An AI Engineer is a professional who designs, develops, and deploys artificial intelligence systems to solve complex problems. They work with machine learning, deep learning, and data science to build intelligent applications. Their responsibilities include data preprocessing, algorithm optimization, and model evaluation. They collaborate with data scientists and software engineers to integrate AI into real-world applications, improving automation, decision-making, and user experiences. AI engineers are in high demand across industries like healthcare, finance, and technology, driving innovation and efficiency in various fields.