Daniel Skrzymowski

Cobol | PL 1 | RPG | IBM Mainframe Senior Developer | Consultant
Warszawa, mazowieckie

Umiejętności

CL Programming COBOL IBM iSeries JCL Kohana Framework LAMP Linux PHP PL / 1 REXX RPG C/C++ Programowanie Java Mainframe (z/OS) bitcoin RPG ILE Word Press

Języki

rosyjski
dobry

Doświadczenie zawodowe

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Senion PL/1 mainframe develper
Adularia Solutions
- PL/1, JCL, CICS development in mainframe core banking system
- Optimization of batch processing
- Bug fixing
- Root Cause Analysis
- Performance analysis and fixes
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freelancer (owner)
DS Consulting (freelancer)
programing, focused on financial/telco sectors (banking, insurances), analysys, technical design (COBOL, JAVA, RPG, PHP, SQL, C/C++/C#)

experienced mainly in
Mainframe (zSeries)
Mindrage (iSeries)
OPEN VMS
HP-UX (microfocus cobol)

DB2, SYBASE, MySQL

web aplications (.NET, J2EE, PHP)
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Senior IT Consultant / PL 1 / mainframe developer
OP Pohjlola (CGI consultant)
- maintenance and development of existing insurance core system based on IBM zSeries mainframe.
- involved in knowledge transfer proces and creation of offshore service center in Warsaw.
- implement changes in existing systems using CA GEN, J2EE, Pl/1, Cobol, JCL and SQL.
- production maintenance and bug fixing.
The Royal Bank of Scotland (RBS)
IT Specjalist
• Analyze of core business applications
• Creating tools for day to day maintenance (CL, COBOL, SQL)
• Improve applications (DWH)
• Creating reports for users (SQL, QUERY)
• Provide support regarding iSeries
Sii sp. z o.o.
Software Engineer/Designer (DnB Nord project in Warsaw)
• Audit of existing backend system based on MF COBOL and JAVA/JSF.
• Analyze possibility of performance gain of EOD process.
• Create proof of concept recomended changes.
• Prepare final recomendations about further improvements in existing systems.
• Find bottle neck in whole EOD process.
• Create documentation of existing business process.
Sii sp. z o.o.
Software Engineer (Polkomtel S.A project)
• Improvement and development of existing application based on mainframe VAX platform (UNIX,COBOL,SQL,ORACLE,SYBASE, PERL,JAVA/J2EE)
• Involved in backend billing system (VAX).
• Advice and troubleshooting.
• Make a documentation and solutions designs based on client request.
• Improve performance.
Santander Consumer Bank S.A.
IT Consultant
• Improvement and development of existing insurance/credit application based on AS/400(COBOL/CL,SQL,DB2,SQL, C) and .NET.
• Involved in backend (AS/400) and frontend (.NET
• Advice and troubleshooting.
• Make a documentation and solutions designs based on client request.
• Improve performance
• Technical design
• Technical analysys
• Cooperate with test and buisness analysys teams
7N Sp. z o. o.
IT Consultant (Silkeborg Data project office in Warsaw)
• Improvement and development of existing system based on OS390 mainframe.
• Involved in main projects related mainframe (COBOL/JCL,SQL,DB2,MQ,EASYTRIEVE,REXX):
• SKAT (Danish tax office interface – electronic tax reporting interface has been developed and build) – Silkeborg Data developed it as first company in Denmark.
• Test tool application (part of project for testing old time reporting module). Also committed in developing changes (reengineering of this module).
• REFUSION project (refunds for employee) – software which generates lists of refunds for users.
• Tasks regarding redevelopment existing CICS 3270 transactions.
• Advice and troubleshooting.
• Make a documentation and solutions designs based on client request.
Asseco Poland
Programmer/Designer
• Main projects related mainframe (COBOL/JCL,SQL,DB2,REXX,CONTROL-M):

• Developed core financial applications for huge data conversion between old and new (centralized) system. PKO BP the greatest bank in Poland received new centralized client database and banking system based completely on IBM mainframe (OS390) ALNOVA.
• Wrote software for bank checks module conversion and done application for client database conversion (about 15 000 000 clients has been successfully moved into new ALNOVA system).
• Done after conversion software which generates comparing reports. Those reports presenting key values and differences between data in both systems.

• Analyze client request documentation and prepare necessary documentation and other software based on it.
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Network administrator/Computer scientist
Military Center of Link (Orzysz)
• Network devices administration,
• Servers administration (Linux, Unix, Windows NT),
• Oversight and configuration of network devices,
• Supervise use of computers,
• Provide assistance to users.
• Administration telecommunication, and LAN WAN infrastructure devices.
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Network administrator
FHU Dag-Pol
• Design structure and administration of LAN networks,
• Computers attendance of companies,
• Service of computers and computer devices,
• Administration of local UNIX/FreeBSD systems.

Edukacja

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Master of computer science, magisterskie
Technical University, Białystok

Specjalizacje

IT - Administracja
Administrowanie systemami

Grupy

Chiny Biznes 中波商务
Chiny Biznes 中波商务
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WEB 2.0
WEB 2.0
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