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Apple Senior Machine Learning Engineer - Large 
United States, California, Sunnyvale 
574660792

08.06.2025
Your responsibilities will include:• Designing and implementing strategies for fine-tuning and adapting foundation modelsfor Siri's diverse use cases.• Developing efficient workflows for generating and curating large-scale datasets to trainrobust, domain-specific language models.• Optimizing training pipelines to reduce resource utilization while maintaining orimproving model performance.• Collaborating with multidisciplinary teams of researchers, software engineers, andproduct designers to integrate AI innovations into Siri's user experience.• Staying at the forefront of research in LLMs, NLP, and AI, and translating breakthroughsinto actionable improvements.
  • MSc or PhD in Computer Science, Machine Learning, or a related field. Equivalent
  • industry experience will also be considered.
  • Published research or significant contributions in the fields of LLMs, NLP, or AI is highly
  • Deep expertise in LLM fine-tuning and training: Experience with adapting and
  • optimizing large-scale language models such as GPT or BERT for specific tasks and
  • domains. Familiarity with model training optimization such as distributed training, low-
  • precision techniques, quantization.
  • Data generation and augmentation: Knowledge of synthetic data generation, active
  • learning strategies, and building robust datasets for model training.
  • Strong proficiency in Python and relevant ML frameworks (e.g., PyTorch,
  • HuggingFace).
  • Solid understanding of evaluation metrics for NLP tasks and experience in benchmarking
  • and optimizing model performance.
  • Proven ability to design scalable ML pipelines, including pre-processing, training, and
  • deployment in production environments.
  • Excellent problem-solving, analytical, and collaborative skills.
Note: Apple benefit, compensation and employee stock programs are subject to eligibility requirements and other terms of the applicable plan or program.