Oleksii

OLEKSII LYTOVCHENKO
Data Quality Engineer specializing in automated data validation, ETL testing, and BI
quality assurance. Experienced in developing data quality frameworks, validating
complex source-to-target transformations, and ensuring the accuracy and security of
Power BI reports, including RLS. Proficient in Python, SQL, and Azure data
technologies, with a focus on scalable validation solutions and reliable reporting.

PROFESSIONAL EXPERIENCE
EPAM New Product Creation. Developed a Data Quality Testing
Data Quality Engineer Framework to validate consistency, completeness, validity
Oct 2024 – Present and uniqueness at integration layer. Implemented
CONTACT
automated source-to-target comparison mechanisms
using Python and SQL to quickly identify data discrepancies
☎[відкрити контакти](див. вище в блоці «контактна інформація») (Telegram, Viber)
based on principle of cell-to-cell comparison. Performed
✉[відкрити контакти](див. вище в блоці «контактна інформація»)
data profiling to identify gaps and inconsistencies.
🌐 [відкрити контакти](див. вище в блоці «контактна інформація») Conducted root-cause analysis of data anomalies and
lytovchenko-ab23a4211/
discrepancies across ETL pipelines and reports. Conducted
functional testing on transformation logic based on
EDUCATION requirements and Power BI assets, including RLS
validation.
Computer Science, Bachelor and
Master degrees
EPAM Data Migration. Executed end-to-end ETL testing during
KHNUE
2019-2025 Data Quality Engineer migrations from SAP HANA to Databricks, while identifying
Apr 2024 – Sep 2024 ETL performance bottlenecks and data discrepancies.
Verified data and UI elements on the report level.
SKILLS

UvoCorp Engaged in direct communication with global clients across
Data Profiling Software Engineer the US and Europe to gather requirements and deliver
Mar 2023 – Sep 2023
Data Analisys And Quality technical solutions. Developed simple software and
AI Engineering interactive applications utilizing advanced design patterns
and modern frameworks.
BI Testing
ETL/ELT Testing
Test Automation Approaches CERTIFICATIONS
Claude Certification – Azure Data Engineer - Associate AWS Certified Data Engineer –
Foundations (CCA-F) Certification (DP-203) Associate (DEA-C01)
LANGUAGES May 2026 September 2024 November 2024

US English — Upper-Intermediate
SKILLS
UA Ukrainian — Native
Data Quality & Testing: Data Profiling, ETL Testing, Data Reconciliation, Root-Cause
Analysis, Power BI Testing, Row-Level Security (RLS)
Programming & Querying: Python, SQL
AI Assistance: Claude, Genie AI — testing purposes, requirements and data analysis
Data & BI Platforms: Azure Databricks, Azure Data Factory, Power BI
Cloud & Development Tools: Azure Services, AWS, Git
Additional Technologies: Docker, Jenkins, Bash, C, Java, Spring, JavaScript,
HTML/CSS, React, Figma