Mr. Muzyka was tasked with developing recommendations for persistence solution and implementing enterprise security solution.

Work Performed:

·      Defined and justified persistence strategy for the enterprise application. Included the requirements gathering, feasibility study, comparing available persistence management frameworks, developing recommendations and presenting them to the senior management.  Prototyped with Hibernate, TopLink, EJB CMP, straight JDBC, Oracle stored procs.

·      Defined the security solution requirements, designed and prototyped the approach.  Implemented custom authentication module by integrating Radius Authentication Server with Apache web server. Individually set up all environment and developed custom Apache plugin module, using GNU C compiler on Linux. 

Technical Environment: browser and .NET clients, IBM HTTP Web Server on Linux, EJB-based business layer on IBM WebSphere 5.0, XML–based JMS bridges between Java and .NET backed by IBM MQSeries. CVS, Windows 2000, Linux, Solaris 9.0, Oracle 9.x RDBMS.

Fannie Mae, CORE Project, March 2002 to June 2004.

The client asked PricewaterhouseCoopers (later IBM) to help it replace legacy core business systems to achieve greater flexibility in its technical and business infrastructure. During 26 months on the project, Mr. Muzyka worked on three different assignments:

Work Performed:

CORE Deployment Team, Senior Developer, Architect, September 2003 to May 2004.

·      Mr. Muzyka integrated custom security solution into the application deployment architecture. Mr. Muzyka audited corporation-wide Secure Key Environment solution developed by the Enterprise Architecture group and proposed a design improvement. Mr. Muzyka individually prototyped integration of another key security component, Weblogic Custom Security Provider and built a parallel application deployment environment off of a number of ClearCase branches and Weblogic UNIX domains for a number of the project internal products. In this environment, Mr. Muzyka performed necessary changes in the Ant build scripts, Java code, Weblogic servers environment and startup scripts, When individual tasks were understood and delegated, Mr. Muzyka coordinated the effort toward the implementation.

CORE Technical Services Team, Senior Developer, Architect, January 2003 to September 2003.

·      Mr. Muzyka took over, re-designed and re-implemented the existing Corporate Global Transaction Tracking System, developed originally by the Corporation’s Enterprise Architecture group. Working closely with the CORE project Architecture Team, Corporation’s Enterprise Architecture group, Mr. Muzyka has established a new shared vision of the product, presented design and implementation plan to the Senior Management and was one of three implementers. Mr. Muzyka wrote all of the DB interface part, using JDBC extensions and Oracle proprietary interface for object mapping between DB and Java to pass array of objects to the database procedures. Also, Oracle bulk reads and writes were used to avoid switching between SQL and PL/SQL engines. 

CORE User eXperience Framework Team, Senior Developer, Architect.  March 2002 to January 2003. 

·  The User eXperience Framework was built to leverage and extend the Apache Struts framework.  Mr. Muzyka has been instrumental in shaping the product vision, establishing baseline architecture, and evolving it. He wrote the original implementation of the generic pluggable List Manager component that provided out-of-the box support for pagination in the list view. He also maintained the product’s Ant build scripts. 

Technical Environment: Windows, Sun Solaris, Oracle RDBMS, Java, full J2EE suite, BEA Weblogic, Struts, Ant, Xerces, Xalan, JUnit HTTPUnit, CruiseControl, XML, XSLT, ClearCase, ClearQuest, RequisitePro, Eclipse, JProbe, Araxis.

Freddie Mac, Web-Based Systems Design and Development, Senior Developer, October 2001 to February 2002. Working as a member of a big team, Mr. Muzyka implemented server-side functionality for various screens of Freddie Mac's web-based, automated underwriting system, Loan Prospector. He partially developed an automatic code generator for data objects mapped to database tables. These objects were used to avoid performance overhead.

Technical Environment: Java Servlets, EJB, JMS, BEA Weblogic, Windows, Sun Solaris, Visual Café, Platinum Harvester.

Gazelles, Inc, Web Site Design and Development, Lead Developer February 2001 to October 2001. Together with another senior developer and a project lead Mr. Muzyka designed, implemented, and deployed a web site for a startup company that was a subsidiary of Gazelles, Inc.  All development was done on a remote server. Mr. Muzyka gathered the requirements for the site and designed, implemented, and deployed the site. He administered the database and server in the chosen environment. Mr. Muzyka developed a custom web tier framework that significantly increased team productivity.

Technical Environment: Linux, Oracle RDBMS, BEA Weblogic, J2EE Suite

Labportal, Inc., Web Site Design and Development, Team Lead/Senior Developer. October 2000 to February 2001. Labportal wanted build a major web site that would link doctors and patients with medical laboratories for order placement, processing, and billing. Mr. Muzyka was one of six team leads on the project and led a group of four developers while directly reporting to the company vice-president.  Mr. Muzyka worked with project management to establish unified build process. He played instrumental role in creating project-wide guidelines for build process and created a command line build tool that was adopted throughout the project and enforced build consistency. Mr. Muzyka also introduced and defended idea of a framework approach for web tier development on the project. He created and propagated, within his team, a lightweight framework. The framework allowed automated data binding and request dispatching operations, thus allowing developers to concentrate on business logic

NEXTEL Communications, Application Design and Development, Lead Developer, October 1999 to September 2000. NEXTEL needed a web-based national system for network uptime reporting. Mr. Muzyka was on a team of three senior developers who gathered requirements by interviewing the NEXTEL personnel, produced robust software specifications document, and proposed the initial design. The team also performed cost-benefit analysis on build vs buy desicion that involved a comprehensive comparison of major commercial off-the-shelf available network management products. As the project expanded, Mr. Muzyka prototyped the solution and later led the prototyping effort which included database modeling and implementation and coding.

Technical Environment: J2EE, BEA Weblogic, Oracle RDBMS, Windows, Solaris. Microsoft (Visual Source Safe, Transaction Server), Imprise Visual Café.

De La Rue Card Systems, Application Design and Development, Senior Developer, November 1998 to October 1999. De La rue needed to replace its processing software in order to increase speed and flexibility of its production cycle. Mr. Muzyka developed packaged processing modules. He also developed a fast-running fault-tolerant application that registered binary order submissions from B2B customers, entered them into the transaction processing system, and dispatched then for further processing. Mr. Muzyka developed a web-enabled reporting application that provided transaction processing statistics.

Technical Environment: COBOL, C++, Java, DCOM Objects, Oracle (Application Server, Reports Server, Developer, PL/SQL), Window, Microsoft Visual C++ Studio, RogueWave,

Moscow Cellular Communications, Oracle commercial software design and development, Senior Developer, November 1995 to October 1998.  Mr. Muzyka developed Oracle-based labor tracking system that facilitated tasks tracking at levels from company down to individual employee.  The tasks were represented graphically using the tree metaphor and could be decomposed into subtasks with subsequent assignment to individuals of company entities like departments.  The system had built-in reports to track a multitude of statistics, from task progress to individual load and performance of an employee in terms tasks execution.

Technical Environment: MS Windows, SCO Unix, Oracle Developer 2000 suite, MS Visual C++, SQL*PLUS, PL/SQL.

Government of Russia, Federal Agency for Government Communications and Information, Information Processing and Information Security, Lead Developer, September 1993 to May 1998.

Mr. Muzyka created a signal processing toolbox graphic environment where digital signal processing circuits could be built for execution out of elementary blocks using drag and drop metaphor and could be extended in future independently from the base system. He programmed an I860 RISK processor in a proprietary vector assembler language to perform high-speed signal processing tasks and created a number of stand-alone graphical applications for data visualization. He researched available adaptive filtration algorithms and customized one of them with subsequent implementation in C++ language.

Technical Environment: MS Visual C++ Studio, Microsoft OLE, COM objects, Windows NT.

Education and Certifications

M.A., Applied Mathematics; Institute of Cryptography, Communications and Information, Academy of Russian Security, 1993.

Languages

English, Russian, Ukrainian                                     

Work Eligibility

US Citizen, Active Secret Clearance

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