Six Figure Work

Principal Machine Learning Engineer (Reconstruction / Quantitative Imaging)

Midjourney

Company websitemidjourney.com (Midjourney, opens in new tab)

Base salary $290K  to $302K

Employer-published annual base salary, USD. Advertised base range in San Francisco, CA +1 more

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  • LocationSan Francisco, CA +1 more
  • WorkplaceOn-site
  • Status at last checkSource accepting applications when checked
  • Last checked (29 min ago) · observed since
All places named
  • San Francisco, CA
  • San Francisco Bay Area Hybrid

About this job

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).

Source: Midjourney on Ashby · View original posting (opens in new tab)

Pay in context

This role's base floor ($290,000) is above 89% of the 1,493 Data & ML roles in California listed on this site; 2 others list the same floor. Their median floor is $190,000; the middle half runs from $160,000 to $229,900.

Only jobs on this site count, and each one publishes a base salary of $100,000 or more, so this compares six-figure jobs with each other, not with the whole market. Computed Nov 6, 2026.

This range next to 6 other live Midjourney roles with the nearest advertised base floor
Chart as a table
This range next to 6 other live Midjourney roles with the nearest advertised base floor
RolePublished base
Principal Machine Learning Engineer (Reconstruction / Quantitative Imaging) (this listing)$290K - $302K
Principal Software Engineer$268K - $279K
Principal Electrical Engineer (Design Lead)$241K - $250K
Senior Machine Learning Engineer (Clinical Team)$237K - $250K
Senior Cloud / Data Engineer (Data / Reconstruction / HIPAA)$215K - $222K
Senior Mechanical Engineer (Medical)$185K - $193K
Hardware Physicist$155K - $159K

Same $100K to $400K scale as every card. All Midjourney roles · How to read the bar

Observed changes

  1. Began meeting the published-salary criteria
  2. First observed on the employer's board
Observed since
Employer-stated posting date
2026-06-30
Where this pay comes from

Location as the employer wrote it: San Francisco • San Francisco Bay Area Hybrid

USD 290,000 – 302,000 · 1 YEAR · Salary

Method
Structured pay field published by the employer
Checked
Rule set
us-base-v2

The employer's job board publishes this pay as a dedicated data field. We read the field directly; no interpretation was needed.

What we verified

  • The pay figures come from the employer's own listing, quoted exactly above.
  • The pay is an annual base salary in US dollars with a minimum of at least $100,000.
  • The role was publicly listed on the employer's job board when last checked.

We do not verify what the employer will actually offer, whether the employer is still recruiting for the role, or anything beyond what the employer published. Full methodology.