# IULIIA PTUKHINA - Database Engineer
Source: https://hello.cv/juliaptukhina
Warsaw

## Links
- LinkedIn | https://linkedin.com/in/iuliia-ptukhina

## About
Highly experienced Database Engineer with over 5 years in designing, developing, and administering robust ETL processes for complex data warehouses. A strong IT professional with a solid mathematical background, adept at optimizing data pipelines, enhancing data quality, and driving significant improvements in data accessibility and performance.

## Work
### Database Engineer | NITKA
https://
Spearheading critical data migration and ETL optimization initiatives to enhance data infrastructure and performance.
- Led the migration of existing ETL processes from Teradata to Databricks, ensuring seamless data transition and system compatibility.
- Developed and optimized complex ETL processes, significantly enhancing data flow efficiency and reliability.
- Achieved substantial reductions in query numbers and data waiting times, resulting in decreased data handling costs and reduced operational complexity.
- Conducted qualitative optimization of data content, minimizing errors and anomalies to improve data accuracy and integrity.
- Implemented efficient data processing methods, including filtering, formatting, and delivery, to significantly enhance data accessibility and utilization for stakeholders.
### Frontend Developer, Creative Programmer | EXADEL
https://
Contributed to data orchestration and database management, focusing on comprehensive data schema implementation and performance optimization.
- Utilized Python and Apache Airflow as a data orchestrator, and Microsoft SQL as the primary database, for complex data projects.
- Implemented a comprehensive data schema covering all stages of data acquisition, extraction, cleansing, transformation, integration, loading, and replication, enabling a client's store network to optimize goods arrangement.
- Developed efficient data refinement and delivery processes, significantly improving client access to sales statistics and enhancing usability for faster insights.
- Engineered robust SQL code, stored procedures, and triggers that substantially contributed to the high performance and data integrity of the project.
### PL/SQL Developer | JSC ER-TELEKOM HOLDING
https://
Developed and maintained PL/SQL solutions to support data operations.
- Designed and implemented PL/SQL procedures and functions to manage database operations and data flow.
### ETL Developer | TINKOFF BANK
https://
Focused on ETL development for financial data processing.
- Developed and maintained ETL processes to extract, transform, and load critical financial data.
### PL/SQL Developer | IIS-CONSULTING
https://
Provided PL/SQL development and support for various client projects.
- Contributed to the development and optimization of PL/SQL solutions for diverse client requirements.

## Education
### Institute of Mathematics, Mechanics and Computer Science named after of I.I.Vorovich of Southern Federal University | Applied Mathematics and Computer Science
https://

## Languages
- Russian | Native
- English | Proficient

## Skills
### Data Platforms
Expert
- DataBricks
- Greenplum
- Oracle
- MS SQL
### Programming Languages
Proficient
- Python
- PL/SQL
- SQL
### ETL & Data Processing
Expert
- ETL
- PySpark
- Apache Airflow
- SAS DIS
- Data Quality
### DevOps & Version Control
Competent
- Docker
- Git
- Jenkins

## Source
Read this profile on Hello.cv: https://hello.cv/juliaptukhina
Create your free profile at https://hello.cv