Staff / Sr. Machine Learning Engineer, AI, Search & Knowledge Platforms

Summary

Imagine what you could do here. At Apple, great ideas quickly become extraordinary products, services, and customer experiences. Bring passion and dedication to your work, and there’s no telling what you could accomplish.

Do you want to make Siri and Apple products smarter for our users? The Information Intelligence teams are building groundbreaking technology for algorithmic search, machine learning, natural language processing, and artificial intelligence. The features we build are redefining how hundreds of millions of people use their computers and mobile devices to search and find what they are looking for.

Within this organization, our group focuses on web-scale extraction and enrichment, transforming raw web content into structured, high-quality knowledge that powers Apple’s intelligent experiences. We design scalable extraction algorithms, develop advanced web data deduplication techniques, and apply machine learning to process trillions of records and petabytes of data. We also build and maintain Apple’s Knowledge Graph, integrating diverse data sources into a unified representation of the world knowledge.

We’re looking for a Machine Learning Engineer with deep expertise in large-scale data and ML infrastructure. You will build and optimize pipelines that extract, process, and serve data artifacts while advancing the ML frameworks and tooling that underpin Apple’s knowledge and search systems.

Description

Join a dynamic team within Apple's Information Intelligence Infrastructure organization that designs, builds, and operates large-scale systems powering search and AI experiences for billions of users. We develop distributed, data-intensive infrastructure that processes web data at global scale, enabling extraction, enrichment, and knowledge graph construction across diverse content such as HTML, PDF, and other unstructured formats.

Preferred Qualifications

Experience with training and fine-tuning large language models
Experience with optimizing ML training and serving performance, including GPU tuning, batch size optimization, and multi-node scheduling
Familiarity with Nvidia TensorRT-LLM, vLLM, Nvidia Triton Server, or similar inference frameworks.
Experience with NLP, information extraction, or web data systems.
Excellent interpersonal skills, able to work independently as well as in a team

Minimum Qualifications

Bachelor’s degree or higher in Computer Science or related technical field
3+ years of experience in software engineering or ML engineering
Experience with Golang, Java, Scala, or Python
Background in computer science: algorithms, data structures, and distributed systems
Experience working in a cloud-native environment such as AWS
Experience working with large-scale data processing pipelines (Spark, Cassandra, etc.)
Experience with micro-service architecture in a containerized environment (Docker, Kubernetes, etc.)
Experience with machine learning workflows, including feature engineering, training, evaluation, deployment and serving