Professional Summary
ISTQB-certified Data Quality Engineer with 11+ years of hands-on experience
making enterprise data trustworthy across finance, banking, tax and analytics.
I design data-quality frameworks end to end — from profiling and validation to
automated dbt tests, data contracts and CI/CD quality gates on modern stacks
such as Snowflake, AWS and PostgreSQL. Working shift-left, I catch schema drift
and metric regressions before they reach production and turn ambiguous business
logic into enforceable, monitored rules. Having led QA across the full delivery
lifecycle in both Agile and Waterfall settings, I partner closely with data
engineering, analytics and product teams to raise the reliability of the data
behind reporting, BI and day-to-day decision-making.
Core Skills
- DBMS & ETL
- Snowflake, MS SQL Server, SAP HANA, Oracle, dbt (+ dbt tests), PostgreSQL,
AWS (Airflow DAG, Step Functions, Lambda, Glue, S3, Redshift, CloudWatch), Hue, BODS, Azure
- Analysis & BI
- Sigma Computing, Tableau, QlikView, WEBI, Workday Adaptive Planning, Excel, Google Sheets
- API & Automation
- Postman, Fiddler, PyCharm, Python / PySpark, Java / Selenium, DevTools
- Project & Test Mgmt
- Azure DevOps, Jira, TFS, TestRail, Confluence, Figma — Agile, Scrum, Kanban, SAFe, Waterfall
Professional Experience
Tive — Senior Data Quality Engineer
Dec 2025 – Present
Cloud-based IoT data platform — real-time, end-to-end shipment visibility and analytics.
- Designed and implemented a data quality framework for analytics models in Snowflake (accuracy, consistency, reliability of shipment metrics).
- Defined scalable data reliability standards: freshness, schema consistency, metric accuracy, cross-system reconciliation.
- Built automated SQL validation layers for complex KPI logic feeding Sigma Computing dashboards.
- Established CI/CD-enforced dbt validation gates to prevent schema drift and ensure safe production deployments.
- Implemented anomaly detection and monitoring to surface metric regressions and data-integrity risks early; led root-cause analysis with Data Engineering, Product, and Analytics.
Tools: Snowflake, dbt, AWS, Git, Sigma Computing, Jira, Confluence, TestRail
Q4 Inc — Senior Data Quality Engineer
Aug 2023 – Nov 2025
Investor-relations platform; led data quality in the Data department (foundation for Analytics and CRM products).
- Launched data quality and testing initiatives with a strong shift-left focus.
- Developed data quality frameworks — metrics, standards, and processes; ran thorough data profiling to find and fix issues.
- Built and maintained dbt tests and data contracts (freshness, completeness, validity) with CI/CD-gated deployments.
- Used advanced SQL for querying, manipulation, and analysis; partnered with Analytics and CRM teams on data expectations.
Tools: Snowflake, PostgreSQL, dbt, AWS (Airflow DAG, Glue, CloudWatch), Git, TestRail, Jira, Confluence
Royal Bank of Canada — Senior Quality Engineer
Feb 2023 – Jul 2023
ETL product processing and analyzing large volumes of daily transactions.
- Created test plans, cases, and scripts from requirements and business user stories; raised and triaged defects.
- Performed black-box testing via MS SQL backend; wrote SQL queries for data validation.
- Conducted ETL testing via DataStage jobs across data layers; validated transformations against business rules.
- Built and maintained regression suites; collaborated with cross-functional and offshore teams.
Tools: MS SQL, DataStage, Stonebranch, Jira, Confluence, qTest, GitHub
Deloitte USA / Infopulse — Quality Assurance Lead
Jul 2017 – Feb 2023
Data & Analytics, ETL migration, and BI projects on SAP HANA, Oracle→AWS, and WEBI.
- Reviewed requirements and tech docs for estimation, testability, and verification; built system test plans and scripts.
- Functional testing of data transformation and metric calculation; tested SAP HANA Calc Views as enriched data sources.
- Functional and integration testing via AWS (Step Functions, Lambda, Glue, S3, Redshift, CloudWatch); SQL validation.
- Security testing (role access) via Postman; led QA activities — estimation, task assignment, test-case review, reporting, UAT/SIT.
Tools: SAP HANA, MS SQL Server, Oracle, AWS, Postman, PyCharm, Python/PySpark, BODS, WEBI, Tableau, QlikView
Scorto LTD — Senior QA Analyst
Aug 2016 – Jun 2017
Credit-scoring software and decision-management system for international banks.
- Functional, integration, regression, retesting, and UI testing; subject-matter expertise during development.
- Created checklists, test plans, and traceability matrices; API testing via Postman and black-box testing via MS SQL.
- Built and maintained regression scenarios for a custom automation testing tool.
Tools: MS SQL, custom autotest framework, Web UI
Education & Certifications
Master of Business Management — Simon Kuznets Kharkiv National University of Economics, Ukraine
ISTQB Foundation Level Certification (#10-CTFL-19687-AT)
Rapid Software Testing Explored — Michael Bolton