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Staff AI Software Engineer, Siri Core Modeling

Apple

Apple

Software Engineering, Data Science
Sunnyvale, CA, USA
Posted on Feb 24, 2026
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Do you have a passion for building the software platform on device that enables Siri to deliver intelligent experiences throughout the OS? We are engineers, scientists, and problem solvers working on bringing smarter, faster, and more natural human interaction capabilities to Siri. We are looking for a seasoned AI Software Engineer to join our team and be part of this mission.
In this role, you will be at the forefront of developing the software platform on device that enables Siri to deliver on Apple Intelligence throughout the OS.
  • Lead the design and development of software features that enable end to end Siri experiences
  • Implement code that is well designed, easy to debug, and highly performant
  • Proactively look for areas of code to further optimize for performance
  • Develop software that interfaces with LLMs and on-device intelligence to enhance Siri capabilities
  • Leverage LLMs and AI assistants to enhance engineering productivity, code quality, and efficiency at scale
  • 8+ years experience in developing and shipping production software
  • Strong proficiency in C++, Objective-C, or Swift
  • Strong understanding of software design principles, OS internals, concurrency and multi-threading, and memory management
  • Strong familiarity with Large Language Models (LLMs) and AI Assistants
  • Exceptional problem-solving and interpersonal skills
  • Proven ability to excel in a fast-paced development team
  • Experience designing and developing systems for resource constrained environments
  • Experience working on AI software runtimes
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 $212,000 and $386,300, 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.

Apple accepts applications to this posting on an ongoing basis.

Apply now
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