Principal ML Engineer: Build Global AI & Data Platforms

Company: Apple

Location: London

Posted: May 20th, 2026

Apple is seeking a Principal Machine Learning Engineer in Greater London to lead the design, fine-tuning, and deployment of large language models. The ideal candidate should have extensive experience in machine learning engineering with a proven track record of shipping ML-powered products. Responsibilities include architecting infrastructure for AI products, mentoring engineers, and ensuring compliance with Apple's high standards. Strong expertise in Python, Swift, and Java is required, along with knowledge of LLM customisation and alignment techniques. #J-18808-Ljbffr
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