Czesław Berger

Experience

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  LGBS Software

  Jun 2007 - Oct 2015

  Oracle PL/SQL Developer

  Participation in a huge-size system based on Oracle Enterprise (8*(3 instances, 1k+ tables, 100+ permanent users)) for Polish National Health Fund through design, short-term and long-term development, unit testing, performance tuning, code maintenance and bug tracking and fixing. Also responsible for providing critical bug fixes regarding intermodular defects. Involved in several crucial areas of system:· Multi modular data replication and synchronisation mechanism between 3 instanced Oracle database,· Medical personnel management (tracking changes, merging duplicates, synchronisation),· Internal Export/Import of fiscal documents mechanism (with migration from legacy both technology and data)· Development of many supporting packages, migration procedures and multi-tier resource consuming reports Show less

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  Sollers Consulting

  Nov 2015 - Jul 2018

  IT Specialist

  Deployment and customization of Fadata INSIS 10.4 for world-wide insurance company. Design and implementation of multiple system extensions in area of finance, accounting, general ledger, commission processing.Migration of valuable data from old system (running up to migration date) to new one.Design and implementation of supporting tools/mechanisms due to GDPR requirements (anonymization, split-person mechanism).Several analysis and implementation tasks for commission calculation system. Show less

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  ITSurance Group Sp. z o. o.

  Aug 2018 - now

  Oracle PL/SQL Developer