Jozef Mihaliak
Data Engineer
Prague
Summary
A dynamic Data Engineer from Resulmatic, I leveraged SQL expertise and teamwork to enhance data quality, optimize performance, and mentor juniors, significantly boosting productivity. My contributions automated tasks and improved decision-making efficiency through user-friendly dashboards, showcasing my blend of technical acumen and collaborative skills.
Overview
2
2
years of professional experience
2
2
Certifications
2
2
Languages
Work History
Data Engineer
Resulmatic
11.2021 - 02.2024
- Enhanced data quality by performing thorough cleaning, validation, and transformation tasks.
- Fine-tuned query performance and optimized database structures for faster, more accurate data retrieval and reporting.
- Provided technical guidance and mentorship to junior team members, fostering a collaborative learning environment within the organization.
- Collaborated with system architects, design analysts and others to understand business and industry requirements.
- Increased efficiency of data-driven decision making by creating user-friendly dashboards that enable quick access to key metrics.
Education
High School Diploma -
Private High School
Poprad 04.2001 -
Skills
Data modeling
Data warehousing
SQL expertise
Big data processing
Performance tuning
Machine learning
SQL and databases
SQL programming
Data visualization
Python programming
Certification
Microsoft Certified: Azure Data Engineer Associate
Timeline
Microsoft Certified: Azure Data Engineer Associate
05-2022
GOPAS logo Moderní datový sklad a řešení pro analýzu velkých dat v Microsoft Azure
04-2022
Data Engineer
Resulmatic
11.2021 - 02.2024
High School Diploma -
Private High School
04.2001 -
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