
Rafael R PhD
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Data is the new oil!
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Esperienza lavorativa
Unlisted
Part time • 4 yrs 5 mos
Professor of Data Science
Aug 2022 - Dec 2023 • 1 yr 4 mos
Company: Sirius Education Taught data science and quantitative methods remotely — statistics, R/Python and applied analytics.
Data Scientist
Mar 2020 - Apr 2023 • 3 yrs 1 mo
Company: SENAI (National Service for Industrial Training) Built COVID-19 case-forecasting models powering a public-health decision dashboard (Monitora-Covid19). Designed a survey and a predictive infection-risk model to optimize PCR testing via risk-based sample pooling, reducing reagent use on low-probability cases. Delivered analytics and visualizations to support data-driven public-health decisions.
Doctoral Researcher (PhD)
Leeds • Full time
May 2016 - Dec 2019 • 3 yrs 7 mos
Company: Leeds Institute for Data Analytics PhD research on behaviour change and sustainable mobility (EMPOWER, EU Horizon 2020). Designed and analyzed a large-scale survey (920 respondents), applied behavioural-science theory (Theory of Planned Behaviour, Norm-Activation Model) and psychographic segmentation (cluster + discriminant analysis), and modeled determinants of travel behaviour. Published peer-reviewed work; conducted thesis analytics within the Leeds Institute for Data Analytics (LIDA).
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achievingskills

Stati Uniti
I had a very positive experience working with Rafael on a methodological review of our grant Letter of Inquiry. His professionalism was evident throughout the entire process—communication was clear, expectations were well-defined, and he approached the work with a high level of integrity and respect...
infiniteincorp

Stati Uniti
Rafael was exceptional to work with. He thoroughly reviewed our exercise physiology research study, verified our linear mixed-effects models in R, checked our statistical assumptions, and helped ensure every analysis was both rigorous and reproducible. He caught important details, explained his reasoning...
sarahnasser99

Emirati Arabi Uniti
amazing ! very professional , highly skilled and has a deep understanding of the topics to deliver high standard services . he is also fast to respond and committed to deliver on the agreed date of delivery . thank you
giacomo901

Finlandia
Rafael was highly responsive and detail-oriented throughout the process. He addressed all comments thoroughly, provided clear explanations for each correction, and ensured full consistency across the analysis and documentation. His proactive approach and attention to detail made the collaboration smooth and efficient.
joabe_barbosa

Stati Uniti
Rafa is incredible! Fully recommend him, he is excellent at what he does! He helped me, answered questions and made me understand exactly what he did. He uses jargon, but explains exactly what he means and he guides you through everything so well!
