About the Role Mercor is partnering with a leading AI lab to train frontier models on high-quality insurance reasoning data. We're hiring Multiline Property & Casualty Underwriters to design realistic risk-selection and underwriting scenarios, evaluate model outputs against established underwriting standards, and help shape how the next generation of AI reasons about insurability, pricing, coverage terms, and portfolio fit.
We welcome carrier, MGA, MGU, and program underwriters with experience across personal, commercial, or specialty P&C; products. Candidates should have direct authority or meaningful responsibility for evaluating and selecting risks.
What You'll Do Design realistic underwriting scenarios involving new business, renewals, exposure analysis, loss history, inspections, classification, pricing, limits, deductibles, exclusions, and referral decisions
Create work products such as underwriting assessments, quote rationales, information requests, declination explanations, renewal strategies, and risk-improvement requirements
Write "golden" reference responses at experienced underwriter quality
Grade AI-generated responses against structured rubrics for technical accuracy, consistency, risk judgment, and adherence to underwriting guidelines
Identify unsupported assumptions, inadequate risk differentiation, incorrect use of policy terms, and inappropriate acceptance or declination decisions




Provide written feedback the research team uses to improve model behavior
Participate in onboarding office hours and calibration sessions
You're a Valuable Fit If You Have 2+ years of professional P&C; underwriting experience
Have underwritten at least one major segment, such as personal lines, commercial property, general liability, commercial auto, package, umbrella/excess, professional liability, cyber, or another specialty line
Understand the underwriting lifecycle from submission and assessment through quotation, binding, renewal, and nonrenewal
Can explain how account characteristics, jurisdiction, peril, loss experience, and market conditions affect underwriting decisions
Demonstrate strong written reasoning, sound risk judgment, and high attention to detail
Can separate underwriting decisions from claims handling, brokerage advice, and actuarial portfolio analysis
Bonus Qualifications CPCU, AU, ARM, or comparable insurance designation
Multiline underwriting authority
E&S;, MGA/MGU, Lloyd's, or program-business experience
Catastrophe-exposed property or high-severity casualty experience
Experience with small commercial, middle-market, national-account, or high-net-worth segments
Role Highlights Minimum 20 hours per week (ideally 40+)
Role starts immediately, applications reviewed on a rolling basis

#J-18808-Ljbffr

📌 P&C Underwriter - Risk Specialist (Ontario)
🏢 Mercor
📍 Ontario