MS or PhD in Computer Science, Human-Computer Interaction or equivalent degree 3+ years of experience in mixed-methods human factors research, especially in evaluating user interface designs Expert in qualitative and quantitative experimental design, statistical data analysis, and reporting Excellent listening, communication and interview skills in both individual and focus group settings Experience with human-in-the-loop evaluation, data annotation workflows, or AI/LLM model development including using data to improve model performanceProactive, curious, data-driven, and collaborative Published research in human-in-the-loop model evaluation, data annotation workflows, or human-AI interaction Proficient in data exploration and data analysis languages or tools such as SQL, Python, or R Studio Experience with using AI tools including composing prompts, developing skills, and validating AI-generated output Experience working with UX designers and software engineers to develop highly-usable and performant interfaces. You will work directly with the Apple design team, data scientists, machine learning engineers, and annotation specialists to research human performance and design solutions for users with diverse languages, cultures, and abilities.