Principal Machine Learning Engineer (Reconstruction / Quantitative Imaging)

Posted 24 Days Ago
7 Locations
In-Office or Remote
Expert/Leader
Artificial Intelligence • Generative AI
The Role
Lead development of ML components for medical image reconstruction: define training/evaluation pipelines and metrics, productionize models (inference performance, monitoring, safe fallbacks), collaborate on hybrid physics-ML algorithms, and build tooling for experimentation and rigorous verification.
Summary Generated by Built In
What you’ll do
  1. Partner with medical image reconstruction scientists / engineers to build ML components that improve reconstruction quality, speed, robustness, or quantitative accuracy.

  2. Define training/evaluation pipelines, datasets, and metrics that map to user needs and design requirements.

  3. Productionize models: inference performance, reproducibility, monitoring for drift/regressions, and safe fallbacks.

  4. Collaborate on hybrid algorithms, incorporating physics and learned priors, denoisers, learned regularizers, and quality estimation.

  5. Help build tooling for rapid experimentation as well as rigorous verification of algorithm changes.

What we’re looking for
  • Strong applied ML experience plus comfort with signal processing / imaging or adjacent domains.

  • Ability to move fluidly between research prototypes and production-quality systems.

  • Strong evaluation discipline: metrics, ablations, data leakage avoidance, and reproducibility.

  • A demonstrated track record of applying ML to physics-based or inverse problems (i.e., shipped projects, a portfolio, or publications.)

Useful experience
  • ML for imaging/inverse problems (or adjacent) with strong evaluation discipline and comfort with GPU performance constraints.

  • Pragmatic production mindset: reproducible training/inference, regression testing, and safe deployment in high-stakes contexts.

  • A background in computational physics or scientific computing.

  • Leverage ML-based methods such as PiNNs and Neural Operators to solve partial differential equations arising in ultrasound simulation and imaging.

  • Experience in Agentic-SciML is a plus.

  • Hands-on experience with data curation for ML: building datasets from messy, real-world sources, defining ground truth, and managing labeling or simulation pipelines.

  • Background in data assimilation: combining observations with physics-based models (Kalman filtering, variational methods, ensemble approaches, or learned variants).

Skills Required

  • Strong applied machine learning experience with comfort in signal processing or medical imaging
  • Ability to move fluidly between research prototypes and production-quality systems
  • Strong evaluation discipline: metrics, ablations, data leakage avoidance, reproducibility
  • Demonstrated track record applying ML to physics-based or inverse problems (shipped projects, portfolio, or publications)
  • Experience with ML for imaging/inverse problems and GPU performance constraints
  • Pragmatic production mindset: reproducible training/inference, regression testing, safe deployment in high-stakes contexts
  • Background in computational physics or scientific computing
  • Experience leveraging PiNNs and Neural Operators for PDEs in simulation and imaging
  • Experience with Agentic-SciML
  • Hands-on experience with ML data curation: building datasets, defining ground truth, labeling or simulation pipelines
  • Experience with data assimilation methods (Kalman filtering, variational methods, ensemble approaches or learned variants)
Am I A Good Fit?
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The Company
HQ: San Francisco, California

What We Do

Midjourney is an independent research lab exploring new mediums of thought and expanding the imaginative powers of the human species.

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