This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Web Development Specialist – Freelance AI Trainer Project based in Brazil. As a Web Development Specialist – AI Trainer, you will use your front-end development expertise to help improve the accuracy, reasoning, and practical capabilities of advanced AI models. You will evaluate AI-generated solutions against real-world web development challenges, focusing on modern UI/UX design, responsive layouts, accessibility, and component architecture. Working on a flexible, remote freelance basis, you will assess code quality, test technical solutions, and identify errors across a wide range of web technologies. You will document reproducible issues and provide detailed explanations that help refine model behavior and evaluation methods. Your insights will contribute to building more reliable AI systems capable of supporting developers and designers across industries. This opportunity is ideal for an experienced web development professional who enjoys analytical problem-solving, technical experimentation, and shaping the future of AI.