AI Scientist - Biomedical Multimodal Modeling

Xairatherapeutics · South San Francisco, California, United States · Data

Posted 2026-11-07

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We are building foundation models for biological systems, focusing on learning from complex, multimodal data. Our approach combines representation learning and generative modeling to capture structure, variation, and latent organization in high-dimensional settings. We work with both image-based data and high-dimensional molecular (omics) measurements, treating them as complementary views of the same underlying system. Our goal is to develop models that can both encode rich representations and generate or infer missing aspects from partial observations.

What You’ll Do

Develop multimodal foundation models spanning image and molecular data

Design approaches that unify representation learning and generative modeling

Train large-scale models on structured, high-dimensional datasets

Explore cross-modal alignment, prediction, and generation

Build scalable systems for data processing, training, and evaluation

Work in a research-driven environment with evolving problem definitions

What We’re Looking For

Strong background in deep learning, especially in modern architecture

Experience with representation learning (self-supervised, contrastive, masked modeling, etc.)

Experience with generative modeling (diffusion, autoregressive models, VAEs, or related approaches)

Proficiency in Python, ML frameworks, and CI/CD (PyTorch, JAX, etc.)

Relevant Experience

Work on multimodal learning or cross-domain representation learning

Experience with image data, molecular / omics-like data, or both

Familiarity with large-scale training

Bonus

Exposure to biological or scientific datasets

Experience with paired or partially aligned multimodal data

Comfortable working in open-ended, evolving problem spaces

Compensation

We offer a competitive compensation and benefits package, seeking to provide an open, flexible, and friendly work environment to empower employees and provide them with a platform to develop their long-term careers. A Summary of Benefits is available for all applicants. We offer a competitive package that includes base salary, bonus, and equity. The base pay range for this position is expected to be $252,000 - $308,000 annually with a total cash compensation up to $296,100 - $361,900; however, the compensation offered may vary depending on the market, job-related knowledge, skills and capabilities, and experience.

Xaira Therapeutics an equal-opportunity employer. We believe that our strength is in our differences. Our goal to build a diverse and inclusive team began on day one, and it will never end.

TO ALL RECRUITMENT AGENCIES: Xaira Therapeutics does not accept agency resumes. Please do not forward resumes to our jobs alias or employees. Xaira Therapeutics is not responsible for any fees related to unsolicited resumes

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