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Rolf Hendriks

Washington, DC
rolf@rolfhendriks.netwww.rolfhendriks.netwww.github.com/RolfHendriks

Data scientist with demonstrated excellence in mobile app and game development. Strong foundation in math and software engineering with a keen eye for visual details. Recent training in data science using Python.


Skills
Languages: Python, Swift, SQL, HTML, CSS, Objective C, C++, C, C#, Java, Dart
Tools: Tableau, Jupyter Labs, Matplotlib, Pandas, Scikit-Learn, NLTK, SpaCy, Keras, TensorFlow
Techniques: Regression Analysis, KNN, Random Forests, Neural Networks, Cross Validation, Regularization, GridSearch, Pipelines, R^2 Scores, Confusion Matrices, ROC Curves
Areas of Expertise: Data Visualization, Monitoring / SRE, Client / Server Architecture, Performance Optimization, Natural Language Processing, Machine Learning, Localization, Accessibility

Experience

General Assembly
August 2024 - December 2024
Student

Full-immersion training bootcamp for data science using Python technologies

Key Achievements:

Capital One, McLean, VA
2021-2024
Lead iOS Developer

Development of shared mobile platform services

Key Achievements:

The Teaching Company, Chantilly, VA
2019-2021
iOS Developer

Sole Developer for Apple TV version of The Great Courses Plus

Key Achievements:

Rolf Hendriks

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Blackboard, San Francisco, CA
2013-2016
iOS Engineer

Developed and maintained mobile e-learning applications used by millions of teachers and students worldwide

Key Achievements:

Sylvan Learning, Baltimore, MD
iPad Developer

Sole designer, developer, and architect for iPad based learning app that replaces thousands of paper based lessons in hundreds of Sylvan learning centers nationwide

Key Achievements:


Other Experience

Data Annotation - AI TrainerMarch 2025 - Present

Interface with AI coding agents and assess possible response quality improvements

Braver Angels - Data Analyst

February 2025 - Present

Develop Looker Studio dashboards for membership growth and retention data

Naughty Dog, Inc. - Gameplay Programmer

Created special effects for award-winning Uncharted: Drake's Fortune video game franchise


Education and Training

General Assembly - Certificate in Data Science
December 2024
Carnegie Mellon University - Bachelor of Science in Discrete Math and Logic
Carnegie Mellon University - Minor in Computer Science

Additional Qualifications