Senior Data Scientist

Mercor is hiring experienced Data Science professionals to support a variety of high-impact research collaborations with leading AI labs. Freelancers will help improve AI systems through work on code validation, prompt refinement, algorithmic evaluation, and model benchmarking. This is a unique opportunity to apply your engineering expertise toward shaping the next generation of intelligent systems. Key Responsibilities • Review and refine AI-generated prompts, responses, and code • Validate concepts for technical accuracy • Provide structured feedback on solution quality and clarity • Tag and organize content by topic and difficulty • Support benchmarking efforts to assess model capabilities Ideal Qualifications • 3+ years of experience in data science, machine learning, or applied statistics (industry or research) • Degree in Data Science, Statistics, Computer Science, Applied Mathematics, or a 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 using frameworks like scikit-learn, TensorFlow, or PyTorch • Experience with statistical analysis, data wrangling, and feature engineering on large datasets Project Timeline • Start Date: Immediate • Duration: 1–2 months • Commitment: Part-time (15–25 hours/week, with flexibility up to 40 hours/week) • Schedule: Fully remote and asynchronous – flexible working hours Compensation & Contract • Competitive hourly rate based on experience ($80–$120 USD/hr) • Independent contractor • Daily payment via Stripe Connect Application & Onboarding Process • Upload your resume • AI interview: A short, 15-minute conversational session to understand your background, experience, and interest in the role • Follow-up communication within a few days with next steps and onboarding details About Mercor Mercor is a San Francisco-based company specializing in connecting elite professionals with cutting-edge AI initiatives. Our investors include Benchmark, General Catalyst, Adam D’Angelo, Larry Summers, and Jack Dorsey. Thousands of professionals across engineering, research, and creative fields have partnered with Mercor on frontier projects shaping the future of AI. Apply today and leverage your data science expertise to help build the future of AI-driven systems!