Apple · Sunnyvale

Senior ML Engineer - Generative AI, Siri Agent Modeling

(w/m/d) · 15.5.2025

Description

As a senior machine learning engineer on the team, you will play a key role in our development. You will have responsibilities ranging from model design, implementation, training, model iteration, researching and experimenting with new ideas and evaluation. You will apply state-of-the-art generative AI and machine learning methods to continually advance Siri’s capabilities. At Apple you will have the opportunity to collaborate with many dynamic, cross-functional teams across research, product and software. The ideal candidate will have a passion for applied research, strong modeling skills, good software engineer skills and a desire to get things done. The team innovates on cutting edge generative AI and machine learning technology to deliver outstanding products to customers. If that appeals to you, we can’t wait to hear from you.

Qualifications

  • 5+ years of hands-on industry experience developing deep learning systems: training (and finetuning) models, designing model architectures, researching/experimenting with new ideas, defining and creating metrics, building datasets and performing error triages.
  • Deep understanding of Generative AI techniques/literature and proven track record of training (or deploying) LLMs/MLLMs to solve complex problems
  • Proficiency in Python and one of the deep learning frameworks (such as PyTorch, JAX, or Tensorflow)
  • Excellent communication: strong interpersonal, verbal and written skills
  • Masters or PhD in Computer Science, Machine Learning, Engineering or equivalent professional experience

Preferred Qualifications

  • Demonstrated experience with building AI agents, LLMs for tool use, and Multimodal-LLMs.
  • Experience using one or more of the following: Reinforcement learning, Distillation, RLHF fine-tuning, RAG/VectorDB, LLM uncertainty quantification.
  • Experience creating and maintaining large scale, robust machine learning systems and infrastructure for data, modeling and metrics for use in multi-person team setting.
  • Experience developing, shipping and improving machine learning models in a production environment or a solid publication record in top-tier conferences like NeurIPS, ICML, ICLR, ICRA etc.

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 $207,800 and $312,200, 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.

Application

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