Reporting ("end to end" solution):1) Analyse of business needs.2) Develope ETL using Microsoft SISS.3) Implement and optimize solutions on databases Microsoft SQL Server 2017(earlier 2014) and Oracle Database 11g using T-SQL and PL/SQL. Practical knowlege about database partitions and indexes. Huge experience with SQL hints.4) Create reports in IBM Cognos (packages in IBM Framework; reports in IBM Analytics). 5) Maintenance BI solution(optimize ETL; optimize data model; take care about data quality in datamarts).Achivments:1) Turn off SAP BusinessObjects platform. Create ETL process on Microsoft SSIS. Create Cognos package. Migrate over 100 reports from SAP BusinessObjects to IBM Cognos. 2) Optimize main daily ETL process(near 50% faster).3) Initial load data to datawarehouse.4) Adjust ETL process after upgrade SQL Server 2014 to SQL Server 20175) Develope stored procedures to anomize data (implementation of GDPR/RODO).

I take responsibility of developing and maintaining system of marketing campaign based on:1) IBM Campaign 2) Oracle 11g3) TeradataI was IT architect of the projects in two projects (joining marekting campaign system; social network analysis).

Creating reports and analysis using SQL on Oracle and Teradata databases

Classes for extramural studies in Algebra and Mathematical Analysis: 1) Create own script with exercises using latex2) Classes with students3) Support role in exam organisation