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Hiring now · posted 3d ago Science Contract · Remote

AI Trainer (Mathematics & Statistics)

$60–$120/hr

Published pay. The final rate depends on your test, experience and country.

Remote · Worldwide 100 openings Language: English Posted 9 Nov 2026

AI Trainer (Mathematics & Statistics) is remote AI-training work for data scientists, paying $60–$120/hr, open to applicants worldwide. Posted 9 Nov 2026, still open on 13 Nov 2026. Zekai lists it for free; the application goes to the employer's platform.

About this role

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Pay: $60–$120/hour equivalent, paid per accepted task

Location: Global, fully remote

Job Type: Contractor

Time Commitment: 15+ hours per week

Schedule: Flexible

our partner is looking for Computational Mathematicians, Statisticians, and Optimization Experts with prior professional AI-training or model-evaluation experience to support a project focused on improving advanced AI systems.

You will use your mathematical expertise and programming skills to create challenging technical tasks, evaluate model-generated code and reasoning, identify failures, and establish objective standards for correct solutions. This role is intended for candidates who have completed substantive AI-training work involving mathematical, statistical, or optimization content.

What You’ll Work On

  • Create realistic computational mathematics and statistics tasks that challenge advanced AI models.
  • Develop task instructions, reproducible environments, reference solutions, and evaluation criteria.
  • Evaluate model-generated proofs, calculations, code, models, optimizations, and technical deliverables.
  • Identify logical errors, invalid assumptions, numerical instability, incorrect statistical methods, or reproducibility failures.

Required Qualifications

  • Prior paid experience training, evaluating, benchmarking, or improving AI systems on mathematical or technical tasks.
  • Strong practical proficiency with Python.
  • Deep expertise in at least one relevant mathematical specialization.
  • Hands-on experience using computational methods for numerical analysis, optimization, statistics, theorem proving, modeling, or scientific computing.

Relevant specializations may include applied mathematics, scientific computing, operations research, optimization, formal mathematics, theorem proving, probability, statistics, numerical methods, and mathematical modeling.

Public Proof of Skill

Strong applicants should provide evidence such as:

  • Peer-reviewed publications or preprints
  • Public mathematical, statistical, or optimization code
  • Google Scholar, ORCID, arXiv, or equivalent research profiles
  • Open-source numerical or mathematical software contributions
  • Competition, theorem-proving, or optimization results
  • Reproducible notebooks, models, proofs, benchmarks, or technical projects

Preferred Qualifications

  • Experience creating AI-training tasks, reference answers, rubrics, graders, or benchmark problems.
  • Experience reviewing other AI trainers’ technical submissions.
  • A master’s degree, PhD, or equivalent record of substantial computational work.
  • Experience with NumPy, SciPy, SymPy, pandas, Pyomo, OR-Tools, Lean, Coq, or comparable tools.
  • Experience validating numerical solutions, statistical results, optimization outputs, or formal proofs.
  • Availability to begin immediately.

Application Process

  • Submit your application, AI-training experience, specialization, and public technical evidence.
  • Complete an AI interview containing technical and integrity checks.
  • Complete a hiring-manager review.
  • If selected, complete project onboarding and begin your first assigned task.

Compensation

  • Compensation is output-based. Experts are paid for tasks that meet project specifications and quality requirements. Task availability and completion time may vary.

This is a 100% remote contract role, open to applicants worldwide in the countries the employer accepts.

Mathematics & StatisticsAI TrainingProgramming Skills

How applying works

  1. Click Apply now and enter your email.
  2. You go straight to the application. We email you a copy of this role and your link.
  3. Most platforms ask for a CV and a short skills test or AI interview in your field.
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What to know before you apply

Pay
At the published rate, 10 hours a week would be about $600–$1,200 and 20 hours about $1,200–$2,400 before tax. Hours depend on the project, so treat this as a ceiling, not a promise.
Openings
100 openings means this is a high-volume project. You are not competing for one seat: if you pass the test, there is room for you.
Location
Open worldwide in the countries the employer accepts. Payments usually go out through services like PayPal or Wise, so check one of them works in your country.
Credentials
The listing asks for a PhD. Put it in the first line of your profile: reviewers screen for it before anything else.
Test tips for data scientists
  • Check data leakage, metric choice and baselines before anything else.
  • Rebuild key numbers in a notebook when you can.
  • Explain trade-offs in plain language; reviewers value clarity.
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