Hire the Best Data Scientists
in the Netherlands

Achievements from the past 5 years: * Decreased memory footprint for the backend of a heavy medical app by almost 25%. * Improved accuracy of energy consumption forecasts by more than 30%. * Increased pattern reading speed for a new type of storage medium by more than 150x. Skills: * AI/Machine Learning (10+ years, top international banks / online merchants) * Computer Vision (14+ years, lots of medical imaging, many modalities) * Optimization algorithms, avoiding "combinatorial explosions" * Data analysis, cleansing, transformation (ETL), and processing * Python/Rust/SQL/Matlab/C++/C Education: * PhD in Computer Vision from TU Delft, The Netherlands * MSc in Artificial Intelligence and Graphic Systems from "Politehnica" Univ. of Bucharest, Romania Books I contributed to: * “Handbook of Image and Video Processing”, Academic Press (Elsevier), 2005 * “Coronary Radiology”, Springer, 2008 * “The Essential Guide to Video Processing”, Academic Press (Elsevier), 2009 I'm looking forward to working in challenging projects, especially in the Machine Learning, Computer Vision and Logistics/ERP areas.

Data Scientist with expertise in machine learning models, AI research, scalable data pipeline, and data-driven solutions; developed a demand forecasting model achieving 91% accuracy. Proficient in diverse data science tools and techniques, including NLP, LLM, PySpark, and Azure ML Studio, CI/CD, and deploying ML solutions with end-to-end ownership research environments. Collaborated with clients to implement data-driven solutions that improved operational efficiency.

I have over a decade of experience working with technology and managing software projects. I have supervised and led the technical execution of multimillion-dollar contracts for my clients with tech companies such as Microsoft, Google and AWS as well as public entities such as the Swedish government. My greatest satisfaction is using state of the art technology to bring competitive innovation to businesses. I have supervised research papers from different universities in Sweden regarding machine learning and statistics, as well as successfully leading and managing distributed teams of software developers. My experience includes but is not limited to: -Data Extraction from PDFs using RAG -LLM Applications -Efficient Interfaces for Data Labeling at Scale -Automatic Speech Recognition Software -Inference and Productization of Machine Learning Models -R&D Management

Please also see my blog: jiddualexander.com I'm a data scientist / analyst and an expert R programmer. I am strong with ggplot (ggplot2 data visualisation) and I am also a Shiny App developer. I can create custom dashboards for your data with intelligent analytics and interactive graphics. I program in R 6 days a week and I am very confident with all aspects of a data analysis project. I use mostly the very powerful packages created by Hadley Wickham (data import, cleaning and tidying (tidyr), manipulation (dplyr), visualisation (ggplot2) and reporting (Shiny)). The list of online certificates (below) is a good indication of the focus of my skills. To understand the power of these tools for creating dashboards I suggest you take a look at RStudio's Shiny gallery (shiny.rstudio.com/gallery/). I have participated in the Master R Developer Workshop by RStudio, thaught by no other than Hadley Wickham himself. My expert knowledge in R extends to high quality functional programming, package building, meta-programming and more. I have a Master Degree in Theoretical Physics from Sussex University (UK) and very strong understanding of analytics and machine learning, including neural networks (which I studied at Uni), support Vector machines, RandomForest, Principal Component Analysis (PCA) and much more. Including the tools to train machine learning models I also have a fundamental understanding and set of tools to apply the correct models for specific situations.

Marie Skłodowska-Curie Postdoctoral Fellow (University of Groningen), PhD in IB (Universitetet i Agder, Norway) and MSc. in Applied Statistics (Universidad de Alcala, Spain). Previously: postdoctoral researcher at the Netherlands Interdisciplinary Demographic Institute of the Royal Netherlands Academy of Arts and Sciences, postdoctoral data scientist (Helmholtz-Zentrum Dresden-Rossendorf, Germany), postdoc consultant for the University of Groningen and the Oxford Poverty and Human Development Initiative (OPHI, Oxford University, see: ophi.org.uk/rolando-gonzales-martinez/), consultant for the United Nations Population Fund (UNFPA). I have 16 years of experience working in data analysis and data science projects with different softwares (MatLab, R, Python, SQL, Eviews, Stata, SmartPLS4, to name a few), in diverse scientific disciplines. I have also published several papers, see my RG profile here: researchgate.net/profile/Rolando-Gonzales-2

As a seasoned Software Engineer and Data Enthusiast with a Master's degree in Physics, I excel in a wide range of skills, from transforming data into actionable insights to building high-performance Python applications. My expertise includes Python development, back-end services, RESTful API development, Data Science, and Data Visualization, complemented by skills in Statistical Analysis. I also have hands-on experience with Raspberry Pi and Arduino. Explore my portfolio on Upwork to see how I can add value to your projects!