Vadim Tenishev

* Built analytics DQ platform for 11 countries (storage+ingestion); 600+ timely reports (acc/cons/comp/time/uniq/valid). * ~€XM/month savings via advanced SQL DQ reports enabling fast fixes. * Developed and maintained Tableau KPI dashboards. * SQL/pipeline optimization (query plans/stats, refactoring, indexing, isolation, etc.). * Cut dev time 60% via cross-team collaboration + training/mentoring 10.

* Set up and managed data analysis practices enabling data-driven decisions. * Built and documented the analytics foundation: ClickHouse data warehouse, ingestion pipelines, and BI architecture (Power BI Report Server). * Delivered actionable insights using SQL and Python. * Created the first 30+ Power BI dashboards for cross-team decision-making. * Optimized SQL queries to resolve bottlenecks under growing data volumes.

* Built and maintained Tableau dashboards tracking key outcomes across customers/products/accounts/assets. * Collected stakeholder requirements and converted them into development specs. * Created automated data quality tests in Informatica to speed up remediation and reach 100% data quality. * Queried and analyzed large datasets with SQL for internal reporting. * Boosted report compilation 60x by migrating legacy SAS to Teradata.

* Led a data quality project covering data from 23 bank branches nationwide to ensure the accuracy, completeness, consistency, and correctness of data warehouse data used for business reporting. * Developed automated SQL-based data quality checks to enable timely detection and resolution of data issues. * Troubleshot SQL query performance issues. * Collaborated closely with business stakeholders and data engineers to identify new approaches, improve data quality, and mitigate the risk of future data issues.

* Led a financial reporting automation project using Oracle and SQL, reducing report compilation time by 40%. * As part of the project, mined, and analyzed raw data to compile financial reports for the national central bank, providing insights into current financial performance and trends. * Owned and maintained internal Tableau and Excel reports, keeping management updated on current financial results.