Senior Machine Learning Engineer, Personal Search Intelligence - Proactive

Cupertino Until 9/21/2026 First posted July 23, 2026 Last posted July 23, 2026
Job description

Do you believe that intelligent search can fundamentally change how people interact with their devices? Are you excited by the possibility of helping users effortlessly find and connect with their personal information? Come join the team within Apple's Proactive Organization that is building the next generation of Personal Search Intelligence.

Description

The Personal Search Intelligence team develops and ships privacy-respecting, cutting-edge AI features for Apple Intelligence, delivering exceptional experiences to hundreds of millions of users worldwide. We are looking for an experienced Machine Learning Engineer to join our team and be part of this mission.

Minimum Qualifications

Masters or Ph.D. in Computer Science, Electrical Engineering, Applied Mathematics, or a related field
Strong machine learning and deep learning fundamentals
Hands on experience with large language models (LLMs), prompt optimization, and fine tuning of LLMs
Hands on experience with automated evaluation frameworks for agentic workflows
Strong programming and software engineering experience in one or more of the following languages: Python, C, C++, Swift

Preferred Qualifications

Extensive experience with evaluation data and frameworks
Extensive experience with personal search
Experience with large vision-language and multi-modal foundation models

About this role

Summary

Develop AI features for personal search, focusing on privacy, evaluation, and language models.

Job title

Senior Machine Learning Engineer, Personal Search Intelligence - Proactive

Experience level

senior level

Industry

software

Location requirements

Candidate must be located in Cupertino, no remote work mentioned.

Salary

Not specified

Management role

No

Skills & keywords

Required skills

machine learningdeep learningPythonCC++Swift

Preferred skills

evaluation frameworkspersonal searchvision-language modelsmulti-modal models

Specializations

machine learningdeep learninglarge language modelsprompt optimizationfine tuning
Locations

Structured locations inferred from the posting.

Cupertino, CA, USA

On-site City