David Hershkowitz
One Jodi Court
Monsey, NY ****2
845-***-****-Home, 845-***-****-Cell
*****************@*****.***
SUMMARY: Sophisticated z/OS Systems Programmer professional with demonstrated expertise in all phases of
z/OS operating systems, CICS, VTAM, TCP/IP, USS and a multitude of related vendor products. High experienced
a pplications development with extensive COBOL and BAL programming. Diverse background at Fortune 500
companies with responsibilities that include installing, applying maintenance, configuring, and level-3 support.
E xpert analyst, able to identify systems/network issues and quickly apply effective resolutions, as well as establish
a nd implement backup and recovery plans.
E xpert organizational skills that include the ability to successfully manage complex projects and rapidly evolving
r equirements.
P roficiency in rapidly learning new skills and applying the knowledge to improve systems environment and
services.
E xcellent communications skills, with the ability to build and maintain relationships with upper level executives,
l eaders,
m anagers, and staff.
KEY QUAL I F ICAT IONS
z/OS Systems Programmer • P roject Management • A pplications Programming •
Audit P rocess & Compliance • P roductivity Performance Improvement • Strategic Technical Planning
Technical Support • D ue Diligence • Team Leadership • Q uality Assurance • C hange Management
System Analysis • Technology Evaluation & Deployment • Systems Management • I T Service Management
1/2014 – Present LasComp Institue of IT– Monvale, NJ
IT Training – Client/Server, Web Developing, and Database Programming & Certification
Programming in C#, SQL.
Programming in HTML5 with JavaScript, and CSS3.
Developing Web Applications with ASP.NET and MVC 4.
CAREER HIGHLIGHTS:
1/06 – 12/2013 Viable Properties – NY (Non-IT Related)
Real Estate Broker
Designed/Installed WordPress web site to attract clients. Installed WordPress/Plugins, created
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various HTML panels, and Plugin interfaces.
Implement SEO with defined adverbs for Pay per Click (PPC) online marketing schemes.
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Brokered many commercial leasing deals involving Office and Retail spaces located in Manhattan.
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Landlord - Tenant lease negotiations, submitting offers, counter-offers, final term-sheet, and
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reviewing lease.
Wrote/modified legal contracts, addendums, agreements, and meticulously coded settlement
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statements, with extensive use of Excel and Word.
3/01 – 6/02 JPMorganChase - NY
Senior VTAM, and TCP/IP Consultant
Key Accomplishments
• Successful global migration off obsolete unsupported Adacom printers
Upgraded production change managements systems
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Developed trouble shooting management system to reduce down time by speeding up
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resolution turn-around-time
Extensive VPS BAL exits enhancement to facilitate seamless migration off ancient ADACOM
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printers to IP printers by systematically converting ADACOM commands to PCL.
Ongoing Level 3 Network support diagnosing VTAM and TCP/IP related problems.
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Extensive REXX coding to intelligently scan SYSLOG, SMF, and Mailbox to identify active
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BTAM resources used by RJE/NJE, batch jobs, and Connect Mailbox.
Ongoing configuration changes and troubleshooting TCP/IP, VTAM, NCP, Netview, Connect
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mailbox, Connect Direct, and VPS. Created various PCL fonts for unique report requirements.
Accomplished 50% reduction of VPS printer definitions by writing code that automatically
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identifies printers not active to VTAM and VPS.
Successfully implemented near edge-to-edge printing on HP printers available only with IBM
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printers using PSF.
Developed an interactive VPS navigator using REXX under Netview to assist with the daily
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management and operations of VPS and DRS printers.
9/00 – 3/01 Goldman Sachs - NY
Senior VTAM, and TCP/IP Consultant
Key Accomplishments
• Successful migration off obsolete 3172 to OSA express Gbe
Implemented VIPA to dynamically reroute IP traffic over a secondary OSA. Customized
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OMPROUTE to route external clients over different gateways due to firewall issue.
Evaluating web TN3270 server that resides on host, and provides TN3270 clients as a JAVA applet.
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Vendor products included HOD, OC WebPro, Walldata, and Attachmate.
Planning APPN implementation in order to increase availability for CICS applications utilizing
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generic resources in a parallel sysplex environment.
Rewrite interactive ISPF production turnover system for VTAM maintenance.
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5/98 – 9/00 Sony Electronics Corporation - NJ
Senior VTAM, and TCP/IP Consultant
Key Accomplishments
• Y2K quality assurance certification of entire z/OS environment and components
• Developed extensive REXX system that places network monitoring in auto pilot.
Successful migration to OS/390 2.5 & 2.8 VTAM, TCP/IP, Telnet, FTP, SMTP, LPDSERV,
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OMPROUTE, SNALINK, and syslogd daemons on 7 LPARs. Project included configuring
BPXPRMxx, OE /etc HFS parameter files, BPX RACF Facility profiles, and extensive testing to
stabilize product.
Ongoing level 3 network support resolving FTP failures, connectivity outages, LOGMODE
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incompatibilities, and performance issues utilizing client/server tracing, OE component, packet
tracing, and VTAM buffer trace analysis.
Optimized VTAM and NCP performance such as VR window size, TG thresholds, and NCP buffer
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tuning utilizing Ntunemon and Netview.
11/96 - 5/98 Novartis Pharmaceutical Corporation - NJ
Senior VTAM, MVS and CICS Systems Programmer, and Consultant
Key Accomplishments
Successful corporate Ciba-Geigy/Sanodz data center merger/consolidation, involving
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multiple domestic and international hosts supporting thousands of users.
Successfully implemented TCP/IP, Telnet, FTP and TN3270 on 3 hosts via CISCO CIP.
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Implemented from scratch a new MVS test LPAR.
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MVS system tuning modifying IEAICS/IEAIPS PARMLIB members based on RMF and MXG
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statistics.
Implemented SMP/E maintenance to VTAM/NCP, MVS, and vendor products.
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Diagnosed/implemented and customized JES2 exit 13 to complete MVS/ESA 522 upgrade.
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Y2K preparation/maintenance and verification testing for VTAM, TCP/IP, and NCP products.
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Ongoing HCD/MVSCP IOCP hardware configuration changes on a 3090 with three LPARs.
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Installed/upgraded SAS, SYNCSORT, TPX, CL/SUPERSESSION, and NETSPY.
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2/96 - 11/96 Interactive Solutions, Inc. - Hasbrouck Heights, NJ
Senior MVS and CICS Systems Programmer, and Consultant
Key Accomplishments
• Debugged and enhanced REPLAY - a CICS application development tool that traps
3270 screen images for future replay, screen comparisons, and code debugging
Successfully upgraded multiple CICS 212 regions to CICS 410 at client site.
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Installed/implemented COMET to facilitate the execution of old macro-level programs in
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a CICS 410 environment without any program changes.
Ongoing customization and SMP/E maintenance of MVS/ESA, VTAM, and CICS/ESA.
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Installed and implemented DB2 for batch and CICS environments.
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Authored TSO Command Processor to provide real-time host data access to PC clients.
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Implemented SMF/RMF recording, and performance statistics.
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Analyzed client’s CICS and batch performance problems recommending tuning adjustments to
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increase performance and throughput.
Implemented RACF security.
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Implemented DFDSS tape backups for disaster recovery.
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Successfully converted an OS/VS COBOL CICS application to COBOL II.
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8/94 - 1/96 Verimation Incorporated - Woodcliff Lake, NJ
Senior Technical Support Representative, Software Developer, and Consultant
Designed/coded BAL and COBOL exits/programs, and ZAPs to enhance and customize product to
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meet customer‘s unique requirements.
Advised/analyzed MVS, VTAM, and CICS SYSGEN parameters for correct installation and
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problem solving.
Analyzed various VTAM buffer traces to solve communication problems. Established software
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laboratory replicating customer's environment to reproduce problems and test solutions.
Designed/coded complete work flow electronic forms initiated as an Email form by the requester to
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be forwarded to multiple levels of authority and information gathering, which is ultimately
processed as a CICS transaction, connected via APPC.
Ongoing 3rd level technical support resolving complex EMAIL implementation and connectivity
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issues such as: SNADS, APPC, X.400, INTERNET, SMTP, TCP/IP, CC-MAIL, MS-MAIL,
ADVANTIS, PROFS, Fax, and Telex.
11/93 - 8/94 Bank Hapoalim - NY, NY
Senior Systems Programmer
Installed, maintained, and configured VSE, CICS and VTAM.
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Established SNI connection to the Federal Reserve Bank.
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Implemented CICS-Autoinstall for multiple CICS regions.
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10/84 - 1/93 Skandia America Reinsurance - NY, NY
Senior Systems Programme
Key Accomplishments
• Acquired/implemented 4381 processor from 3rd party used market, thereby saving
company thousands of dollars for not having to purchase directly from IBM
• Successful migration from VSE to the MVS/ESA operating systems
Planned/ installed MVS/ESA and JES2 releases 3.1.3 and IPO 4.2.
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Customized PARMLIB/PROCLIB members to define APF, LPA, Sub System and other MVS and
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JES2 parameters. Implemented MVS, MVSCP, and IOCP SYSGEN.
Instituted alternate SMP/E SYSRES Target Libraries for quick maintenance backout.
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Modified/coded SMP/E MCS statements for the purpose of packaging vendor and internal
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PTF/ZAPS for improved integrity and maintenance history.
Utilized diagnostic tools such as Dumps, GTFTraces, and OMEGAMON .
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Utilized RMF & OMEGAMON/MVS to provide barometers identifying bottlenecks.
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Modified ICS/IPS PARMLIB members to prioritize and increase throughput.
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Designed and implemented RACF security to protect MVS resources. Coded departmental security
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schemes to provide different levels of security.
Build and maintained ICF master and user catalogs. Utilized VSAM utilities to alter VSAM file
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attributes for improved performance.
Designed BAL exits and utilities, and online interactive program developing aids.
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Implemented JARS to report accounting and charge-back of MVS systems resources.
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Evaluated, installed and maintained various releases of VTAM, NCP, SSP, NETVIEW and NPSI in
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MVS/ESA, VM/XA and VSE environments.
Designed/implemented local network and cable layout consisting of numerous 3x74
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controllers/multiplexers, supporting 300 terminals.
Build international and domestic network interconnecting numerous transatlantic and local SNI
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networks and hosts.
Implemented standby X.25 hosttohost link to automatically kick in during a failure.
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Coded NETVIEW message trapping logic to implement network automation.
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Designed and implemented AS/400 network establishing communications to remote branches, and
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APPC links to remote AS/400 and mainframe.
Configured/ upgraded 3720, calculated LIC weight and line speed capacities.
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Evaluated/implemented TPX, NETSPY, and FTP.
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Coded VTAM startup, configuration, applications, NCP and SNA MajorNode definitions.
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Installed/customized various releases of CICS.
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Evaluated/ installed essential software products such as COBOL II, SAR/EXPRESS,TMON/CICS,
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INTERTEST, JARS, LIBRARIAN, CA11, JCLCHECK, FOCUS.
Designed disaster recovery plan to assure full recovery from any catastrophic outage.
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Installed VM/XA enabling to run VSE and MVS/ESA concurrently.
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9/82 - 10/84 Federal Home Loan Bank - NY, NY
Systems Programmer
Installed/maintained VSE, VM/SP, CMS, CICS, VOLLIE, LIBRARIAN and LOOK.
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Designed/coded CICS transactions to emulate the 3780/2780 protocol.
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5/81 - 9/82 Abraham & Strauss - Brooklyn, NY
Applications Programmer
Designed/coded new BAL and COBOL programs for various applications.
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HARDWARE: IBM Mainframe, 3990, RAMAC, 3480, 3745-900, 3x74, 3172, OSA, AS/400, CISCO 7507,
Network Cabling, Modems, CSU/DSU, Multiplexers, Digital/T1 circuits
SOFTWARE: z/OS, MF TCP/IP, USS, VTAM, NCP, CICS/ESA, TSO/ISPF, SMP/E, JES2, HCD, RACF,
Ntunemon, NPSI, SNI, NETVIEW, TPX, CL/SUPERSESSION, NETSPY, VPS/IP,
OMEGAMON/MVS, VM/XA, CMS, VSE, BAL, COBOL, DB2, SQL, REXX, DFDSS, RMF,
VPS, CA-1, SAS, CA-View, TMON/CICS, Comet, FTP, HCF, Connect-Mailbox,
Connect-Direct(NDM), OC Gateways, DOS, WINDOWS, Attachmate/extra, HOD, EHLLAPI,
MS Word, Excel,Outlook, Visio, WordPress, WordPress/Plugins, HTML, SQL.
EDUCATION:
10/80 - 4/81 Grumman Data Systems Institute - Woodbury, NY
10/76 - 4/80 Institute For Advanced Studies - Lakewood, NJ