Roel H.

Roel H.

Data Scientist

Top performer 9.1/10
Portugal
Trusted member since 2022
15 years of experience

Roel is a senior data scientist with over ten years of industrial experience, in AI and Machine learning, with a background in High energy physics. He is proficient in writing production-quality analytics code in various domains, including Industry 4.0, Smart and safe Cities, and Sports & entertainment.

Main expertise

PythonPython6 years
Machine LearningMachine Learning15 years
Data Science15 years
NumPyNumPy15 years
18+

Experience7

Data Scientist

Freelance, Portugal
Jan 2022 · 4y 2m
  • Consultancy work in data analytics and crypto.

Data Scientist/Machine Learning Engineer

Freelance (Portugal, remote)
Information Technology (IT) and Services
Jan 2022 · 4y 2m

Clients and Projects:

- Electrolux is a Swedish multinational home appliance manufacturer headquartered in Stockholm.

  • Utilized Python packages (lifetimes, attribution, surpyval) to analyze customer purchase behaviors and marketing channel effectiveness.
  • Optimized marketing strategies and the sales funnel through detailed customer journey mapping, increasing conversions and customer satisfaction.

...

- BEF4U is a Belgium company predicting the energy consumption in shopping malls

  • Developed predictive models to forecast energy consumption in shopping malls.
  • Analyzed large datasets to identify patterns and optimize energy usage, contributing to cost-saving strategies.

...

- Uptime water management provider

  • Developed a Python-based system comprising a dashboard for visualization and parameter tuning, and a batch processing engine for analyzing sensor data.
  • The AI model learned to identify pump usage by detecting temperature changes when water was pumped.

...

- Polpo, LLM project, using a Dutch model and Langchain to process big documents in chunks (political papers, reports of discussions from Dutch parliament). Found the right model based on language and confidentiality needs. Worked on minimizing the response time.

...

- fBeta GmbH, evaluation of LLM generated answers versus human expert answers

  • different evaluation metrices were developped to compare human expert answers verus LLM generated answers based on word embeddings.
Data Science
NumPyNumPy
XGBoostXGBoost
PyCharmPyCharm
SciPySciPy
8+

Senior Data Scientist

AGT International, Germany
Jan 2015 - Dec 2021 · 6y 11m
  • Provided a major contribution to developing the world's first sensor-based bull scoring system for the Professional Bull Riders organization using artificial intelligence.
  • Responsible for the implementation of the analytics solution of bull scoring.
  • Finalized project to customer satisfaction.
  • Participated in various pre-sales activities, proofs-of-concept, and scope definition for multiple projects in sports and entertainment, including basketball, horse riding, and surfing.

Senior Data Scientist

AGT International (Darmstadt, Germany)
Artificial Intelligence (AI)
Jan 2015 - Dec 2021 · 6y 11m

AGT International is a leader in Artificial Intelligence for IoT solutions. Proven expertise is across various sectors, including smart cities, manufacturing, safety and security, and enabling independent living for the elderly.

  • Provided a major contribution to developing the world's first sensor-based bull scoring system using artificial intelligence for the Professional Bull Riders organization.

  • Responsible for the implementation of the analytics solution of bull scoring. This included sensor signal processing, feature extraction of bull parameters, and model building to predict the difficulty of a ride according to multiple criteria.

  • Finalized project to customer satisfaction.

  • Participated in various pre-sales activities, proofs-of-concept and scope definition for multiple projects in sports and entertainment, including basketball, horse riding, and surfing.

Data Science
NumPyNumPy
XGBoostXGBoost
PyCharmPyCharm
Scikit-learnScikit-learn
4+

Senior Researcher

AGT International, Germany
Jan 2012 - Dec 2014 · 2y 11m
  • Build prototypes and production code for various applications in industry 4.0, including predictive maintenance for heavy machinery, machine state estimation, and anomaly detection.
  • Contributed to a system for dike stability monitoring with in-situ sensors. The analytics work included failure prediction, trend analysis, modeling, and simulation of complex environmental systems.

Senior Researcher

AGT International (Darmstadt, Germany)
Artificial Intelligence (AI)
Jan 2012 - Dec 2014 · 2y 11m

AGT International is a leader in Artificial Intelligence for IoT solutions. Proven expertise is across various sectors, including smart cities, manufacturing, safety and security, and enabling independent living for the elderly.

  • Build prototypes and production code for various applications in Industry 4.0, including predictive maintenance for heavy machinery, machine state estimation, and anomaly detection. Customers were from the German industry.

  • Contributed to a system for dike stability monitoring with in-site sensors.

  • The analytics work included failure prediction, trend analysis, modeling, and simulation of complex environmental systems.

Data Science
NumPyNumPy
XGBoostXGBoost
PyCharmPyCharm
Scikit-learnScikit-learn
4+

Senior Researcher

Royal Military School (Brussels, Belgium)
Education
Jan 2003 - Dec 2011 · 8y 11m
  • Developed analytics code for various projects, including automatic flood detection using radar imagery, non-destructive testing of material defects using Terahertz radiation, mine detection on the seafloor using synthetic aperture sonar imagery
MatlabMatlab

Assessments

Engineering excellence

Roel’s overall performance in a 90-minute live technical assessment ranks in the top 5% of vetted Data Scientists at Proxify.

Certificates 8

Coursera
Deep LearningCoursera
Improving Deep Neural Networks: Hyperparameter Tuning, Regularization and OptimizationCoursera/Deeplearning.ai
Coursera
Deep LearningCoursera
Do you want to know more about Roel’s certifications?Book a call

Education

Vrije Universiteit Brussel
Vrije Universiteit Brussel
High Energy Physics1995 - 2001
Vrije Universiteit Brussel
Vrije Universiteit Brussel
Physics1992 - 1994
UOB
University of Brussels
Physics; elementary particle physics; astronomy1990 - 1992

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