David Hershkowitz

One Jodi Court

Monsey, NY ****2

845-***-****-Home, 845-***-****-Cell

acc6n6@r.postjobfree.com

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

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