- Full installation and configuration of BI Server from the scratch
- Data Warehouse Creation and Improvement: SQL Server 2008/2012/2016 (including Stored Procedures, Functions, Indexes and Triggers)
- ETL: SSIS from the different Sources (PostgreSQL, Google Analytics, Google Sheets, Webservices, 3rd party services)
- OLAP: SQL Server Analysis Services (Multi-Dimensional Cubes)
- Reports: Dynamic SQL Server Reporting Services, MS Power BI
- Interface function to other departments of the company (marketing, product, CRM, finance), supporting and optimizing them strategically and operationally
- Python: API to 3rd party services: Mandrill, BingAds, Adwords, BiPRO
- Developing of own internal REST API using Python and Flask
- Machine Learning projects (Python): Random Forest (BAGGING), XGBoost and CatBoost (Gradient Boosting), TensorFlow Estimators and Keras (Deep Neural Networks); Clustering, Classification and Regression; Saving of trained Model to the files and Loading for the next usage
- Automation of Manual Processes: Automatic Import of the various sets of invoices from the different companies and sources (in the totally different file formats, columns structures and categorical features vocabularies in different sources) into one consolidated DB table; Automatic Matching of Imported Invoices to the existing Customers and Contracts; Dynamic SQL Automation Scripts
- Database Administration: MS SQL Server 2008/2012/2016, PostgreSQL
- WEB tracking: Google Analytics, GTM (Google Tag Manager), creation of Java-Script Tags
- Knowledge and experience in the whole technical BI infrastructure
- Active Directory Management, security administration, PowerShell scripting for export of data
- Automatic and Manual Documentation
- Maintenance, third party code optimization