[ Freelance Data Scientist ]

Hi, I'm Piene Claessen

I turn messy data into systems people trust.

6+ years experience Data Science GenAI
Piene Claessen — Freelance Data Scientist
01

Who am I?

I'm a freelance data scientist with a unique background combining military precision with advanced analytics expertise.

My journey from military pilot to data scientist has shaped my approach: structured, reliable, and focused on delivering measurable business value. I specialize in developing end-to-end data solutions, from dashboards to machine learning models, and translating technical outcomes into clear, actionable insights for stakeholders.

In recent years, I've worked in complex, high-stakes environments where data directly supports operational decision-making. I've built predictive maintenance models, developed LLM-powered AI tools, and designed data governance frameworks that make information accessible and actionable.

Certifications

📊
PL-300
Data Analyst Associate
☁️
AZ-900
Azure Fundamentals
Download CV
02

Skills & Expertise

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Programming

Python
SQL
PostgreSQL
Version control / Git
Docker
REST API
🤖

Machine Learning

Supervised Learning
Unsupervised Learning
Feature Engineering
Hyperparameter Tuning
Model Evaluation
Model Deployment
🧠

LLMs & AI

RAG Pipelines
LangChain
OpenAI API
HuggingFace
Prompt Engineering
📈

Data & Visualization

Power BI
Power Query
Azure
Matplotlib
Plotly
Seaborn
03

Get In Touch

Let's Work Together

I'm currently available for freelance data science projects. Whether you need predictive analytics, machine learning solutions, LLM integration, or data strategy consulting, I'd love to hear about your project.

My approach combines technical excellence with business understanding, ensuring that data solutions deliver real, measurable value to your organization.

Available for new projects
Schedule a Free Discovery Call