Machine Learning Engineer - AI Evaluation & LLM Systems

Join the team building the evaluation systems that enable Apple’s next generation of AI experiences. As a Machine Learning Engineer, you will develop scalable infrastructure, intelligent evaluators, and data-driven methodologies that measure and improve the quality of large language models and multimodal AI systems used across Apple products. You’ll partner closely with ML researchers, software engineers, and product teams to design novel evaluation techniques, analyze model behavior, and translate research into production-ready systems. This role requires strong engineering fundamentals, a passion for machine learning, and the curiosity to solve challenging problems at the intersection of AI, data, and software engineering. If you’re excited about building the tools that help define the future of AI quality at Apple, we’d love to hear from you. DESCRIPTION As a Machine Learning Engineer, you will build the systems that measure and improve the quality of AI experiences used by millions of people. You will develop machine learning models, evaluation frameworks, and scalable infrastructure that enable teams to understand model behavior, identify regressions, and accelerate the development of large language models and multimodal AI. Working closely with researchers, software engineers, and product teams, you will transform cutting-edge research into production-ready solutions, analyze large-scale datasets, and develop new approaches for benchmarking and improving AI quality. This is a unique opportunity to solve challenging technical problems at the intersection of machine learning, software engineering, and data, while helping shape the future of AI at Apple. MINIMUM QUALIFICATIONS MS, or PhD in Computer Science, Machine Learning, Electrical Engineering, or a related technical field, or equivalent practical experience. 1–2 years of industry experience, or equivalent academic or internship experience, developing machine learning or AI solutions. Proficiency in Python and familiarity with C++ or another object-oriented programming language. Experience with one or more machine learning frameworks such as PyTorch, TensorFlow, or JAX. Understanding of machine learning fundamentals, including supervised learning, model evaluation, and statistical analysis. Experience working with data processing, model training, or experimentation through coursework, research, internships, or industry projects. Strong analytical, problem-solving, and communication skills with the ability to collaborate effectively in a team environment. PREFERRED QUALIFICATIONS Experience with large language models (LLMs), multimodal AI, or generative AI through internships, research, or personal projects. Experience building software or machine learning projects using modern engineering practices (Git, testing, CI/CD). Familiarity with distributed computing, cloud platforms, or large-scale data processing. Publications, open-source contributions, or participation in machine learning competitions. MS or PhD specializing in Machine Learning, Artificial Intelligence, or a related field.