Waldir Leoncio
Research Software Engineer at University of Oslo
Oslo, Norway
Summary
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Rockstar🎓
Top SchoolWaldir Leoncio is a Research Software Engineer in Oslo with 11 years of experience applying rigorous statistical training to build reproducible research software and scalable data pipelines. With a Ph.D. in Statistics from Padova and a background merging large administrative datasets at Brazil’s AGU, he blends deep methodology with practical engineering—authoring R packages and automating heavyweight ETL and reporting workflows. At the Oslo Centre for Biostatistics and Epidemiology he serves as a senior scientific programmer, translating complex measurement and epidemiological problems into reliable code and tools. He has a track record of shipping open, reproducible research artifacts from his Ph.D. and visiting research, and he teaches statistical measurement principles as well. Quietly versatile, he moves between hands-on R development, research dissemination, and production-grade data engineering, making him a bridge between statisticians and software teams.
11 years of coding experience
10 years of employment as a software developer
Ph.D., Statistics, Ph.D., Statistics at Università degli Studi di PadovaBachelor's degree, Statistics, Bachelor's degree, Statistics at Universidade de Brasília
Portuguese, English, Italian, German, Norwegian
Stackoverflow
11,081reputation
1.9mreached
68answers
85questions
latex
top-5%
plot
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reshape
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r
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database
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subset
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Github Skills (200)
proton10
wiimote10
population-structure10
zenodo10
terminal-app10
transcriptomics10
matlab-gui10
serverless10
ninja10
simulate10
r10
matlab10
editor10
github-bot10
single-cell-analysis10
Programming languages (20)
Github contributions (5)
tmatta/lsasim
Jul 2018 - Nov 2021
Simulate large scale assessment data
Contributions:9 releases, 1029 commits, 4 PRs in 3 years 5 months
pythonlarge-scale-assessmentmachine-learningscalesimulation
ocbe-uio/ocbe-uio.github.io
Feb 2020 - Sep 2025
Contributions:10 pushes, 1 branch, 7 comments in 5 years 7 months
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