About me
Hi there — I’m Istvan Rozsa, a data enthusiast based in Prague with a passion for turning raw data into meaningful insights. I specialize in building smart, scalable data solutions — from ETL pipelines and data warehouses to business intelligence systems that actually make sense.
With every project, my goal is to bring clarity to chaos, structure to scattered data, and help teams make better decisions, faster.
Whether you're a startup or a global company, if you're looking to get more out of your data, you’re in the right place.
Feel free to explore my work — and if it clicks, let’s chat over a virtual coffee. ☕
Currently open to new projects!
Education
(That’s the current lineup — but I believe in lifelong learning, so this list is far from finished. 🤓)
🇭🇺 University of Debrecen
Master’s Degree in Computer Science
Jan 2022 – Jan 2025
Focused on modern data architecture and large-scale processing.
Key Skills: Computer Science · Data Warehousing · Databases · ETL · Apache Spark
🇨🇿 Czech Technical University in Prague (Erasmus+ Program)
Master’s Studies in Business Informatics
Feb 2024 – Jul 2024
Specialized in Web & Text Mining, Business Economics, and Recommender Systems.
Key Skills: Data Mining · Text Mining · Business Planning · Social Network Analysis · Recommender Systems
🇦🇹 Technische Universität Wien (Erasmus+ Program)
Master’s Studies in Data Science
Feb 2023 – Jul 2023
Focus on information visualization, data stewardship, and E-marketing.
Key Skills: Data Warehousing · Databases · ETL
🇭🇺 Corvinus University of Budapest
Bachelor’s Degree in Business Informatics
2017 – 2021
Thesis: Building Recalculation Models with Business Intelligence
Key Skills: Communication · Databases
🇭🇺 RUANDER Oktatási Kft
Vocational Education in Software Development
2018 – 2019
Hands-on training with databases and programming fundamentals.
Key Skill: Databases
Work Experience
Work and positions I've held through the years — all part of the journey.
Dyntell Software
BI Product Manager
Feb 2025 – Present
Leading the design and delivery of business intelligence features and data-driven product strategies.
Dyntell Software
Business Intelligence Consultant
Jun 2021 – Present · 4 yrs+
Helping clients build smart data infrastructure, automate workflows, and visualize insights across industries.
Sincro
Business Intelligence Consultant
Jan 2019 – Jul 2021
Delivered tailored analytical reports, automated ETL processes, and data insights for decision support.
Sincro
Finance & Accounting Assistant
Mar 2017 – Jan 2019
Supported finance operations with basic data analysis and accounting processes.
My Favorite Cafés
Because good data needs great coffee. ☕
When home or the office feels a bit too plain, I escape to coffee spots with good vibes and better Wi-Fi — and sometimes, I share my favorites here.
My Blog
Welcome to a space where data meets daily life — from designing smart systems to finding the perfect Espresso. Here, I share what I’m building, learning, and discovering along the way.
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Thoughts, tips, and real-world challenges from automating data workflows — efficiently and cleanly.
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Deep dives into building scalable, organized data backbones that power real decision-making.
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Exploring the art and science of turning raw data into dashboards that actually help.
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A behind-the-scenes look at the experiments, tools, and passion projects I build in my free time.
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Because great ideas often start with a hobby—or a really good cup of coffee.