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M
Marek Balucha

Marek Balucha

Senior Data & BI Engineer | AI Training & Evaluation

Slovakia flagPrešov, Slovakia
$25.00/hrEntry Level

Key Skills

Software

No software listed

Top Subject Matter

Data Analytics / Business Intelligence
Information Technology / Software
Machine Learning / Artificial Intelligence

Top Data Types

Computer Code ProgrammingComputer Code Programming
TextText
DocumentDocument

Top Task Types

No task types listed

Freelancer Overview

I am a Data/BI Engineer with 9+ years of experience designing, building, and maintaining data pipelines and analytics solutions in cloud environments. I have worked extensively with SQL, Python and modern data stacks (dbt, Snowflake, Azure) to transform raw data into reliable, production‑grade datasets used for reporting and decision making. While I am new to formal AI training and data labeling roles, my core strengths are data quality, systematic evaluation, and clear documentation. I am comfortable working with complex schemas, validating edge cases, and analyzing model outputs or metrics to identify failure modes and potential improvements. I am looking to leverage my strong data background to contribute to high‑quality training data pipelines for AI and ML systems.

Entry LevelEnglishSlovak

Labeling Experience

No Data Labeling experience added

Marek B. hasn’t added any AI Training or Data Labeling experience to their OpenTrain profile yet.

Education

T

Technical University of Košice

Master of Science, Business Informatics

Master of Science
2007 - 2012

Work History

A

Accenture

Senior Software Engineer

Prešov
2023 - 2025
R

Rare Crew

Business Intelligence Developer / Team Lead

Prešov
2017 - 2023