Chemical Engineer Expert
AfterQuery • Remote
Education
Not stated
Type
Hourly
Pay Rate
$115/hr
Listed
29d ago
About this role
From the AfterQuery listing
Chemical engineers to build the process design and safety scenarios frontier AI labs use to test model judgment. Remote, async, paid weekly.
AfterQuery builds the expert evaluation data that frontier AI labs use to measure and improve their models. We're hiring chemical engineers as contractors to author and grade the process design and safety scenarios those evaluations run on.
What you'll actually do
Author realistic process scenarios, from mass balances through safety review
Write reference answers with the process and safety reasoning behind each decision
Grade model output for technical accuracy and process safety
Flag designs that read plausible but would be unsafe or infeasible at scale
Who this is for
Engineers with a degree in chemical engineering or a closely related field
Practitioners with at least 2 years of process, plant, or product engineering experience
Engineers with depth in process design, process safety, or scale up
Clear writers who can document the reasoning behind a process decision
Contract and pay
$100 to $130/hr, paid weekly via Stripe. Your rate is set from your experience, not negotiated down after you start.
Fully 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/chemical-engineer-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.
Why this role
This Chemical Engineer Expert role pays $115/hr for your STEM judgment directly, without requiring case files, client meetings, or firm overhead to get there.
Talent pool
We're light on STEM candidates
We've matched 65 people with a STEM background against 726 STEM 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 profileSkills 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 STEM work look like for a Chemical Engineer Expert?
Tasks here are scoped to STEM, not generic labeling. As a Chemical Engineer Expert, expect to draw on real domain judgment (evaluating outputs, correcting errors, or providing expert reasoning specific to STEM) rather than following a one-size-fits-all rubric. If you don't have hands-on STEM background, this is likely not the right listing to start with.
What specific skills does this listing call for?
Coding and Expert are named directly in the listing. If you don't have hands-on experience with these, expect the screening process to test for them 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.