David Coblentz Email & Phone Number

Dallas-Fort Worth, Texas, Us

Dallas-Fort Worth, Texas, Us

My responsibilities include analysis, problem solving, enhance and maintain a large integrated COBOL II, IMS system for a major airline corporation. I also create Rexx/ISPF/Dialog Services utility tools to make developers more efficient and productive. I assisted in integrating a mainframe source management software system, Compuware’s ISPW, into the current environment.

Phoenix, Arizona, Us

iOS Frameworks, Objective C, Cocoa, C, Xcode, XML, Javascript, SQL Lite, Adobe Photoshop, Illustrator, Fireworks----------------------------------------------------------------------------------------------------------------------------------------- As an iPhone developer, maintained the Apriva Wallet custom demo app software written in iOS. This software app utilized various iOS Frameworks as well as XML, Javascript, some OpenGL ES, SQL Lite, graphics artwork and animation.- As part of custom software development, worked extensively with Adobe Photoshop, Illustrator and Fireworks to produce high quality graphic artwork for apps and websites.- Maintained custom demos for sales staff and team developers in TestFlight (an iOS app testing web site).- Participated in SCRUM project management methodology activities.- Assisted in the design of new projects and authored, as a technical writer, Project Scope Documentation.

Technologies: XML, Visual Basic----------------------------------------------------------------------------------------------------------- Developed a complex Visual Basic program for a world wide corporation legacy system to automate critical reporting for upper management from a very large, complex financial Excel document. Previously this Excel document which contained over 20 pages of financial data had to be updated manually requiring 24 hours of skilled labor. After automation, updates were completed in a few minutes while accuracy was ensured.- Founded BIT Software Inc. to create software solutions, database applications and web services among others.- Studied various technical PC languages such as Lua, Javascript, HTML, XML, etc. to transition from mainframe to PC software development.

New York, Ny, Us

- Led a team of 4 developers to re-engineer and re-build the Letter Generation System (LGS). Process execution time was reduced 80% saving 10's of thousands of dollars per month, while system stability was increased from 50 to 99%.- As a Lead Software Engineer created a new Lotus Notes system to track developer technical help requests regarding the complex Amex IT Environment. Provided expert technical assistance to junior developers.- As a member of a professional applications maintenance Team; identified problems; diagnosed causes and implemented corrective actions to five systems concurrently. These systems utilized IMS DB/DC, DB2, ISPF Dialog Manager, Script, VSAM, TAMS, XCOM, JCL and COBOL 11/370.- Participated in 7X24X365 on call coverage rotation.Supported various high profile software systems while designing updates to them to improve performance and reliability.

- coded an analysis subsystem to report deficiencies of a computer letter generating software package. This subsystem utilized a mixture of programming languages including COBOL, Assembler and SAS.- maintained the letter generating software package, which involved extensive MVS / JCL modifications and maintenance to a mixture of COBOL / Assembler programs.- also updated documentation using IBM Script.- developed personal utilities written in TSO / ISPF Dialog Manager to increase daily productivity and verify accuracy which lowered maintenance costs significantly.

Atlanta, Ga, Us

- as an Assembler Programmer, coded production programs and JCL to select name lists from a large data base according to the customers criteria. This included COBOL programs to reformat customer data, Assembler programs to select names from a data base and SAS programs for reporting results.- utilized Roscoe's RPF facility to write team utility programs to increase team productivity while performing repeated daily tasks.- as a System Analyst, analyzed system resources and made recommendations for changes to enhance system storage and productivity. This involved extensive VSAM file analysis as well as testing COBOL and Assembler production programs. Coded SAS programs to report results and support recommendations.

- Managed a staff of 3 employees processing customer computer data tapes producing micro filming fiche.- Operated micro film duplicators, film chemical processors and computer fiche maxchines to process customer computer tapes.

- as the System Programmer for a national micro graphics corporation, created assembler language programs to accommodate special customer requirements. Requests were also processed using proprietary software on DEC PDP-11 mini computers.- Started as a driver. Earned over 4 promotions culminating in the Systems Programmer position.

Certificate Of Completion, Computer Programming / Accounting

High School Diploma, Geometry/Geometric Analysis