Solution Architect

• May 2021 - Present

Software developer

• Oct 2020 - Apr 2021

Data Engineer

• Feb 2020 - Sep 2020

Senior DWH Berater

• May 2019 - Dec 2019

Independent DWH Consultant

• Mar 2012 - Mar 2018

• Co-author of the “Inception Method” for historical tables’ delta load that identifies impacted target rows and is independent on the amount of the source tables (already implemented for ~40 source tables).• Created and implemented deployment framework to automate system alteration, new approach to allow emulating transaction while executing DDL, preparing rollback file, and executing supplementary statements that were previously handled by DBA team.• Designed and developed in-database application that enables dynamic execution of the new processes and removes bottleneck of their installation.• Delivered in-database framework that automatically compares tables based on the input metadata.• Created client-side tool for storage optimization (decrease of table size up to 50%).

Consultant

• Mar 2011 - Apr 2014

Data mining specialist

• Jan 2010 - Feb 2011

- Maintenance and development of analytical models, performing data analysis- Performing model quality control, report designing- Optimization of Data Warehouse processes- Creation and automation of model refresh, scoring processes- List arrangement for target campaigns; took part in the development of automated campaign evaluation tool for business users

Data Warehouse developer/ analyst

• Jul 2008 - Jan 2010

- Collection and analysis of business requirements, translation it into technical language, specifications development- Developing ETL and data marts- Deploying implemented modules into production system- Writing technical documentation- Supporting corporate Data Warehouse (new product classification, rate plan arrangement)- Consulting clients and contractors about data available in the Data Warehouse- Designing reports and Business Objects interfaces

Oracle/ Delphi developer

• Sep 2007 - Jul 2008

- Developing electronic workflow system: mail client, reference table export and import- Maintenance and improvement of existing modules- Developing the system of patches installation- Report design and optimization- Consulting clients about system functionality- Installing the system of electronic workflow to a customer’s office - Developing electronic workflow system: mail client, reference table export and import- Maintenance and improvement of existing modules- Developing the system of patches installation- Report design and optimization- Consulting clients about system functionality- Installing the system of electronic workflow to a customer’s office