Joseph T. Pepersack 
                               Systems Architect

Phone: 443-996-2268 
Email: joe@pepersack.net 
Web: joe.pepersack.net

Summary

     * A creative hands-on leader with over 21 years experience, exceptional
       technical skills, and a business-focused outlook
     * Background in both software development and systems operations,
       spanning diverse industries, gives an unique perspective on how to
       create and deploy highly scalable, reliable, and secure systems that
       deliver a positive return on investment
     * Extensive career commitment to staff development and team building
       through mentoring, teaching, and knowledge transfer
     * Open to permanent technical leadership positions as well as long and
       short term consulting opportunities

Key Accomplishments

  Leadership

     * Led initiative to adopt and leverage distributed "big data"
       technologies - such as Hadoop, Hive, and HBase - to replace
       traditional RDBMS-based applications
     * Re-architected data warehouse from a relational model to a key-value
       based design; developed tools and procedures to migrate from Oracle to
       HBase
     * Performed a feasibility study and cost/benefit analysis to re-engineer
       a troubled client-server system using a scalable, distributed,
       cloud-based architecture
     * Lead database designer for AIMPages.com, AOL Member Directory 2.0, and
       the tagging & commenting infrastructure used by multiple AOL
       properties
     * Lead database designer for Benelogic, a web-based benefits enrollment
       system

  Software Engineering

     * Designed and implemented multiple Map-Reduce applications
     * Developed reporting application using Perl and Amazon SimpleDB
     * Developed tools to generate XML sitemaps for millions of user-created
       web pages
     * Developed ETL, administrative, and reporting tools in Perl, C, and
       Unix Shell
     * Extended and maintained AOL's "master control" system for systems
       operations
     * Wrote and tuned stored procedures for Sybase, MS-SQL, MySQL and
       Postgres
     * Designed generic security and authentication module for web-based
       applications

  Systems Operations

     * Administered 50+ replicated Sybase, MS-SQL, Postgres, and MySQL
       servers supporting the AOL.com portal site as well as other AOL
       branded properties
     * Administered 25+ multi-terabyte databases supporting ENTREZ and
       PubMed, the world's largest public repositories of genomic data and
       medical journal abstracts

Proficiencies

  General

     * Hadoop / MapReduce
     * Distributed Computing
     * Cloud Computing (AWS/E2C)
     * NoSQL Architecture
     * Functional Programming
     * Scalability & Capacity Planning

  Languages

     * Perl (Mason, DBI, mod_perl)
     * SQL (all major dialects)
     * Unix Shell (bash, csh, awk)
     * [X]HTML, CSS, JavaScript
     * XML and XSLT
     * C
     * Java (dated)

  Databases

     * HBase and Hive
     * Amazon SimpleDB
     * Sybase ASE, IQ, and Replication Server
     * BerkelyDB
     * MySQL
     * Postgres

Clients and Employers

     * Catalist - Lead Developer, Distributed Computing
     * Guest|Metrics - Sr. Systems Architect
     * Boston University CDIA - Instructor
     * America Online - Sr. Systems Engineer, Sr. DBA
     * National Library of Medicine - Sr. Sybase DBA
     * Benelogic - Sr. Database Architect
     * Verizon Communications - Sr. Software Engineer
     * Small Business Administration - Sr. Database Architect
     * Maryland Insurance Administration - Lead DBA
     * Los Alamos National Laboratory - Sr. Programmer / Analyst
     * United States Air Force - Programmer / Analyst, Software Tester

Education

   University of New Mexico
   Computer Engineering
   8/1993 - 5/1995

   C.C. of the Air Force
   Computer Science
   10/1989 - 2/1993

Other Skills

   Photographer
   Portfolio available on request