Juraj Sofranko
Lead Developer at Zurich Insurance Company Ltd
Bratislava, Region of Bratislava, Slovakia
Summary
👤
Senior🎓
Top SchoolJuraj Sofranko is a Lead Developer and data science veteran with 18+ years of experience turning telco and enterprise-scale datasets into actionable insights using statistics, machine learning and distributed/cloud architectures. He has led personalization and recommendation research, contributed to patent-pending techniques, and driven production ML systems across companies like Amdocs, AT&T Mobility and Zurich Insurance. Comfortable with R, Python, Java, PL/SQL and big-data stacks (Hadoop, Hive, Teradata, Oracle), he bridges research-grade algorithms with robust, high-performance engineering. Juraj’s background in mathematics and long-running focus on quad-play telco data give him an uncommon depth in customer behavior, churn, fraud and personalization problems. Known for validating algorithm quality and performance at scale, he blends academic rigor with hands-on delivery in complex, regulated environments.
11 years of coding experience
11 years of employment as a software developer
MSc., Mathematics - Computer Graphics & Informatics, MSc., Mathematics - Computer Graphics & Informatics at Univerzita Komenského v BratislaveGPDT
Slovak, English, Polish
Github Skills (32)
ide10
insert10
rstudio10
reformat10
development-environment10
clipboard9
strings7
editor7
regular-expression7
pmml6
r6
evaluator5
mschart5
unit-testing5
testing4
Programming languages (3)
Github contributions (5)
sfr/RStudio-Addin-Snippets
Mar 2016 - Oct 2017
Contributions:5 releases, 101 commits, 3 PRs in 1 year 6 months
pipesclipboardreformatrstudioadd-in
sfr/Usable-Security
Jan 2015 - May 2017
Contributions:2 pushes in 2 years 3 months
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