AI Trainer - Mechanical Engineers About Prolific Prolific is not just another player in the AI space – we are building the biggest pool of quality human data in the world. Over 35,000 AI developers, researchers, and organizations use Prolific to gather data from paid study participants with a wide variety of experiences, knowledge, and skills. The role We’re looking for Mechanical Engineers to help train and evaluate cutting-edge AI models. If you have the necessary experience, we’ll send you a quick test to assess your skills and suitability for AI tasks. If successful, you’ll be invited to join Prolific as a Domain Expert participant, where you’ll get paid to train and evaluate powerful AI models. Researchers looking for your skills tend to pay $40-$75p/h per AI task completed. You must be prepared to complete paid tasks that require one hour of uninterrupted work, though many are shorter. What you’ll bring - Verified status as a mechanical engineer (e.g., by providing a professional profile that shows both educational and professional experience) - Recent clinical experience and comfort evaluating clinical reasoning and decision-making - Willingness to complete a short skills/eligibility screener to join our Domain Expert pool - Strong attention to detail and the ability to focus on complex tasks for up to one hour - A reliable, fast internet connection and access to a computer - Willingness to self-declare earnings (participants are self-employed) - A PayPal account to receive payments from our clients What you’ll be doing in the role - Reviewing AI-generated responses to engineering scenarios and rating them for accuracy, appropriateness, safety, and reasoning quality - Comparing multiple model answers and selecting/justifying the best response - Writing improved exemplars, rationales, or structured feedback to help models learn where they fall short