Alexander Deisling

Hello! I am a Data Science student in a dual study program at DHBW. By combining academic teaching with direct practical experience in a partner company, I am accustomed to solving data-driven problems efficiently and cleanly.

I offer support with data preparation, analysis, and the automation of manual processes. My goal is to save you time and generate real added value from your data.

What I can do for you:

📊 Data Cleaning & Pre-Processing

Merging different data sources (Excel, CSV, SQL).

Cleaning errors, duplicates, and missing values.

Standardizing formats (e.g., phone numbers, addresses, date formats).

Technology: Python (Pandas, NumPy).

📈 Data Analysis & Visualization

Exploratory data analysis (identifying trends and patterns).

Creating meaningful charts and reports.

Cross-selling analysis (market basket analysis – which products are bought together?).

Customer segmentation (Who are your best customers?).

⚙️ Process Automation

Automating recurring Excel tasks using Python scripts.

Automatic export and sending of reports.

🤖 Machine Learning Basics

Creating simple prediction models (regression, classification).

Applying common algorithms to your business questions.

My Tech Stack:

Languages: Python (focus), SQL

Libraries: Pandas, NumPy, Matplotlib, Scikit-learn

Tools: Jupyter Notebooks, Excel, VS Code

Why work with me?

Dual Expertise: As a DHBW student, I bring a high level of work discipline and professional standards.

Fast & Reliable: I meet deadlines and communicate transparently.

Value for Money: You receive sound data science work at fair junior rates.

Do you have a project in mind or a chaotic Excel file that needs taming? Feel free to contact me!

I also work for under €125.