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Data scientist (python & sql) - freelance ai trainer

Manchester
Freelance
Mindrift
Data scientist
€40,953 a year
Posted: 1 June
Offer description

Participation is project-based, not permanent employment.


What This Opportunity Involves

* Design original computational data science problems that simulate real-world analytical workflows across industries (telecom, finance, government, e-commerce, healthcare)
* Create problems requiring Python programming to solve (using Pandas, Numpy, Scipy, Sklearn, Statsmodels, Matplotlib, Seaborn)
* Ensure problems are computationally intensive and cannot be solved manually within reasonable timeframes (days/weeks)
* Develop problems requiring non-trivial reasoning chains in data processing, statistical analysis, feature engineering, predictive modeling, and insight extraction
* Create deterministic problems with reproducible answers: avoid stochastic elements or require fixed random seeds for exact reproducibility
* Base problems on real business challenges: customer analytics, risk assessment, fraud detection, forecasting, optimization, and operational efficiency
* Design end-to-end problems spanning the complete data science pipeline (data ingestion → cleaning → EDA → modeling → validation → deployment considerations)
* Incorporate big data processing scenarios requiring scalable computational approaches
* Verify solutions using Python with standard data science libraries and statistical methods
* Document problem statements clearly with realistic business contexts and provide verified correct answers


What We Look For

* 5+ years of hands‑on data science experience with proven business impact
* Portfolio of completed projects and publications showcasing real‑world problem‑solving
* Expert Python programming for data science (pandas, numpy, scipy, scikit‑learn, statsmodels)
* Expert statistical analysis and machine learning – deep understanding of algorithms, methods, and their practical applications
* Expert with SQL and database operations for data manipulation and analysis
* Experience with GenAI technologies (LLMs, RAG, prompt engineering, vector databases)
* Understanding of MLOps practices and model deployment workflows
* Knowledge of modern frameworks (TensorFlow, PyTorch, LangChain)
* Strong written English (C1+)


How It Works

Apply, Pass qualification(s), Join a project, Complete tasks, Get paid.


Project time expectations

For this project, tasks are estimated to require around 10-20 hours per week during active phases, based on project requirements. This is an estimate, not a guaranteed workload, and applies only while the project is active.


Compensation

On this project, contributors can earn up to $55 per hour equivalent, depending on their level and pace of contribution.

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