Jobs / Summary

Freelance Data Scientist (Python & SQL) - AI Trainer

Confidential company · Munich · Posted Jun 2, 2026

Public summary

This freelance opportunity connects experienced data science professionals with project-based AI tasks involving designing and validating complex, reproducible data science challenges using Python and SQL. Contributors work on real-world business scenarios across various industries. Projects are part-time and non-permanent with an expected workload of 10–20 hours per week during active phases, with compensation up to $58 per hour equivalent. English proficiency at C1+ level is required.

Location and work setup

Location
Munich
Remote status
Remote
German requirement signal
No German Required Detected
Detected job language
English

Salary

USD 58.00 - 58.00 hour

Responsibilities

Design and develop computational data science problems simulating real-world analytical workflows in industries such as telecom, finance, government, e-commerce, and healthcare; create Python-based problem sets involving data processing, statistical analysis, feature engineering, predictive modeling, and result extraction; ensure reproducibility and computational intensity of problems; incorporate big data scenarios and end-to-end data science pipeline stages; verify solution correctness using Python libraries; document problems with clear business context and verified answers.

Qualifications

At least 5 years of professional data science experience with demonstrable business impact; strong portfolio of projects/publications illustrating applied problem-solving; expert proficiency in Python for data science including pandas, numpy, scipy, scikit-learn, and statsmodels; advanced skills in statistical analysis and machine learning algorithms; expert SQL and database operation abilities; experience with generative AI technologies including LLMs, retrieval-augmented generation, prompt engineering, and vector databases; understanding of MLOps and model deployment; familiarity with modern machine learning frameworks like TensorFlow, PyTorch, and LangChain; strong written English communication skills at C1+ level.

Skills

Python SQL Pandas Numpy Scipy Scikit-learn Statsmodels Matplotlib Seaborn Statistical Analysis Machine Learning Generative AI LLMs Retrieval-Augmented Generation Prompt Engineering Vector Databases MLOps TensorFlow PyTorch LangChain Data Processing Feature Engineering Predictive Modeling Data Science Pipeline Big Data Data Ingestion Exploratory Data Analysis Model Deployment English C1+