• Languages: C; C++; Java; Perl; Python; Tcl; Expect; JavaScript; COBOL; Pascal; FORTRAN; SAS; LISP; Assembly
  
• Internet Development: Java Applets, Servlets and JSP pages using Tomcat and Jboss application servers. Also mod perl, CGI in Apache.
  
• Component Technology: Java Beans; Java Messaging Service.
  
• Operating Systems: UNIX (Linux (Fedora Core, Debian), Solaris, Cygwin, BSD).
  
• Databases: Postgresql; MySQL; Oracle; Sybase. Proficient in SQL scripting, stored procedures, accessing databases from programming languages (JDBC, Perl DBD).
  
• Security: IPSec VPN; OpenVPN; IPCop firewall; SSL.
  
• UI: Struts; Java AWT; Java Swing.
  
• Development Tools: Eclipse; emacs; vi; gdb; jdb; ant; make; code profiling; Bugzilla.
  
• Version control: RCS; CVS; subversion; SCCS; Clearcase; PVCS Tracker. ScmBug (Subversion-Bugzilla integration).
  
• Administration: DNS; sendmail; TCP wrappers; sshd; httpd; UNIX cron; SystemV start-up scripts; systemd-style startup; IPSec VPN; IP masquerading; shorewall; IPTables.
  

• Design, develop and test secure web applications using Java,Tomcat and Postgresql on Linux. Functionality includes surveydata-entry, file-transfer utilities, administrative tools andsophisticated reporting. Principal applications permit InpatientRehabilitation Facilities and Long-Term Assisted Care Hospitals to track patient-care outcomes , document medical necessity, and transmit required data for Medicare reimbursement.
  
• Design, develop and test stand-alone Java reporting applicationsusing Postgresql and Java, and running on Linux. Applications createreporting data sets used by web applications when displayingreports.
  
• Achieved order-of-magnitude reduction in execution time ofreporting application by adding multi-threading, events, andmanaged relationship of time-periods to data sets.
  
• Design, develop, test and deploy web application feature enabling data download using templates which user may create, save and share. Feature makes extensive use of Javascript and AJAX to improve responsiveness.
  
• Extend template-download system by developing Java application to perform unattended downloads. Doupled throughput of application by refactoring into a multi-threaded implementation. Use pam_pgsql to give users one-stop password management for the web application and the download service.
  
• Extend authorization and authentication of principal company web application by developing and testing code which authenticates over SSL against an LDAP server (Active Directory), and queries the LDAP server for privileges available for use in the web application.
  
• Develop and test web service to interface customer's Health Level 7 (HL7) data feed with internal Mirth HL7 engine.
  
• Design, develop and test secure file-transfer application writtenin Java, which can be executed manually or automatically inresponse to an external event.
  
• Developed tool to generate Java source files from tables inPostgresql database.
  
• Deploy major releases of mission-critical web applications to production servers, with extensive database migration.
  
• Migrate company's source code from Virtual Source Safe to Subversion, preserving change history. Use Subversion externals to implement code-sharing already in place by virtue of VSS linked files.
  
• Provide secure networking for HL7 interfaces with customer health-care facilities through monitored SSH tunnels.
  
• Migrate network security from SSH tunnels to IPSec VPNs, while continuing to provide monitoring.
  
• Develop bash scripts and Java applications to perform off-site monitoring of mission-critical applications.
  
• Developed suite of scripts for nightly offsite backup of mission-critical file server and database servers, meeting federal guidelines for secure transmission and storage of Private Health Information (PHI).
  

• Create and administer Virtual Machines running Debian Linuxusing XenServer and XenCenter. Upgrade VMs for customers withfull testing of users' applications after upgrade. Set up redundant VM installs over disparate networks with automated backups.Maintain security on VMs using Shorewall and TCP wrappers.
  
• Create Debian package to automatically set up new VMs with 'company standard' set of packages and configuration files.
  

• Assisted in maintenance of third-party simulation software usedto describe corporate capital position in order to satisfyregulatory requirements. Software was written in C++ and ran onSolaris.
  
• Wrote and maintained web application using JBoss and Sybase onSolaris to assist economists with use of simulation software.
  
• Wrote Java application to manage execution of external processes.Application could be controlled via Java Messaging Service (JMS)from a remote application, such as a web application running on adifferent machine.
  

• Developed fault-tolerant application server using Java, XML andMySQL on Windows 2000.
  
• Ported server from earlier Solaris version, in response tointerest from architecture team of a Windows-based call-centerplatform.
  
• Evaluated different options for JVM, RDBMS and JDBC driver,provided detailed performance testing, analysis, and finalrecommendation.
  
• Achieved order-of-magnitude improvement in performance beyondwhat was achieved in Solaris version, within one-month timeframe.
  
• Gained acceptance of server as a platform component, despiteinitial concerns from architecture team regarding performance.
  
• Wrote 65-page functional specification and design for integrationof server into call-center platform, including a client API forvarious platform components to access server.
  
• Implemented application support library for telephony engineproduct, using previously developed extensibility framework.
  
• Wrote users' guide for extensibility framework.
  
• Ported application needed by telephony engine's security systemfrom OS/2 to Win32. Corrected obscure coding error in OS/2version which led to intermittent failure of ported version.
  
• Modified previous design of resource management and securitysystems to provide design of feature control for call-centerplatform. Provided 35-page functional specification includingclient API. Presented to technical and marketing teams forreview.
  

• Led team to develop fault-tolerant application server using Java,C, XML and MySQL on Solaris.
  
• Mentored other developers on team.
  
• Wrote design document and test plan.
  
• Reorganized existing code, rewrote sections as needed,contributed new code.
  
• Achieved order-of-magnitude improvement in performance within onemonth timeframe.
  
• Developed and documented procedure for debugging native codeusing jdb, gdb and xemacs.
  
• Wrote scripts for build configuration, runtime configuration,installation, testing, database management and performanceanalysis.
  
• Wrote set of makefiles to build distribution and prepare forinstallation as Solaris package.
  
• Designed generic resource management for all areas of company'stelephony engine product, with focus on third-party licensemanagement.
  
• Designed security system for telephony engine to preventend-users from creating applications based on demo versions ofapplications sold by company. Used simple PKI with applicationcertificates, ensured ability to withstand various forms ofattack.
  
• Contributed to implementation plan for port of telephony enginefrom NT to UNIX.
  
• Contributed to design of extensibility framework for telephonyengine. Framework introduced plug-in style invocation ofend-user libraries from applications built for engine.
  
• Fixed bugs in telephony engine. Required quick learning ofproduct design, product API's, and use of product to generatetest scenarios. Worked with ODBC, Natural Microsystems CThardware, SpeechWorks ASR libraries, Rainbow dongles andCommetrex dongle driver.
  

• Developed C++ data access layer for web-based mortgage tradingsystem, going from initial concept to deployment in four months.
  
• Migrated code and data from Objectstore through Oracle to MS SQLServer. Addressed concurrency implications of eachmigration. Wrote C++ application to verify migration to MS SQLServer.
  
• Developed core software used in many company products, includingencryption class for user passwords.
  
• Rewrote key set of components comprising 16,000 lines of C++ and3,700 lines of Transact-SQL to address database concurrencyissues.
  

• Worked on in-house distributed application server written inJava.
  
• Implemented data access interface for mSQL and Object Design PSE.Developed mechanism to prevent duplication of persistent objectsunder PSE implementation.
  
• Built authorization framework using LDAP.
  
• Researched and implemented asymmetric public-key encryption usingEl-Gamal algorithm.
  
• Developed interfaces for user administration and documentmanagement using AWT and Swing.
  
• Developed tools to generate Java source files from brief textfiles and database schemae. Enabled same-day response tocustomer-driven schema changes.
  
• Developed classified ads system for the initial web site of theBaltimore Sun newspaper. Integrated data feeds from legacypublishing systems for classifieds and news, with automatedupdate of site. Designed and maintained database for ads andinterface for user queries.
  
• Developed prototype of intranet web-enabled database applicationsfor Coca-Cola Company. Worked with Oracle, Perl, CGI and NetscapeCommerce Server.
  

• Developed shopping application for Dischord Records(www.dischord.com). Used OO Perl and mod perl, developed tools togenerate code from database schema.
  
• Developed Java sales application using AWT. Development includedOOD, scenario diagrams, integration with Java Runtime Environment(JRE) and single-floppy installation.
  
• Used IP masquerading on a dual-homed Linux server to partitionT-1 over ISDN to remote private LANs. Required configuration ofseveral Ascend Pipe 50 routers.
  
• Used sendmail virtual hosting and private DNS to route mail tolocal POP server in private LAN.
  
• Tutored student in introductory Java class.
  

• Online class in Computer Organization. Answered questions, gradedhomework assignments and midterms for 30 students.
  

• University of Maryland University College.
  

• Haverford College, Haverford, PA.
  

• Proficient in French and Spanish.
  

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