Denys Babenko Email & Phone Number

San Jose, California, United States

• Customer: Cloud computing platform.Project Role: Lead Data Engineer; Cloud solution engineer.Projects: Corporate BI, Marketing analytics.Responsibilities:
• Design and implementation of Declarative Data Warehouse framework. Implementation of declarative ETL approach helped significantly improve code quality and increase performance of Analytics team. Switch from Pentaho.
• Database performance tuning, performance and cost management. Declarative Data Warehouse framework collect performance and cost metrics for all operations performed during data loading and transformation. This metrics.
• Implementation of CI/CD practices. Declarative ETL approach helped to implement code review practices on a project and increased a speed of code delivery from development to production environments from week to couple.
• Designed ML model for prediction of technical support tickets counts. This model helped to optimize a workload of internal technical support team and to plan an optimal team headcount growth.
• Designed and implemented solution for automatic scan of team’s repositories and network folders for any hardcoded passwords and password files.

Kyiv, Ukraine

• Customer: Investment BankProject Role: Team lead; Lead DataBase developer.Projects: Risk&Analysis database development.Responsibilities:
• Transformed database development team to database development as a service provider. This transformation helped to save DB/ETL expertise and to provide DB and ETL development service for different customer projects.
• Designed DataBase architecture for AXIS_IFRS9 (international financial reporting system) and AXIS_SAPRec (SAP reconciliation) projects.
• Improved of database release processes. Implemented CI\CD practices (cross code review, early release build and deployment, integration testing etc) that reduced amount of issues on a project and significantly improved.
• Automated database deployment process. Migrated database code to SSDT solution that minimized time and effort required for database release build and deployment.
• Improved CREDS-to-QMART ETL process. Switch to SSIS increased speed of data loading and reduced CROSS databases dependencies.

Kyiv, Ukraine

• Customer: investment bankProject Role: Senior DataBase developer.Projects: CreditRiskIT database development.Responsibilities:
• Designed and implemented integration solution for data migration from Basel2 into Basel3 environments. Integration solution contains ETL components and PowerShell scripts for files structure transformations.
• Designed and implemented ETL solution for upstream and downstream data processing.
• Implemented ETL regression and DataBase performance testing for EAR and QMART projects. Implementation of regression and performance testing helped to minimize amount of project cross dependencies errors and helped to.
• Provided development support during system "Parallel run" and "GO-LIVE" stage.

Donetsk, Ukraine

• Customer: Ukrainian retail and corporate banks.Project roles: Team lead; Senior DB developer.Projects: Automatic Bank System "Scrooge-3", Scrooge AnalyticsResponsibilities:
• Development and support of Automatic Bank System (Scrooge3).
• Maintained a projects documentation.
• Designed and implemented integration solutions for data exchange between different banking systems and financial services.
• Implemented Factoring Management module.
• Designed and implemented Tax Accounting and Financial Analytics modules. Integrated tax reporting with a core of automatic bank system. Implemented functionality for automatic tax reports generation on a base of bank.

Technologies: C#, C++, GDI+Responsibilities: development of algoritms for human face detection in visual images, refactoring of existing code and portating it on.Net, development of software for image preparation for follow recognition.