Sr. Machine Learning Engineer, ASR Infrastructure and Tools, Siri Speech

Sr.

Machine Learning Engineer, ASR Infrastructure and Tools, Siri Speech Cupertino, California, United States Machine Learning and AI Summary Posted:

Apr 16, 2026

Role Number:

200628190-0836 Want to join the team pushing the boundaries of AI and building an intelligent assistant that helps millions of people get things done? Join the Siri team at Apple! To build the best speech recognition models, we need to use the latest technology in distributed training and the best available data. We combine those needs into one team and are focused on blurring the lines between traditional "data processing" and "model training". Efficiently training on petabytes of audio data pushes us to consider the entire training stack while developing new models to extract useful signals from unprecedented volumes of data.

By joining our team, you'll have the opportunity to work with large and diverse datasets, iterate with research and production teams, and deliver voice based experiences to millions of users worldwide. Description The Siri Speech team is looking for exceptional individuals to extend the core technology that let Siri understand, learn, and remember. You will be part of a cross-functional team consisting of software engineers as well as data and machine learning engineers/scientists and having a large impact on the Siri product. This is a rare opportunity to apply distributed data engineering techniques at the intersection of various areas such as speech recognition, natural language processing, and dialogue management.

In this role you will

• Work with open source tools like PySpark, Jax, Ray and others
• Optimize how to move multi-modal data from various sources into complex model training pipelines
• Use open source models to extract signals from large volumes of speech data to drive modeling improvements Minimum Qualifications Experience processing large, complex, unstructured data Knowledge of distributed data processing frameworks (Beam, Spark, Dask, Ray) Strong software engineering abilities, ideally Python Strong interpersonal skills to work well with engineering teams Preferred Qualifications M.

S. or Ph.D. degree in Computer Science, or other technical discipline Machine Learning experience a plus Experience with optimizing and running large batch or training jobs on HPC-like clusters using GPUs or TPUs Speech understanding or generation experience a plus Strong data engineering background in speech and/or language/text/dialogue processing field Excellent problem solving and critical thinking Ability to work in a fast-paced environment with rapidly changing priorities Passionate about building extraordinary products and experiences for our users Pay & Benefits 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 $181,100 and $318,400, 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.

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. At Apple, we believe accessibility is a fundamental human right. You'll find that idea reflected in everything here — in our culture, our benefits and our digital tools. By welcoming as many perspectives as possible, we help you build a career where you feel like you belong. Apple accepts applications to this posting on an ongoing basis.