HVAC Expert - Remote Contract Position
Listing checked September 22, 2026 · pay as published by AfterQuery
Overview
AfterQuery needs licensed HVAC technicians to write the diagnostic and system design scenarios that frontier AI labs use to test model judgment on real trade work. You turn field problems into symptom-to-repair cases, then supply reference answers that show the system and code reasoning behind each step. The contract runs remote and async at 10 hours per week, with a pay band of $50 to $90 per hour and weekly Stripe payments. EPA Section 608 credentials matter here, along with a working command of refrigeration cycles, airflow, and load calculation.
What You'll Do6
- 1Author realistic HVAC scenarios that start with a symptom and carry through diagnosis and repair.
- 2Write reference answers that explain the system behavior and code reasoning for each step.
- 3Review model output for technical accuracy, efficiency, and safety.
- 4Flag recommendations that look plausible on the surface but would damage a compressor or vent carbon monoxide into a home.
- 5Grade AI responses against trade standards and safety codes.
- 6Build cases around refrigeration, airflow, controls, heat pumps, or building automation based on your background.
Requirements8
- 1EPA Section 608 certification, and a state HVAC license in states that mandate one.
- 2At least 2 years in installation, service, or controls.
- 3Ability to apply refrigeration cycles, airflow, and load calculation on the job.
- 4Written English strong enough for diagnostic notes that other experts can follow.
- 5Commitment of 10 hours per week or more.
- 6NATE certification or an HVAC contractor license.
- 7Depth in commercial refrigeration or building automation.
- 8Experience with heat pumps, geothermal, or high efficiency systems.
Who Should Apply
The best fit is a licensed HVAC tech with EPA 608, 2+ years in the field, and comfort writing out why a diagnosis is correct, not just what to replace. Candidates who know commercial refrigeration, building automation, heat pumps, or geothermal systems will find plenty of scenario topics that match their background. This contract suits someone who wants paid trade work without tools, travel, or a job site. This role is a poor match for techs who dislike documentation or want hands-on repair only. A common reason applicants score low is treating the written diagnostic work like a forum post: missing code citations, skipping the reasoning between symptom and repair, or offering advice that ignores safety and compressor protection.
Salary Insight
The posting lists $50 to $90 per hour with weekly pay through Stripe. The spread points to AfterQuery setting your final rate from field experience and credentials, so EPA 608 plus NATE or an HVAC contractor license can shape the offer.
Location
Compensation
$50–90/hr
Required Skills
Application Tip
Put your EPA Section 608 certification and any state HVAC license at the top of your application, since those are the credentials AfterQuery requests. Then list 2+ years of installation, service, or controls work and call out the systems you know best, such as commercial refrigeration, heat pumps, or building automation. If you hold NATE certification or a contractor license, add it in the first line so reviewers see it before your work history.
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