Nirosha Rathnayake
Director, Decision Sciences at First National Bank of Omaha
Omaha, Nebraska, United States
Summary
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Senior🎓
Top SchoolNirosha Rathnayake is a Director of Decision Sciences with eight years of applied data science and biostatistics experience, currently leading analytics at First National Bank of Omaha. She holds a PhD in Biostatistics and an MA in Mathematics, and blends rigorous statistical methodology with machine learning to solve business and public health problems using Python, R, SAS, MATLAB and BayesiaLab. Her background spans academia and industry—from graduate research and biostatistics consulting at UNMC to data science roles at Union Pacific—giving her strong domain fluency in experimental design, causal inference and predictive modeling. She is also experienced in production data tools and visual analytics (Teradata, Oracle, SQL, RShiny, Tableau, PowerBI), enabling models to move into operational use. Notably, she combines deep theoretical training with hands-on deployment experience, making her adept at translating complex statistical results into actionable, stakeholder-ready insights.
8 years of coding experience
8 years of employment as a software developer
Master of Arts (MA) Mathematics, Mathematical Statistics and Probability, Master of Arts (MA) Mathematics, Mathematical Statistics and Probability at University of Nebraska at OmahaBachelor of Science (BS), Production Engineering Specialized in Mathematics, Bachelor of Science (BS), Production Engineering Specialized in Mathematics at University of PeradeniyaDoctor of Philosophy - PhD, Biostatistics, Doctor of Philosophy - PhD, Biostatistics at University of Nebraska Medical Center
Sinhalese, English
Github Skills (18)
r-package7
missing-data7
tidymodels7
r-language7
modeling6
tidy6
tidyverse6
r5
statistics4
hypothesis-testing4
regression-models4
dplyr4
bioinformatics3
mass-spectrometry2
image-processing2
Programming languages (2)
Github contributions (5)
niroshar/My-Profile
Mar 2018 - Jan 2023
Contributions:117 commits, 107 pushes, 1 branch in 4 years 11 months
niroshar/hglmbc
Jun 2020 - Jun 2020
Contributions:64 pushes, 1 branch in 6 days
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