Viktor Gregor
Senior Research Engineer at Kempelen Institute of Intelligent Technologies
Bratislava, Region of Bratislava, Slovakia
Summary
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Senior🎓
Top SchoolViktor Gregor is a Senior Research Engineer with 11 years of experience applying advanced analytics and machine learning to drive product and revenue impact across gaming, fintech, and research organizations. He built foundational ML capabilities at Pixel Federation and led data science at SuperScale, delivering production systems from LTV prediction and recommendation engines to an LLM-powered insight engine and SKAN attribution for privacy-preserving measurement. Comfortable bridging research and product, he introduced Bayesian A/B testing practices, causal simulation for spend optimization, and robust time-series and forecasting pipelines that informed strategic decisions. His academic background in stochastics and financial mathematics underpins a rigorous, simulation-first approach to problems, while a history as a ropes-course instructor hints at practical leadership and composure under pressure. Now based in Bratislava, Viktor combines deep technical craft with clear communication to help teams adopt reproducible, business-focused ML.
11 years of coding experience
9 years of employment as a software developer
Master’s Degree Stochastics and Financial Mathematics, Master’s Degree Stochastics and Financial Mathematics at Vrije Universiteit Amsterdam (VU Amsterdam)Master’s Degree Economic and Financial Mathematics, Master’s Degree Economic and Financial Mathematics at Univerzita Komenského v BratislaveErasmus study exchange Economic and Financial Mathematics, Erasmus study exchange Economic and Financial Mathematics at Norwegian School of Economics (NHH)
English, Slovak, Czech, French
Stackoverflow
1reputation
257reached
0answers
1question
Github Skills (6)
bayesian-inference7
html6
nodejs6
javascript6
theory6
game-theory6
Programming languages (2)
Github contributions (5)
Vidogreg/bayes-ab-testing
May 2018 - Oct 2019
Calculators for evaluating A/B tests using Bayesian inference
Contributions:13 commits, 12 pushes, 1 branch in 1 year 5 months
bayesian-inference
Vidogreg/payer_model
Dec 2018 - Mar 2019
Contributions:30 pushes in 3 months
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