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STEM Researcher — Computational Fields

Mercor

AI Expert - Machine Learning & AI Research Full-time Contingent Role
United States $60 – $90/hr July 25, 2026

Job description

Role Overview

Cincinnatus LLC is seeking experienced STEM Researchers specializing in computational fields to help develop next-generation evaluation benchmarks for frontier AI models. In this fully remote W-2 role, you will transform real-world scientific research workflows into complex, multi-step evaluation tasks that measure the reasoning, experimentation, and analytical capabilities of advanced AI systems.

Working alongside researchers at a leading AI lab, you will design rigorous benchmark tasks based on experimental design, hypothesis testing, computational analysis, and scientific methodology, helping define the standards for high-quality AI reasoning across computational research disciplines.

Key Responsibilities

Design Research Benchmarks

  • Create realistic, multi-step research tasks based on computational scientific workflows.
  • Design benchmarks involving study design, hypothesis testing, coding, data analysis, and scientific interpretation.
  • Develop evaluation challenges that reflect authentic research practices.

Author Reference Solutions

  • Complete your own benchmark tasks using Python and notebook environments.
  • Produce reproducible analyses and well-documented reference solutions.
  • Demonstrate rigorous scientific reasoning and methodology.

Evaluate AI Performance

  • Assess AI-generated solutions for methodological soundness, analytical accuracy, and scientific rigor.
  • Identify weaknesses in experimental design, implementation, and interpretation.
  • Provide detailed feedback to improve AI evaluation benchmarks.

Collaborate with Research Teams

  • Review benchmark tasks created by fellow researchers.
  • Work closely with AI researchers to refine evaluation standards.
  • Help define what distinguishes robust scientific reasoning from superficial analysis.

Required Qualifications

  • Master's degree or PhD in:

- STEM discipline

- Computational Social Science

- Computational Humanities

- Or equivalent practical experience in a research-intensive computational field

  • At least 1 year of experience in:

- Academic research

- Industry research

- National laboratory research

  • Hands-on experience with:

- Python

- Computational analysis

- Simulation

- Modeling

- Data pipelines

  • Strong understanding of:

- Experimental design

- Hypothesis testing

- Scientific evaluation

  • Proficiency with:

- Git

- Integrated Development Environments (IDEs)

- Jupyter Notebook

- Google Colab

  • Excellent written communication skills.
  • High attention to detail and ability to work independently.
  • Available to work approximately 35 hours per week.

Preferred Qualifications

  • Experience with:

- AI model evaluation

- AI training

- Benchmark development

- Task authoring

  • Strong problem-solving skills in research-oriented, open-ended environments.

Compensation

  • $60–$90 per hour
  • Full-time W-2 employment

Work Arrangement

  • Fully Remote (United States)
  • W-2 Contingent Role
  • Approximately 35 hours per week
  • Opportunity to work with a leading AI laboratory through Cincinnatus LLC
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