

Data Scientist
⭐ - Featured Role | Apply direct with Data Freelance Hub
This role is for a Data Scientist on a part-time, hourly contract (1–2 months, possible extension) with a pay rate of $60–$120/hour. Key skills include data science, machine learning, Python, SQL, and experience with AI model deployment.
🌎 - Country
United States
💱 - Currency
$ USD
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💰 - Day rate
960
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🗓️ - Date discovered
September 2, 2025
🕒 - Project duration
1 to 3 months
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🏝️ - Location type
Remote
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📄 - Contract type
Unknown
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🔒 - Security clearance
Unknown
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📍 - Location detailed
United States
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🧠 - Skills detailed
#Data Wrangling #AI (Artificial Intelligence) #SQL (Structured Query Language) #Python #TensorFlow #Java #Scala #Statistics #PyTorch #Computer Science #Data Science #Mathematics #Datasets #ML (Machine Learning) #R
Role description
Crossing Hurdles is a recruitment firm. We refer top candidates to our partners working with the world’s leading AI research labs to help build and train cutting-edge AI models.
Position: Data Science Expert
Type: Hourly Contract
Compensation: $60–$120/hour (based on experience)
Location: Remote
Duration: 1–2 months (with possible extension)
Commitment: Part-time 15–25 hrs/week (flexible up to 40 hrs/week)
Role Responsibilities (Training support will be provided)
• Review and refine AI-generated prompts, responses, and code for clarity and accuracy.
• Validate technical concepts and ensure correctness across data science workflows.
• Provide structured feedback on solution quality, reasoning, and implementation.
• Tag, categorize, and organize content by topic and difficulty level.
• Support benchmarking and evaluation processes to assess AI model performance.
• Collaborate with researchers and other SMEs to improve training datasets.
Requirements
• Strong professional experience in data science, machine learning, or applied statistics (industry or research).
• Degree in Data Science, Statistics, Computer Science, Applied Mathematics, or related quantitative field (Bachelor’s minimum; advanced degree preferred).
• Strong proficiency in Python and SQL; familiarity with R, Java, or Scala is a plus.
• Hands-on experience building and deploying machine learning models with frameworks like scikit-learn, TensorFlow, or PyTorch.
• Solid background in statistical analysis, data wrangling, and feature engineering with large datasets.
• Ability to work independently and asynchronously in a fast-paced research environment.
P.S. Accept the Crossing Hurdles referral invite pop-up during the application process so we can keep you posted and help with any issues or questions.
Crossing Hurdles is a recruitment firm. We refer top candidates to our partners working with the world’s leading AI research labs to help build and train cutting-edge AI models.
Position: Data Science Expert
Type: Hourly Contract
Compensation: $60–$120/hour (based on experience)
Location: Remote
Duration: 1–2 months (with possible extension)
Commitment: Part-time 15–25 hrs/week (flexible up to 40 hrs/week)
Role Responsibilities (Training support will be provided)
• Review and refine AI-generated prompts, responses, and code for clarity and accuracy.
• Validate technical concepts and ensure correctness across data science workflows.
• Provide structured feedback on solution quality, reasoning, and implementation.
• Tag, categorize, and organize content by topic and difficulty level.
• Support benchmarking and evaluation processes to assess AI model performance.
• Collaborate with researchers and other SMEs to improve training datasets.
Requirements
• Strong professional experience in data science, machine learning, or applied statistics (industry or research).
• Degree in Data Science, Statistics, Computer Science, Applied Mathematics, or related quantitative field (Bachelor’s minimum; advanced degree preferred).
• Strong proficiency in Python and SQL; familiarity with R, Java, or Scala is a plus.
• Hands-on experience building and deploying machine learning models with frameworks like scikit-learn, TensorFlow, or PyTorch.
• Solid background in statistical analysis, data wrangling, and feature engineering with large datasets.
• Ability to work independently and asynchronously in a fast-paced research environment.
P.S. Accept the Crossing Hurdles referral invite pop-up during the application process so we can keep you posted and help with any issues or questions.