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Mathematics afterquery

Statistician & Experimentation Expert

AfterQuery • Remote

Education

Master's

Type

Hourly

Pay Rate

$115/hr

Listed

29d ago

Apply Now →

About this role

From the AfterQuery listing

Statisticians and experimentation experts in causal inference and A/B testing to build the scenarios frontier AI labs use to test model reasoning.

AfterQuery builds the expert evaluation data that frontier AI labs use to measure and improve their models. We're hiring statisticians and experimentation experts as contractors to author and grade the causal inference and A/B testing scenarios those evaluations run on.

What you'll actually do

Author realistic statistics scenarios, from study design through analysis and interpretation
Write reference answers with the statistical reasoning behind each modeling choice
Grade model output for methodological soundness and correct interpretation
Flag analyses that read rigorous but draw invalid conclusions

Who this is for

Statisticians and biostatisticians with an advanced degree in a quantitative field
Practitioners with at least 2 years of applied statistics or experimentation work
Experts with depth in experimental design, causal inference, or A/B testing
Analysts fluent in R or Python who can document the reasoning behind a modeling choice

Contract and pay

$80 to $150/hr, paid weekly via Stripe. Your rate is set from your experience, not negotiated down after you start.
Remote, fully async. No fixed hours.
Minimum 10 hours per week, no maximum. Scale up or down week to week.
No screen recording, no keystroke monitoring, no idle timers.
Independent contractor. Ongoing project work rather than single task batches.

How our hiring process works

Apply at /apply/statistician-experimentation-expert. About five minutes. Resume plus a few structured questions.
Resume review. Every application gets read against a published rubric and gets a decision.
Written assessment. You may be asked to take a written assessment for further placement.
Onboarding. Sign the contractor agreement, connect Stripe, and get platform access.
Project match. You're matched to live work in your specialty, usually within a week of onboarding.

About AfterQuery

AfterQuery is an expert data lab. We build the evaluation and training data that frontier AI labs use to measure what their models can and can't do in real professional work. Our contributors are practicing professionals, not annotators, and the work is credited, reviewed, and paid at professional rates.

How long hiring takes

Across the AI training platforms we refer candidates to, the median gap between referral and hire is about 30 days. It varies by platform and role, so treat it as a rough guide for this one.

Within 2 weeks
~25%
Within 6 weeks
~60%
Within 3 months
~80%

Why this role

AI labs pay $115/hr for a Statistician & Experimentation Expert because getting Mathematics nuance wrong in a training set is expensive to fix later. That's what this rate is pricing in.

Talent pool

We're light on Mathematics candidates

We've matched 65 people with a Mathematics background against 726 Mathematics listings we've tracked, so most go out without one. Set up a profile and we'll consider you for a role like this one.

Set up your profile

Skills and categories

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Common questions

When does AfterQuery pay contractors?

On a per-contract schedule, typically net-15 to net-30 from invoice submission rather than the weekly payouts some platforms offer. Confirm the exact terms in your contract, and ask your project contact directly if payment timing affects your cash flow.

Do I need a PhD to qualify for AfterQuery?

Only for specialist roles: ML research, atmospheric modeling, bioinformatics, COBOL, and audit accounting positions require verifiable credentials, usually a PhD, master's degree, or 5+ years of professional experience. AfterQuery's domain screeners check credentials before confirming an assignment, so listing a degree without the matching experience won't get you through. Generalist reviewer roles have a lower bar but come up less often.

Is AI training work the same as traditional consulting?

No. Instead of client deliverables, you're given complex scenarios to evaluate: grading the AI's logic, correcting its hallucinations, and supplying expert-level reasoning it doesn't have on its own. The job is closer to teaching than consulting.

Why do these AI training roles pay so much?

Because general knowledge isn't what's being tested. The model already knows the basics; what it needs is expertise on edge cases, the rare, difficult, highly technical judgment calls only a senior professional in the field would make correctly.

What does Mathematics work look like for a Statistician & Experimentation Expert?

Tasks here are scoped to Mathematics, not generic labeling. As a Statistician & Experimentation Expert, expect to draw on real domain judgment (evaluating outputs, correcting errors, or providing expert reasoning specific to Mathematics) rather than following a one-size-fits-all rubric. If you don't have hands-on Mathematics background, this is likely not the right listing to start with.

What specific skills does this listing call for?

Expert is named directly in the listing. If you don't have hands-on experience with this, expect the screening process to test for it directly rather than accepting adjacent experience as a substitute.

How much does this specific role pay?

This listing is posted at $115/hr, an hourly rate. Pay can change between when we last checked the listing and when you apply, so confirm the current number on the platform's own application page before committing time.

What happens when I click Apply on this listing?

You'll be taken to Afterquery's external site to complete your application there. This listing links through a referral, but the process is identical to applying directly; the link just routes you correctly. Create an account on their site and follow their onboarding steps.

Do I need a Master's to qualify?

This role lists a master's degree as a requirement. In practice, the domain assessment is the real gate. If you can pass it, the degree is usually secondary. However, some platforms verify credentials formally, so list your actual qualifications accurately on your profile.