Software Development professional, 30 yers experience
Resume:
David M. Mitchell
Elmhurst IL ***26
630-***-**** (Home)
*********@*********.***
EDUCATION
**** ******* **********, ***********, *******
B.A., Computer Science
**** ******* of DuPage, Glen Ellyn, Illinois
C Language Proficiency Certificate
EXPERIENCE
March 2011 - HomeFinder.com
November 2015 Chicago, IL
January 2015 – November 2015 Senior Systems Analyst
On the Data Team.
Responsible for the design, development, testing and support of new user tools in both Perl and PHP, as well as, enhancement or replacement of core processes for acquisition of data from outside data providers, conversion to HomeFinder.com standards, validation of content, and delivery to the data stores that feed the production website. HomeFinder.com is a Agile Development Environment, and uses Git for software version control.
Developed and implemented enhancements to RETS processing to allow for more frequent data updates without excessive reprocessing of data and over loading the system resources. Work was done in Perl and SQL.
Using frequency of problem types reported to our help desk, designed and developed WEB based tools using PHP to allow front line Customer Service Representatives to be able to resolve issues that originally required second level support associates to resolve.
2011 – January 2015 Technical Data Analyst
On the Data Ops Team.
Primary responsibility was the “Feed System” in a UNIX environment. This is the process that brings external data into HomeFinder and makes it available for use by the company’s Website.
Provide second level support for any external or internal issues relating to Feed Data. Developed tools and utilities using Perl and SQL for both Oracle and Postgres Data Bases in a UNIX environment.
Redesigned the system that processed approximately 50% of our daily data feed so that it ran consistently in 90 minutes instead of the 5 hours plus it had previously been running, along with a similar reduction in system resources consumed.
Redesigned other processes so that they were less complex, more efficient of system resources, and ran in smaller runtime windows.
As part of the migration from Oracle to Postgres rewrote the application that defines “Feeds” to the HomeFinder system as a php web based application. Utilizing best practices for screen design enhanced the usability of the system reducing the amount of time required to bring a “Feed” on board and make the data available to the Website.
May 2008 - Health Care Services Corporation
February 2011 Chicago, IL
2008 – 2011 Information Specialist on the Information Requirements and Data Analysis (IRDA) Team.
A Data Analyst working with Data Modelers, Business Analysts, and source system SMEs to develop program Data Maps that are used by the programmers as their spec and requirements sheet in support of the ODS Database and DMIH Data Hub. Trained new associates how to develop Data Maps according to department requirements and Specifications.
Developed utilities using Access to provide change control
Functions for the Meta Data Database that contains the
Information that makes up the Data Maps.
Extensive use of SQL in data profiling, and research as
well as production data validation and issue resolution.
June 1995 - TransUnion LLC
January 2008 Chicago, IL
2006 - 2008 Senior Technical Analyst in the ETL Development Group working with AbInitio on Linux servers. I work with internal customers developing their requirements, design, develop, implement and support their systems.
2001 - 2005 Technical Lead for the TCPS Database Build project. I was responsible for all technical aspects of the build process that ran on IBM MVS platforms, using Assembler, C, COBOL, REXX, TSO File Tailoring, as well as the JOBTRAC job scheduler, SyncSort, File Aid and IBM DB2 SQL queries and load processing. I worked with a team of two developers in addition to myself and two business analysts.
1997-2001 Team Leader for Software Development. I supervised a team ranging in size from 2 to 13, developing software in IBM Assembler, C, COBOL and REXX. Including certification of all applications for Y2K compliance.
1995-1997 Technical Support Analyst.
Providing all end user and operational support for all Marketing Services Production Systems 24/7. Support and correcting applications written in IBM Assembler, COBOL and C. As well as developing utility applications using Assembler, C, and REXX. Operational support and development for JOBTRAC job schedules. Designed and developed the Technical Assistance Request (TAR) System, in Visual Basic for submitting and tracking requests to the Technical Support Team. This application was used from 1996 until 2006 when it was replaced by the UniCenter tracking system.
October 1987 – Creative Automation Company
May 1995 Hillside, IL
1994 – 1995 Software Development Manager
Responsible for the team developing and maintaining CASS Certified Address Matching Software and the DSF Licensed Address Matching Software.
Worked on the assessment of porting Assembler Language based systems to a C environment. Developed test bed programs to compare performance of same function programs in Assembler and C. Developed several Assembler modules to be used as C functions to increase performance.
1987 – 1994 R & D Programmer
Designed and developed the CASS Certified, Address Analysis System (ADR). The system performs ZIP code correction, address standardization, ZIP plus 4 and DPC coding. The programs edit U.S. Postal Service directories into a condensed format for every deliverable address in the United States. Accept input client address information and convert them into the format matching the postal directories. Addresses are then matched to the postal directories and quality of match evaluation is performed. These systems maintained over 130 million U.S. Postal addresses and are updated monthly.
Note: During this time period I developed a Student Course Records system for a Seminary, and a client mailing system for fund raising efforts of a local charitable organization. These systems were developed using RBase Database, Turbo Basic, and C on an IBM PC.
January 1986 – GTE Communications Systems, Inc
October 1987 Northlake, IL
1987 Senior Technical Programmer
Provided all technical support for IBM Office Automation products: DISOSS, PS/370, DW/370 and PM/370, running under CICS/VS in an MVS/XA Environment. Installed various products for the MVS environment using SMP/E
Provided technical support for the IBM 3270/PC and its API Programming facility. Taught operations personal how to program the 3270/PC in BASIC using the API interface to automate console operations and create monitor applications for different devices to attempt to restart when failure notices were received and send out alarms if unable to restart.
Provided all technical support for a network of IBM 8100 systems running the DPCX Operating Systems
1986 – 1987 Technical Programmer
Provided technical support for DISOSS, PS/370, DW/370, PM/370 and the DPCX/DOSF environment.
May 1982 – Ancilla Systems, Inc
January 1986 Elk Grove Village, IL
Systems Programmer
Provided all technical support for a network of IBM 8100 processors running the DPCX operating system and the DOSF office automation system. Designed and developed various utility and application systems for the 8100 systems. Install and maintain all Host Support products for the DPCX operating system.
Installed and supported various Mainframe based software packages for the DOS/VSE environment.
Provided all technical support for the corporate office IBM PC’s installed software packages, expansion boards and provide any necessary user support and basic training.
Designed and developed programs in IBM 370 Assembler for the DOS/VSE and VM/CMS Mainframe environments, using DPCX Programming statements for the 8100 and BASIC and PASCAL for the IBM PC.
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