Environment: OS/390, VSAM, ISPF , CICS, DB2, SQL. Middleware CICS and batch programs development and amendment (Cobol and Assembler programs development , testing and documenting,user testing and post implementation support ,JCL maintenance, involvement into Functional Specs design, Application and Component design ) . In respect of security solutions, implemented SHA-256 encoding for front-end users passwords.

Environment: OS/390, VSAM, ISPF , CICS, MQ Series, OPC RBS-First Active ATM/Laser cards integration project, RBS Core Systems project . Online CICS and batch programs development and amendment (Cobol, Assembler, EARL and REXX programs development , testing and documenting ,JCL maintenance, involvement into Functional Specs design, Application and Component design ) .

Environment: OS/390, VSAM, ISPF , CICS RBS-First Active ATM/Laser cards integration project, Retail Financial System(RFS) enhancements(mostly Loans and Bank Reconciliation). Online CICS and batch programs maintenance and amendment(Cobol ,Assembler, EARL and REXX programs development ,testing and documenting ,JCL maintenance) . SAP(Global Ledger)-RFS interface support.

Organization: International Business Alliance ,IBM Role: Mainframe Application Programmer Environment: OS/390,VSAM, ISPF, DB2 Working on IBM EMEA Euro project ,minor changes to different HR Access (client/server IBM internal product) and Cobol programs according to users requests,their testing and documenting. The maintenance and the enhancement of DB2 tables, views and queries for the HR Acccess Datawarehouse.

Organization: Research and Production Corporation of INTEGRAL Role: Leading programmer of the Tracking Systems Dpt Environment: VM/SP,CMS,OS 370,SCO Unix,Novell Netware,Windows NT/95/3.x Mainframe Operating System support and administration(RACF, JCL, ISPF, PL/1, Assembler) Enterprise Network development, support and administration(SCO UNIX,Nowell and Windows NT servers)using IPX and IP protocols. Making up economics oriented application programs. Picking-up and implementing operational systems and system software for Mainframe/370 ,IBM 4381 and PCs, its maintenance (actualization,copying). Code walkthrough and assistance in elimination of errors in programs under development and in application programs, as well as in tasks for their implementation and in initial data. Search and issuing recommendations and elimination of defects in equipments. Training of programmers and operators for work in new operational systems. Development of subroutines of operational system and of programs for improving program development process and program runnings. Development of programs for operating systems interoperability.

Organization: the machine-building Factory named after V.A. Degtyaryov, Kovrov,Russia Role: engineer-mathematician of the Tracking Systems Department Environment: IBM 370,OS 370,CICS Modification of input programs from remote user stations located in Personnel Dpt and Accounts Dpt and training of users. Studies and implementation of Bulgarian analogue of transaction control system CICS.