Machine Learning Engineer, Siri Speech

San Francisco Bay Area, California, United States Machine Learning and AI

Are you excited about Generative AI and Large Language Models? Are you interested in working on cutting‑edge generative modeling technologies—plus the high‑quality data that fuels them—to enrich billions of people? Join the Siri Speech team at Apple! We are looking for an exceptional Senior ML engineer experienced in collecting and preparing large‑scale speech data, training / adapting models, and deploying them in production. You’ll advance the latest ML techniques, shape the datasets that power Siri, and dive into the details to craft experiences for millions of users worldwide.

Description

We are seeking a candidate with a consistent track record in applied ML engineering. Responsibilities in the role will include working with existing data pipelines and annotation teams to collect, clean, and analyze speech and multimodal datasets. Training large language and multimodal models on distributed back‑ends, and adapting them for on‑device deployment. Ensuring quality with an emphasis on data and model robustness. You will interact closely with other ML researchers, software engineers, and design teams. Your primary focus will still be enriching conversation understanding through LLM and multimodal models—now with added attention to the data that makes these models excel.

Minimum Qualifications

• 5–7 + years experience in Machine Learning applied to Speech & NLP.
• Hands‑on experience training LLMs, adapting pre‑trained LLMs for downstream tasks, and leveraging curated datasets or human‑feedback data.
• Familiarity with large‑scale data collection / processing (e.g., annotation guidance, data quality checks).
• Proficiency with ML toolkits such as PyTorch.
• Strong programming skills in Python and either C or C++.

Preferred Qualifications

At Apple, base pay is one part of our total compensation package and is determined within a range. This provides the opportunity to progress as you grow and develop within a role. The base pay range for this role is between $147,400 and $272,100, and your base pay will depend on your skills, qualifications, experience, and location.

Apple employees also have the opportunity to become an Apple shareholder through participation in Apple’s discretionary employee stock programs. Apple employees are eligible for discretionary restricted stock unit awards, and can purchase Apple stock at a discount if voluntarily participating in Apple’s Employee Stock Purchase Plan. You’ll also receive benefits including : Comprehensive medical and dental coverage, retirement benefits, a range of discounted products and free services, and for formal education related to advancing your career at Apple, reimbursement for certain educational expenses—including tuition. Additionally, this role might be eligible for discretionary bonuses or commission payments as well as relocation. Learn more about Apple Benefits.

Note : Apple benefit, compensation and employee stock programs are subject to eligibility requirements and other terms of the applicable plan or program.

Apple is an equal opportunity employer that is committed to inclusion and diversity. We seek to promote equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics. Learn more about your EEO rights as an applicant.

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