**Summary**
The Personalized AI for Science (PAIS) team is at the forefront of machine learning and health science at Apple. We are a close-knit team of deeply technical AI/ML research scientists who incubate ambitious research ideas and develop new statistical/ML methodologies, ultimately in service of new Apple health and wellbeing applications. We are seeking a research scientist who combines deep learning (and/or signal processing) experience with a rigorous foundation in statistics. The ideal candidate is passionate about model robustness and scientific rigor, ensuring that the models we deploy meet the high evidentiary standards required of health applications.


**Description**
In this role, you will design, train, and adapt modern deep learning models on unique health data, and apply your statistical expertise to evaluate them rigorously — going beyond aggregate accuracy to interrogate model behavior across populations, distributional shifts, and clinically meaningful subgroups. You will be expected to engage substantively with health as an application area, developing the domain knowledge needed to ask the right modeling questions and evaluate models against the realities of clinical and wellbeing use. You will work closely with collaborators across research and product teams, and contribute to features that ultimately reach a billion Apple devices worldwide.


**Responsibilities**

- Designing, training, and adapting modern deep learning models and architectures on large-scale physiological and behavioral data
- Designing rigorous evaluation protocols, including subgroup analyses, robustness to distributional shifts, and characterization of failure modes
- Applying statistical methods (hypothesis testing, uncertainty quantification, causal inference, survival analysis) to draw defensible conclusions from observational health data
- Translating clinical and product questions into well-posed problem definitions
- Engaging with the academic community by publishing papers and presenting your work
- Collaborating with product teams across Apple to transition research into deployed health features

**Minimum Qualifications**

- Hands-on experience designing and training modern deep learning models and architectures, including foundation models, self-supervised pretraining, multimodality, and parameter-efficient adaptation
- Experience characterizing and improving the robustness of ML models under distributional shifts that are common in health data (subject variability, device heterogeneity, temporal drift)
- Strong foundation in statistics, with the ability to draw defensible conclusions from observational data
- Ability to design and execute non-trivial model evaluations beyond standard validation

**Preferred Qualifications**

- Proficiency in Python and modern ML/analysis stacks, including LLM-based coding and analysis
- Excellent communication skills, including the ability to present technical work to clinical and broad technical audiences
- Research or applied experience in deep learning and statistical modeling in the health domain (e.g. wearable devices, clinical studies, or electronic health records)
- Experience with one or more of: causal inference, survival analysis, time-series modeling, or longitudinal analysis
- Experience with rigorous evaluation methodology for ML in clinical or scientific settings, such as benchmarking under controlled distribution shifts, calibration analysis, or regulatory-grade validation
- Publications at venues such as NeurIPS, ICML, ICLR

At Apple, we're not all the same. And that's our greatest strength. We draw on the differences in who we are, what we've experienced, and how we think. Because to create products that serve everyone, we believe in including everyone. Therefore, we are committed to treating all applicants fairly and equally. We will work with applicants to make any reasonable accommodations.


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Role Number: 200664795-4170