Data Science Expert — AI Projects (Python)
hackajob is collaborating with a leading client in the AI sector to connect specialists with project-based opportunities focused on testing, evaluating, and improving AI systems. Participation is project-based, not permanent employment.
What this opportunity involves
While each project involves unique tasks, contributors may:
* Design original computational data science problems simulating real-world analytical workflows (telecom, finance, government, e-commerce, healthcare)
* Create problems requiring Python programming to solve (Pandas, NumPy, SciPy, Sklearn, Statsmodels, Matplotlib, Seaborn)
* Ensure problems are computationally intensive and cannot be solved manually within reasonable timeframes
* Develop problems requiring non-trivial reasoning across data processing, statistical analysis, feature engineering, predictive modelling, and insight extraction
* Create deterministic, reproducible problems using fixed random seeds
* Base problems on real business challenges: fraud detection, forecasting, risk assessment, customer analytics
* Design end-to-end problems spanning the full data science pipeline (ingestion → cleaning → EDA → modelling → validation → deployment)
* 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/or publications showcasing real-world problem-solving
* Expert Python programming for data science (pandas, numpy, scipy, scikit-learn, statsmodels)
* Deep understanding of statistical analysis, ML algorithms, and practical applications
* Expert-level SQL and database operations
* 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
Time expectations: ~10–20 hours/week during active project phases (estimate only)
Payment: Up to $55/hour | Fixed or individual project rates | Incentive payments on some projects