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AtriaPosted 2 months ago

Senior AI Scientist

$180,000–$180,000 year

RemoteUnited States

Full TimeSenior LevelDoctorate Or Professional DegreeSmall

Job Summary

Senior AI Scientist at the Atria Health Institute responsible for owning the medical-modeling roadmap and developing domain-specific clinical AI models as well as foundation models for preventive medicine. Work encompasses multi-modal longitudinal data (e.g., whole-genome sequencing, advanced imaging, comprehensive labs, wearable signals, and family-linked records), turning open-source components into clinically impactful models, designing novel architectures when needed, and guiding fine-tuning, post-training, and evaluation. Collaborate with clinicians to define good clinical outcomes and align research with real-world healthcare delivery, applying SFT/LoRA/QLoRA, DPO/RLAIF, RLHF, and distillation within robust experimentation pipelines, while staying current with the literature and ensuring PHI-safe data handling.

Required Qualifications

  • What you'll bring
  • A bias toward shipping models, not papers about models. You would rather have a working v1 in front of clinicians next month than a beautiful methodology that ships next year.
  • A scrappy streak. You can pick up an unfamiliar fine-tuning technique, training framework, or clinical concept on a Wednesday and have a credible experiment running by Friday.
  • A serious drive to keep getting better. You read other people's code, papers, training logs, and post-mortems. You treat being wrong as cheap information.
  • Graduate degree (PhD preferred, Master's with 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.
  • Hands-on experience training and fine-tuning modern deep learning models, with a track record of shipped or published models you personally trained: 4+ years.
  • Deep, current fluency with modern fine-tuning and post-training methods: SFT, PEFT (LoRA, QLoRA, adapters), preference tuning (DPO and successors), distillation, and continued pre-training.
  • Strong working knowledge of the open-source model ecosystem: which models are state of the art, which are overrated, and what's worth fine-tuning for a given problem.
  • Strong Python and PyTorch, with hands-on experience with the Hugging Face ecosystem (transformers, datasets, PEFT, TRL, accelerate) or equivalent training stacks.
  • Practical experience with training infrastructure: distributed training, mixed precision, efficient data loading, experiment tracking (W&B;, MLflow, or similar).
  • Discipline around evaluation and ablation: you treat benchmarking, calibration, and "what would this have looked like without that change?" as part of the modeling work.
  • Genuine interest in healthcare and the responsibility that comes with building models that affect patient care.

Desired Qualifications

  • Experience building multimodal medical models, combining clinical text with imaging (radiology, pathology, ophthalmology), structured labs, or physiological signals.
  • Familiarity with clinical/biomedical foundation models (e.g., Med-PaLM, MedGemma, BioMedLM, BiomedCLIP, RadFM) and the medical model literature.
  • Peer-reviewed publications in ML, NLP, 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 for clinical settings. …

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