Senior AI Software Engineer, App Intelligence

Apple Inc.; San Francisco (CA); On-site; USD 150,000 - 278,000; Full time

Benefits offered by this job

Stock programs

Relocation assistance

Tuition reimbursement

Comprehensive benefits

Job summary

Apple Inc. in the San Francisco Bay Area is seeking seasoned AI Software Engineers to advance on-device app intelligence for Siri.

This role focuses on building the layer that lets apps contribute to smarter, faster interactions, with emphasis on performance and reliability across the OS. You will work with partners across app teams, define interfaces, and ship robust software that enables end-to-end experiences while maintaining strict on-device constraints.

Qualifications

• 4+ years of production software experience.
• Proficiency in Swift, Objective-C or C++.
• Experience designing tool and function-calling interfaces for large language models.
• Familiarity with agentic coding to boost engineering productivity.
• Strong problem-solving skills and cross-team alignment.
• Proven ability to excel in fast-paced teams.

Responsibilities

• Lead design and development of on-device Siri app intelligence features.
• Collaborate with app teams to expose capabilities to Siri.
• Define interfaces and architecture for the layer as it evolves.
• Write well-structured, debuggable, high-performance code.
• Diagnose end-to-end issues and drive measurable quality improvements.
• Contribute to evaluation and telemetry to prove impact.

Skills

4+ years experience

Swift Objective-C C++

LLM tool interfaces

Agentic coding tools

Problem solving

Cross-team collaboration

Job description

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

Do you want to build the layer that lets every app on the device do its best work for the user through Siri? App Intelligence is the on-device system that turns app capabilities into things a user can simply ask for — and makes the assistant reliable enough to be trusted with them. We are engineers, scientists, and problem solvers bringing smarter, faster, and more natural interaction with apps to Siri. We are looking for seasoned AI Software Engineers to join our team and be part of this mission.

Description

In this role, you will be at the forefront of developing software on device that enables Siri to deliver on app Intelligence throughout the OS. We bring app intelligence to Siri by working directly with app teams to understand what their apps can do, modeling those capabilities so an assistant can use them well, and building the on-device software that makes the resulting experiences reliable and fast. We partner closely with the team that builds Siri's planning and execution engine, and we work the app side of that partnership: what apps can offer, how they express it, and whether the resulting experience is good enough to trust.This is early work. How apps best expose themselves to an assistant is an open question — you will help answer it by designing the interfaces, proving them out with real app partners, and iterating as we learn. Expect real ambiguity, and expect to form your own view of the right architecture and defend it with working software and measured results.

Responsibilities

• Lead the design and development of software features that enable end to end app experiences in Siri
• Work directly with app teams to identify where intelligence makes their app better, and bring those capabilities to Siri
• Help define the shape of this layer and bring app partners along as it takes shape
• Implement code that is well designed, easy to debug, and highly performant
• Diagnose failures in end-to-end app experiences, and work with the Siri team to turn them into measurable quality improvements
• Contribute to the shared evaluation and telemetry loop that proves whether a change improved user outcomes
• Identify and propose key architecture changes to help features scale
• Proactively look for areas of code to further optimize for performance, and hold on-device latency, memory, and power budgets
• Leverage agentic coding to enhance engineering productivity, code quality, and efficiency at scale

Minimum Qualifications

• 4+ years experience developing and shipping production software
• Strong proficiency in Swift, Objective-C or C++
• Experience building product features on top of large language models — designing tool and function-calling interfaces, constructing context, and validating model output
• Fluency with agentic coding tools for accelerating engineering productivity, with good judgment about where to apply them and how to verify what they produce
• Exceptional problem-solving skills, and the ability to drive alignment across teams on shared API surfaces
• Proven ability to excel in a fast-paced development team

Preferred Qualifications

• Experience designing and developing systems that are efficient in resource constrained environments — latency, memory, and power budgets on device
• Experience building the scaffolding around models — tool interfaces, retrieval and context construction, output validation — with strong intuition for model behavior and failure modes
• Experience building key software components and APIs used cross functionally across different applications and platforms, including versioning and compatibility of interfaces that shipped clients depend on
• Experience with evaluation, benchmarking, and telemetry for systems whose output is probabilistic rather than deterministic

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 $150,400 and $277,600, 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. Learn more about your EEO rights as an applicant

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.