HVAC System Reasoning Reviewer

IXO is engaging specialists to evaluate HVAC diagnoses and system choices that are technically sound and safe. Your contribution is technical work: make the reasoning inspectable, identify substantive errors and provide evidence that supports a reliable assessment.

Work you will do

• Write realistic service or controls scenarios and explain the path from symptoms to a defensible diagnosis.
• Assess refrigeration, airflow, load or system-operation reasoning using the relevant technical and code context.
• Review answers for efficiency, safety and practical correctness, identifying advice that would damage equipment or create an exposure hazard. This is remote knowledge work.

Required background and routes

• EPA Section 608 certification and a state HVAC licence where applicable, plus at least two years in field installation, service or controls.
• Apply refrigeration-cycle, airflow and load-calculation knowledge and explain diagnostic reasoning in English.

Preferred background

• NATE or HVAC-contractor credentials; commercial refrigeration, building automation, heat pumps, geothermal or high-efficiency systems.

Deliverables

Submit the completed technical artifact or assessment with its supporting evidence, explicit assumptions, reproducible checks where applicable, and concise reasons for each material judgment. Address review findings within the agreed scope.

Location and schedule

Remote assignments are scheduled by agreement, with no guaranteed weekly volume. Availability planning can include 10 hours per week depending on the track. IXO confirms the applicable timing before work.

Pay and working terms

$55 $95/hr USD. The agreed hourly rate, scope, schedule and acceptance criteria are confirmed before work starts. Applying does not guarantee an assignment. Use public, licensed or otherwise authorized material only; do not submit confidential employer information, personal data or restricted research.