Senior Data Science AI Task Designer (Python & SQL)

The work

You will create difficult, realistic data science problems based on end-to-end workflows across industries such as telecom, finance, government, e-commerce, and healthcare. The tasks should require substantial computation and careful reasoning, rather than being solvable by hand.

You will build and check solutions in Python, account for large-scale data and scalability, and explain the business context, problem, and verified answer clearly. Your work will help evaluate and train advanced AI systems on practical data science tasks.

• Design deterministic problems involving data processing, statistical analysis, feature engineering, predictive modeling, and insight extraction.
• Implement and verify solutions with pandas, NumPy, SciPy, scikit-learn, statsmodels, and related data science tools.
• Document business contexts, problem statements, reasoning requirements, and correct answers in clear technical English.
• Apply big-data and scalability considerations to computationally intensive workflows.

What it pays and takes

This is a part-time contractor role open worldwide. The work requires advanced data science experience and strong written English for precise technical documentation.

• Pay: $50 per hour.
• Schedule: Fewer than 20 hours per week.
• Work arrangement: Part-time contract, worldwide.
• Language: Advanced English at C1 level or higher.
• Experience: At least 5 years of hands-on data science experience with demonstrable business impact.
• Education: A master's degree or PhD in data science, statistics, mathematics, computer science, or a related field.
• Technical skills: Expert Python for data science, including pandas, NumPy, SciPy, scikit-learn, and statsmodels; proficient SQL and database operations.
• Knowledge: Strong statistics, machine learning algorithms, and real-world applications.
• Valued experience: Generative AI, large language models, retrieval-augmented generation, prompt engineering, vector databases, MLOps, TensorFlow, PyTorch, and LangChain.

How it works

Apply on OpenTrain. The employer reviews applications there.

About AI training work

AI training is the human work behind systems that learn from examples, including writing, checking, and rating model tasks. Experienced specialists are needed to create accurate examples and tests that show whether advanced AI can handle real-world work.

Where you can work

This role is 100% remote: you can work from any country except Andorra, Afghanistan, Barbados, Burkina Faso, Burundi, Brazil, Belarus, Belize, DR Congo, Central African Republic, Congo (Republic), Cameroon, China, Cuba, Cape Verde, Djibouti, Dominica, Eritrea, Fiji, Micronesia, Grenada, Georgia, Guinea, Equatorial Guinea, Guinea-Bissau, Honduras, Haiti, Iraq, Iran, Kyrgyzstan, Kiribati, Comoros, St. Kitts and Nevis, North Korea, Lebanon, Liberia, Lesotho, Libya, Montenegro, Marshall Islands, Mali, Myanmar, Mauritania, Maldives, Malawi, Nicaragua, Nepal, Nauru, Papua New Guinea, Palestine, Palau, Russia, Solomon Islands, Seychelles, Sudan, Sierra Leone, Somalia, Suriname, South Sudan, São Tomé and Príncipe, Syria, Eswatini, Chad, Togo, Tajikistan, Timor-Leste, Turkmenistan, Tonga, Tuvalu, Ukraine, Uganda, Vatican City, St. Vincent and Grenadines, Venezuela, Vanuatu, Samoa, Yemen, Zambia and Zimbabwe.