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STEM Technical Specialist Rubric Design

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Job details

Pay

$100 USD/hr

Engagement

Contract, part-time

Location

Remote

United States only

Posted

Sep 30, 2026

OpenTrain on Trustpilot

The work

You will turn advanced technical judgment into clear questions, scoring rules, and reference answers used to improve AI systems. The work covers STEM and technical subjects, with a focus on whether solutions use sound reasoning rather than only reaching the right final answer.

  • Write expert-level technical questions that test genuine multi-step reasoning and reveal weaknesses in AI systems.
  • Create rubrics covering required reasoning, correct methods, acceptable alternatives, partial credit, and critical errors.
  • Evaluate AI-generated solutions for correctness, reasoning quality, completeness, methodology, and technical precision.
  • Find hidden errors, including correct conclusions reached through invalid assumptions or flawed logic.
  • Review other experts’ rubrics for ambiguity, missing criteria, redundancy, technical accuracy, and consistent scoring.
  • Create expert answers, explanations, and gold-standard evaluations for reinforcement learning and supervised fine-tuning workflows.

Requirements

  • Time: 20+ hours per week.
  • Language: Professional proficiency in English at C1 or higher, including precise technical writing.
  • Education: Bachelor’s degree or higher in mathematics, physics, chemistry, engineering, computer science, statistics, applied science, or another technical discipline.
  • Experience: At least 3 years of professional, academic, research, or industry experience in your stated technical domain.
  • Expertise: Advanced knowledge in a clearly defined technical field or specialization.
  • Skills: Ability to design detailed rubrics, separate valid reasoning from flawed reasoning, and write precise evaluation criteria.
  • Skills: AI evaluation, Benchmarking, Chemistry, Computer science, Engineering, English, Expert review, Mathematics, Model evaluation, Physics, Question writing, Rubric design

Open to applicants in

  • United States

Preferred

  • Preferred background: Exam writing, academic grading, peer or research review, technical quality assurance, standards development, or assessment design.
  • AI evaluation, reinforcement learning from human feedback, supervised fine-tuning, benchmarking, data annotation, prompt design, or large language model evaluation.

How to apply

  1. Press Apply now. You create a free account and add your resume.
  2. Complete your application for this role on OpenTrain.

Job ID: cmuns5yhc00060agmiw6iwvf9

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