Data Scientist Intern (Remote)

We run a marketplace with over 300,000 active sellers and fulfillment centers in four regions. We're looking for a Data Scientist Intern (Remote). Remote ML internship focused on real company data, not Kaggle datasets. Most of the time goes into cleaning data and checking whether a model actually helps. Remote within the US. The team meets in Phoenix once a quarter, travel covered. Most of our work is async, and meetings are kept short. We talk mostly in Slack and hop on quick calls when something needs discussing.

The work:

• Write prompts and evaluation sets for LLM features, and score the outputs
• Engineer features from transaction, text or event data
• Track experiments in MLflow or Weights & Biases so results can be reproduced
• Clean and prepare datasets in Python using pandas and NumPy
• Label and review samples of training data to check quality

About you:

• Based in the US for the duration of the internship
• Currently enrolled in a bachelor's or master's program, graduating 2028
• Laptop with 8 GB RAM or more and a stable internet connection (no GPU needed, we provide cloud compute)
• Available at least 30 hours a week, with some flexibility during exam weeks
• Basic statistics: distributions, hypothesis testing, sampling

12 weeks, starting Spring 2027. Stipend: $41.00 to $43.00/hr.

Perks: Mentorship from a dedicated buddy and manager, Final presentation to leadership, Learning and development stipend.

Applicants must be authorized to work in the U.S.

Duration: 12 weeks. Start: Spring 2027.

Demo job created on 11jobs for testing and demonstrations. It is not an actual opening at Tallyhouse Apps.