Mobile Runtime Engineer Jobs

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Today

Senior Applied AI Engineer, Agent Tools & Capabilities

Apple Cupertino, CA

Cupertino, CA

Today

$150k - $278k/yr Full time Senior Ai Agent Engineering Artificial Intelligence

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Job Description

As a Senior Applied AI Engineer for Siri and Apple Intelligence, you will shape how agentic models reason, plan, and carry out actions across Apple’s ecosystem. You will own the end-to-end quality story and build the platform, runtime, and API abstractions that enable reliable agent capabilities under strict constraints.

Role Responsibilities

Develop and optimize the platform and runtime that power Siri while meeting strict latency, memory, and power constraints
Improve agent capabilities using systematic, data-driven experimentation
Lead a quality loop from early-stage feature development through hillclimbing based on field data
Collaborate with Apple app and frameworks teams to integrate their experiences into Siri and translate their requirements into platform direction
Work effectively in ambiguous, rapidly changing conditions in a frontier AI environment

Required Qualifications

Experience in prompt engineering, tool representation, or tool retrieval
Experience designing evals and improving model quality with data
Familiarity with App Intents or other Apple frameworks
Strong API design skills and a track record of building platforms for other developers
MS or PhD in Computer Science, Machine Learning, or a related field
Bachelor's degree in Computer Science, Machine Learning, or a related field, plus 3+ years of industry experience
Strong programming skills in Swift, C++, Objective-C, or Python
Hands-on experience shipping production systems built around LLMs
Knowledge of agentic systems, including planning, orchestration, and multi-step tool use
Ability to communicate and deliver in fast-moving, ambiguous environments

Technologies

Swift
C++
Objective-C
Python
LLMs
App Intents

Preferred Qualifications

Experience in prompt engineering, tool representation, or tool retrieval
Experience designing evals and improving model quality with data
Familiarity with App Intents or other Apple frameworks
Strong API design skills and a track record of building platforms for other developers
MS or PhD in Computer Science, Machine Learning, or a related field

Pay & Benefits

Base pay range: USD 150,400 - 277,600 per year
Discretionary employee stock programs, with opportunity to become an Apple shareholder
Eligible discretionary restricted stock unit awards
Employee Stock Purchase Plan: purchase Apple stock at a discount if voluntarily participating
Comprehensive medical and dental coverage
Retirement benefits
Range of discounted products and free services
Reimbursement for certain educational expenses, including tuition, for formal education related to advancing your career at Apple
Discretionary bonuses or commission payments, and relocation may be eligible
Learn more about Apple Benefits (as stated)

Additional Notes

Apple benefit, compensation, and employee stock programs are subject to eligibility requirements and other terms of the applicable plan or program. Base pay is determined within the posted range based on skills, qualifications, experience, and location.

Location

Cupertino, CA (onsite)

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