Senior Machine Learning Engineer, Search & Knowledge Platforms

Seattle Until 9/27/2026 8+ years exp First posted July 29, 2026 Last posted July 29, 2026
Job description

Do you want to make Siri and Apple products smarter for our users? The Answers, Knowledge & Information team is redefining how hundreds of millions of people use their devices to get information. We are an Applied ML team pushing the limits of apple intelligence, assistant response ranking, and search technologies, while also responsible for a production service. We are part of a wider effort to power information across a variety of Apple products – including Siri, Spotlight, Safari, Messages, Lookup, and more. In our team, you will be leveraging and improving upon the latest LLM/ML techniques in order to understand queries, rank user intents, rank documents, and generate answers to users’ questions. Our team is responsible for training and deploying these models at scale, using the latest advances for online inference optimization.

Description

As a member of our fast-paced group, you’ll have the unique and rewarding opportunity to shape upcoming products from Apple. Our team includes a diversity of backgrounds from applied machine learning engineers with a focus on ML and LLM to experienced distributed systems engineers. As such, we are looking for candidates with applied machine learning experience and strong software engineering skills.

Minimum Qualifications

8+ years of industry related experience, working in collaborate environments
Utilizing PyTorch, TensorFlow, and JAX for training and deploying deep learning models
Understanding product requirements and then translating them into modeling tasks and engineering tasks
Building models for search relevance ranking, query understanding, and summarization
BS or MS in Computer Science or related field

Preferred Qualifications

PhD in Computer Science, Artificial Intelligence, Machine Learning, Information Retrieval, Data Science or related field
Experience in RAG, LLM Reasoning, and LLM Agent
Experience working in a complex organization with multiple collaborators, strong track record in scaling and launching projects in this setting

About this role

Summary

Develops and deploys ML models for search relevance, query understanding, and summarization.

Job title

Senior Machine Learning Engineer, Search & Knowledge Platforms

Experience level

8+ years

Minimum experience

8+ years exp

Industry

software

Location requirements

Must be in Seattle or remote work allowed.

Salary

Not specified

Management role

No

Skills & keywords

Required skills

PyTorchTensorFlowJAXmodel trainingmodel deployment

Preferred skills

RAGLLM reasoningLLM agentscaling projects

Specializations

machine learningsearch relevancequery understandingLLMdeep learning
Locations

Structured locations inferred from the posting.

Seattle, WA, USA

Remote City