Data Scientist - Python (Remote)

About the role

We are looking for a remote Data Scientist with strong Python expertise to develop, train, and optimize AI models for a leading technology and internet company. The role involves collaborating with researchers and annotators to implement reinforcement learning with human feedback and to refine reward models.

Key responsibilities

• Design, develop, and maintain high‑quality Python code for training and optimizing AI models.
• Conduct evaluations to benchmark model performance and analyze results for continuous improvement.
• Evaluate and rank AI model responses to user queries across diverse domains, ensuring alignment with predefined criteria.
• Provide detailed explanations and rationales for evaluations, demonstrating strong reasoning and technical expertise.
• Lead supervised fine‑tuning efforts, including creation and maintenance of task‑specific datasets.

Required profile

• Proficiency in Python for data analysis and model development.
• Experience with data science and machine learning techniques.
• Ability to extract insights from public databases using analytical skills.
• Strong bug‑fixing abilities and thorough technical documentation skills.
• Excellent communication skills to articulate reasoning in Jupyter notebooks or similar formats.

Required skills

• Python
• Machine Learning
• Data Analysis
• Jupyter notebooks

What we offer

• Competitive compensation based on experience.
• Opportunity to work on cutting‑edge AI systems for a global technology leader.
• Fully remote work from anywhere.