Live
Available for opportunities
Paul Koslowsky
Data Scientist
I solve data problems from messy datasets to deployed solutions. Combining statistical rigor with creative coding and intuitive interfaces - turning insights into tools people actually want to use.
import pandas as pd
import numpy as np
from sklearn import magic 🪄
# Find the signal in the noise
problem = understand_question()
data = wrangle(problem)
insights = analyze(data)
solution = build(insights)
print("Problem solved ✨")
Portfolio
Featured Projects
A selection of data science projects showcasing my skills in analysis, machine learning, and building end-to-end solutions.
Live
Live
DataSphere
Futuristic analytics platform with dark blue theme for exploring sales data, customer hierarchies, and product insights. Features advanced data visualization, real-time analytics, and intelligent price calculations with a modern UI design.
Python
Flask
React
SQLite
Pandas
Live
DolphinData
Individual frontend web development services. Custom UI/UX design, responsive web development, performance optimization, and modern framework integration. Building beautiful, fast, and maintainable web experiences tailored to your needs.
React
Next.js
TypeScript
CSS
JavaScript
Background
About Me
A data scientist who bridges analytics, creative coding, and practical problem-solving to build solutions that work.
I approach data problems holistically - from understanding the question to building the solution. Whether it's statistical analysis, machine learning models, or creating interactive visualizations, I enjoy the full journey. I also dabble in web design and frontend development, bringing data insights to life through thoughtful interfaces (this portfolio being one example).
Academic Career
MS Business Analytics
2024-2026Católica Lisbon School of Business and Economics
Master's program focused on data science, statistical analysis, and business intelligence. Core coursework in SQL, Python, machine learning, and data engineering.
Visiting Student
2022Hawaii Pacific University
International exchange program in business studies.
BS Business Administration
2020-2023Heinrich-Heine-Universität Düsseldorf
Bachelor's degree in business administration with focus on analytics and data-driven decision making.
Work Career
Analytics
2025-PresentVWS Befestigungstechnik GmbH
Data analysis and analytics work in a technical manufacturing environment. Building analytical tools and dashboards for business intelligence.
Startup Marketing
2023-2025specter automation
Marketing roles at a Cologne-based automation startup. Worked on marketing strategy, social media management, and brand development in a fast-paced startup environment.
Consulting & Student Club
2021-2024Heinrich Heine Consulting, ELFIN Consulting, roatel GmbH, HVM Heaven
Student consulting work and freelance marketing projects. Led marketing initiatives, developed social media strategies, and provided design support for various clients. Served as Head of Marketing for student consulting organization.
Data Problem Solving
From hypothesis to analysis, modeling, and actionable insights
Vibe Coding & Design
Creative visualizations and polished interfaces that feel alive
Applied ML & LLMs
Building models and AI systems that solve real problems
Expertise
Skills & Tools
The tools and approaches I use to move from raw data to working solutions.
Languages
Data Science
Machine Learning
AI & LLMs
Data Engineering
Web & Visualization
Surfing
Get in Touch
Let's Work Together
Always open to discussing data problems, creative coding projects, or opportunities to build something useful together.