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Atria Health and Research Institute

Personalized preventive medicine practice and research

Senior AI Scientist

Natural Language Processing & LLMsConfirmed live in the last 24 hours
Full-timeRemote in USARemote

About the Job

Requirements

  • A graduate degree (PhD preferred; Master's with a strong research record) in computer science, machine learning, computational biology, biomedical informatics, or a closely related field, or a strong open-source track record in modern training and fine-tuning.
  • At least 4 years of hands-on experience training and fine-tuning modern deep learning models, with a track record of shipped or published models personally trained.
  • Current fluency with modern fine-tuning and post-training methods, including supervised fine-tuning, parameter-efficient fine-tuning such as LoRA, QLoRA, and adapters, preference tuning such as DPO and successors, distillation, and continued pre-training.
  • Strong working knowledge of the open-source model ecosystem, including assessing state-of-the-art models and determining what is worth fine-tuning for a given problem.
  • Strong Python and PyTorch skills, with hands-on experience in the Hugging Face ecosystem (Transformers, Datasets, PEFT, TRL, Accelerate) or equivalent training stacks.
  • Practical experience with training infrastructure, including distributed training, mixed precision, efficient data loading, and experiment tracking such as W&B or MLflow.
  • Discipline in evaluation and ablation, including benchmarking, calibration, and assessing model changes.
  • Genuine interest in healthcare and the responsibilities of building models that affect patient care.

Responsibilities

  • Own the medical modeling roadmap by identifying promising model families and training approaches and building models that improve clinical outcomes.
  • Survey general-purpose and clinical or biomedical foundation models, vision and multimodal backbones, and specialized medical models; recommend what to fine-tune, distill, or build on.
  • Design and validate new architectures when existing approaches fall short, particularly for longitudinal multimodal data and foundation models.
  • Lead fine-tuning and post-training work, including supervised fine-tuning, LoRA/QLoRA and other parameter-efficient fine-tuning methods, DPO and related preference-tuning approaches, reinforcement learning from human or AI feedback where appropriate, continued pre-training, and distillation.
  • Curate high-quality training datasets from clinical data, including sampling, labeling strategy, deduplication, contamination checks, train/test hygiene, and PHI-safe handling.
  • Design and run rigorous evaluations, including held-out clinical benchmarks, comparisons against frontier closed-source baselines, calibration analysis, subgroup performance, and ablation studies.
  • Run training and evaluation on appropriate single-node and multi-GPU infrastructure with experiment tracking, reproducible configurations, and clear logging.
  • Stay current with literature on training methods, fine-tuning techniques, medical foundation models, and multimodal architectures; synthesize the work relevant to Atria.
  • Collaborate with clinicians to define model quality and with research partners on joint training and evaluation work.

Desired Qualifications

  • Experience building multimodal medical models combining clinical text with imaging (radiology, pathology, or ophthalmology), structured laboratory data, or physiological signals.
  • Familiarity with clinical or biomedical foundation models such as Med-PaLM, MedGemma, BioMedLM, BiomedCLIP, and RadFM, and with medical model literature.
  • Peer-reviewed publications in machine learning, natural language processing, computer vision, or clinical informatics venues.
  • Experience with reinforcement learning, reasoning model training, or other frontier post-training techniques.
  • Experience with model interpretability and uncertainty quantification in clinical settings.
  • Prior collaboration with clinicians on models that shipped.

About the Company

Atria Health and Research Institute

Personalized preventive medicine practice and research

Atria Health and Research Institute delivers personalized preventive medicine through a membership-based clinical practice, while its nonprofit think tank, the Atria Research and Global Health Institute, advances preventive medicine through original research and strategic partnerships. How it works: it combines longitudinal studies with evidence-based, individualized care to move from reactive sick care to proactive prevention; it asks, “What is biologically possible?” and translates leading science into medical practice for patients. How it differs: it integrates a clinical practice with a global research effort focused on closing gaps in care, emphasizing collaboration, real-world implementation, and broad access to prevention-based medicine, rather than just offering standard treatment. Goal: prevent disease and extend healthy life for all by turning cutting-edge science into practical, scalable medical care.

Company size
201-500
Company stage
Not listed
Total funding
Not listed
Headquarters
New York City, New York
Founded
2022

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