Apple

Staff Applied Scientist, UI Control Models

Apple$130K — $180K *
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • Masters or PhD in Computer Science, Machine Learning Engineering, or equivalent experience.
  • 7+ years of hands-on industry experience with a track record of shipping ML-powered products, preferably using LLMs.
  • Extensive knowledge in model architectures, data curation, training policies and evaluation within the ML development loop.
  • Deep expertise in LLM and VLM post-training methods like supervised fine-tuning and reinforcement learning.
  • Proficiency in Python and familiarity with deep learning frameworks such as PyTorch, JAX, or TensorFlow.
  • Strong interpersonal, verbal, and written communication skills.

Responsibilities

  • Drive the design, development, and delivery of large language models for Siri.
  • Lead research and engineering efforts in model post-training techniques for UI control and conversational modeling.
  • Collaborate with researchers, software engineers, and product teams to transition innovations from prototype to production.
  • Identify and apply effective post-training techniques to enhance model efficiency.
  • Contribute to the full lifecycle process of model development, from inception to implementation.
  • Set technical direction for the team promoting a culture of rapid iteration and impact-oriented results.

Benefits

  • Collaborative environment with cross-functional teams.
  • Opportunities for hands-on innovation and impact.
  • Focus on rapid iteration and meaningful outputs.
  • Engagement in cutting-edge research and applied technology.
Full Job Description
In this role you'll drive the design, development and delivery of large language models that power the core of Siri. You will lead research and engineering efforts in model post-training techniques that create powerful UI control, tool calling and compelling conversational models that run within the constraints of mobile hardware.

You'll collaborate closely with researchers, software engineers and product teams to move innovations from prototype to production. This includes identifying and applying post-training techniques, advancing model efficiency and contributing to the end-to-end model lifecycle process.

This position emphasizes technical leadership through action, hands-on innovation and impact. You will be responsible for setting technical directions for the team. Our team values rapid iteration and delivering impactful results. The ideal candidate will have a passion for applied research, strong modeling expertise, good software engineering skills and a desire to get things done.

Minimum Qualifications

Masters or PhD in Computer Science, Machine Learning Engineering or equivalent professional experience

7+ years of hands-on industry experience and a proven track record of shipping ML-powered products or features, ideally involving LLMs. Extensive experience with the ML development loop, with expertise in model architectures, data curation, training policies and evaluation.

Deep expertise in LLM/VLM post-training methods, including supervised fine-tuning, and reinforcement learning.

Proficiency in Python and one of the deep learning frameworks (such as PyTorch, JAX, or TensorFlow).

Excellent communication: strong interpersonal, verbal and written skills.

Preferred Qualifications

Experience developing AI agents capable of complex reasoning, planning, tool use and UI control in diverse environments.

Experience developing small LLMs for constrained or edge devices.

Experience building thoughtful benchmarks and environments to evaluate UI control agents.

Deep understanding of model efficiency and deployment trade-offs in production environments.

Experience with multi-modal foundation models.

Experience developing ML systems for natural language understanding or digital assistants.

About Apple

Apple is a corporation that designs, manufactures, and markets mobile communication and media devices, personal computers, portable digital music players, and sells a variety of related software, services, peripherals, networking solutions, and third-party digital content and applications. Apple provides many products and services, including iPhone; iPad; iPod; Mac; Apple TV; a portfolio of consumer and professional software applications; the iOS and OS X operating systems; iCloud; and accessories, service, and support offerings. It sells its products worldwide through its retail stores, online stores, direct sales force and third-party cellular network carriers, wholesalers, retailers, and value-added resellers to the consumer and also sells third-party iPhone, iPad, Mac and iPod compatible products, including application software and accessories through its online and retail stores. Introduced in 1984, the Macintosh was the first widely sold personal computer with a graphical user interface (GUI). That feature and others such as an improved floppy drive design and a low-cost hard drive that made data retrieval faster helped Apple cultivate a reputation for innovation. Apple was named as the most admired company in the United States in 2008 and in the world from 2008 to 2012 by the Fortune magazine. The company was founded by Steven Paul Jobs, Steve Wozniak, and Ronald Gerald Wayne on April 1, 1976, and is headquartered in Cupertino, California.

Apple Careers

Join Apple, a place where extraordinary people gather to do their best work. Our ever-expanding global team is at the forefront of innovation and leadership in the tech industry. At Apple, we're not just building products—we're crafting the kind of wonder that revolutionizes entire industries. It's the diversity of our people and their ideas that inspires the innovation that runs through everything we do, from amazing technology to industry-leading environmental efforts. Work You’ll Do Embark on a journey with Apple’s market-leading team to help some of the world’s most influential companies navigate their path to digital mastery with cutting-edge technology and services. Transform industries and touch lives with your unique ideas at Apple. Here, you’ll lead through a unique position at the intersection of technology, creativity, and robust industry expertise. Collaborate with a global team of professionals who are at the top of their game in technology and design. Apple isn’t just a company, it’s a community of innovators and passionate thinkers. Introducing the Apple Innovation and Leadership Initiative We are building a market-leading team to drive our efforts in delivering groundbreaking solutions and services. At Apple, job opportunities are abundant, offering you the chance to explore diverse roles from engineering to marketing, all designed to empower your career growth. Do Innovative Work Join the largest group of creative and technical experts in the world—professionals dedicated to redefining what’s possible through technology and innovation. Deliver targeted solutions through a depth and breadth of expertise that’s unmatched, driving forward our commitment to excellence and leadership in every project we undertake. Be Part of a Great Team Engage in a wide range of projects utilizing Apple’s technology and resources. Harness the unparalleled capabilities, global scale, and joint solution development that only Apple can offer. Future-Proof Your Career Advance your career with limitless opportunities at Apple. Go as far as your ambition takes you with unmatched training, development, and certification support. Explore Discover how Apple is leading the way in tech innovation: [With iOS] Businesses can streamline operations and enhance customer interactions... READ MORE Smart home technology integration that sets the standard for convenience and security... READ MORE The Apple Experience Our combined service capabilities, global scale, and joint solution development help clients overcome challenges and lead transformation in their industries. Clients worldwide look to Apple for new strategies and solutions that drive growth and innovation in the digital era. Stay Connected Join Our Team Search open positions that match your skills and interests. We look for passionate, curious, creative, and solution-driven team players. Whether you’re seeking a professional role, an internship, or a leadership position, Apple offers a variety of employment opportunities. SEARCH APPLE JOBS Keep Up to Date Stay ahead with career tips, insider perspectives, and industry-leading insights you can put to use today—all from the people who work here. READ CAREERS BLOG Job Alert Emails Personalize your subscription to receive job alerts, latest news, and insider tips tailored to your preferences. See what exciting and rewarding opportunities await at Apple, a company committed to diversity, innovation, and leadership. Explore job opportunities, employment benefits, and the culture of growth and innovation at Apple. Prepare your resume, hone your interview skills, and ready yourself for a career at one of the most prestigious companies in the world. Join us in pushing the boundaries of what is possible.
Learn more about Apple
Size
154,000 employees
Market Cap
$2,074.3 billion
Industry
Net Income
$63.9 billion
Founded
1976
5 Year Trend
+11.5%
Revenue
$294.1 billion
NASDAQ

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