Principal Engineer, Truth Engine

Product.ai Principal Engineer, Truth Engine 3 Hours AgoSaved In-Office Metropolitan, CA, USA 350K-500K Annually Expert/Leader 350K-500K Annually Expert/LeaderArtificial Intelligence • Big Data • Consumer Web • eCommerceOwn the end-to-end verification system that determines whether shopping claims are true. Design and operate judge pipelines, calibration and abstention mechanisms, arbitration rulebooks, golden sets, regression corpora, and adversarial evaluations. Scale machine verdicts across millions of claims while maintaining a high accuracy floor against human-graded exams. Establish eval-driven shipping gates, control contamination, and define the seat’s success metric and decision authority with the founder. Work hands-on with models, agents, and verification infrastructure.Top Skills: Adversarial VerificationAi AgentsEval HarnessesGolden SetsLarge Language Models (Llms)Machine LearningRegression CorporaStatistical Calibration