Senior Data Scientist, Data Engineering Expert

Posted 3 days ago

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About the role

  • Senior data scientists and engineers designing evaluation tasks and training frontier AI models. Remote contract work with Mercor and leading AI research labs.

Responsibilities

  • Design realistic, challenging data science and data engineering tasks
  • Create exploratory analyses, statistical models, machine learning pipelines, ETL and data pipeline designs, SQL and Python workflows, and experimentation or A/B test write-ups
  • Write precise, task-specific criteria for data science and data engineering deliverables
  • Apply consistent, evidence-based judgment to make assessments reproducible and defensible
  • Receive structured feedback from senior reviewers and iterate on submitted work
  • Train and evaluate frontier AI models
  • Collaborate with leading researchers on projects that train and enhance AI systems

Requirements

  • 4+ years of professional data science, data engineering, or machine learning experience
  • Experience at a leading technology or quantitative firm, top financial institution, top-tier consulting firm, or Fortune 100 company in qualifying roles
  • Experience may be split across more than one qualifying employer
  • Strong command of Python, SQL, statistical modeling, machine learning, experimentation, and causal inference
  • Ability to turn messy real-world data into rigorous analyses and reliable pipelines
  • Excellent written English, including ability to explain technical findings clearly
  • Bachelor's degree from an English-speaking country
  • Detail-oriented and consistent approach to evaluating complex work
  • Comfortable receiving feedback and calibrating judgment against set standards
  • Must not require H1-B or STEM OPT support

Benefits

  • Fully remote role
  • Flexible schedule / complete work on your own schedule
  • Projects may be extended, shortened, or concluded early depending on needs and performance
  • Weekly payments via Stripe or Wise based on services rendered
  • Competitive pay
  • Collaboration with leading researchers
  • Reasonable accommodations upon request

Job title

Job type

Contract

Experience level

Senior

Salary

$120 - $180 per hour

Degree requirement

Bachelor's Degree

Tech skills

ETLPythonSQL

Location requirements

RemoteUnited States

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