Pieter Marres
Business Owner at QuantSense
Utrecht, Netherlands
Summary
👤
Senior🎓
Top SchoolPieter Marres is a data-driven entrepreneur and certified actuary with 12+ years of experience building analytics-driven pricing, valuation and forecasting solutions for insurers, utilities and pension funds. As founder of QuantSense he migrates organizations from fragile Excel processes to robust SQL/R/Python pipelines, delivering improved data quality, profitability insights and churn prediction engines. His work spans actuarial-caliber insurance tooling—pension projection engines and customized yield-curve generators—to hands-on coaching that embeds best practices like version control and modular design across teams. A practical bridge between actuarial science and data science, he pairs rigorous statistical training (MSc Actuarial Science, Econometrics, Mathematical Statistics) with product-focused delivery. Based in Utrecht, he combines consultancy depth with a hacker’s curiosity—he even took a sabbatical to explore blockchain and hands-on travel—bringing both domain wisdom and adventurous problem solving to client engagements.
12 years of coding experience
6 years of employment as a software developer
Msc., Actuarial Science, Msc., Actuarial Science at University of AmsterdamMSc., Econometrics, MSc., Econometrics at University of GroningenMsC., Mathematical Statistics and Probability, MsC., Mathematical Statistics and Probability at Kansas State UniversityVWO-B, VWO-B at Canisius College Nijmegen
Dutch, Spanish, English
Github Skills (7)
python3
django3
forex1
algorithmic-trading1
trading1
cryptocurrency1
trading-bot1
Programming languages (1)
Github contributions (5)
Oxylo/actuarialdatascience
Aug 2017 - Sep 2020
Contributions:23 commits, 2 PRs, 21 pushes in 3 years 2 months
Oxylo/factors
Jul 2016 - Apr 2024
Generates actuarial factors for premium calculations
Contributions:5 PRs, 62 pushes, 5 branches in 7 years 10 months
actuarialcalculations
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