Six Figure Work

Research Scientist - Machine Learning

Extropic

Company websiteextropic.ai (Extropic, opens in new tab)

Base salary $150K  to $250K

Employer-published annual base salary, USD. Advertised base range in Boston, MA

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  • LocationBoston, MA
  • WorkplaceOn-site
  • Status at last checkSource accepting applications when checked
  • Last checked (3 min ago) · observed since

About this job

Extropic’s hardware massively accelerates certain kinds of probabilistic inference. Our ML team works on the science of training models in the thermodynamic paradigm, and we are looking for senior research and engineering talent to derive probabilistic ML theory, empirically demonstrate its scaling properties, and deploy performant models. Senior hires will be leading their own research direction and are therefore expected to quickly become experts across our abstraction stack, including the hardware, software, physics, and math.

Responsibilities

  • Collaborate with senior researchers, residents, engineers, and physicists to derive the theory of new probabilistic models and their learning rules, including energy-based models and diffusion models

  • Scale up experimentation infrastructure and optimize over the design space of models

  • Implement, visualize, and evaluate new architectures, training algorithms, and benchmarks

  • Publish papers, contribute to open source, and communicate design insights to our hardware team

  • Create production models for domain experts using customer data

Required Qualifications

  • Experience in scientific Python and at least one deep learning framework (PyTorch, JAX, TensorFlow, Keras)

  • Extremely strong foundations in probability and linear algebra

  • Familiarity with deep learning theory and literature, including theory of over-parameterization and scaling laws

  • Publications in top ML conferences (NeurIPS, ICML, ICLR, CVPR)

  • Experience training high-performance models, including familiarity with infrastructure (Slurm, Ray, Weights & Biases)

  • Experience deploying models, including familiarity with infrastructure (Ray, AWS, ONNX)

Preferred Qualifications

  • Experience designing probabilistic graphical models (PGM)

  • Experience training energy-based models (EBMs) or diffusion models

  • Experience with numerical methods in diffeq solvers

  • Experience with message passing or training graph neural networks (GNNs)

  • Strong theoretical background in information geometry

  • Strong theoretical background in random matrix theory

  • Strong grasp of computational Bayesian methods, including MCMC sampling methods and variational inference

This position will require access to information subject to control under U.S. export control laws and regulations, including the Export Administration Regulations (“EAR”). Please note that any offer for employment will be conditioned on authorization to receive controlled items.

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

Pay in context

This role's base floor ($150,000) is above 51% of the 140 Data & ML roles in Massachusetts listed on this site; 1 other lists the same floor. Their median floor is $149,000; the middle half runs from $126,750 to $177,600.

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 5 other live Extropic roles with the nearest advertised base floor
Chart as a table
This range next to 5 other live Extropic roles with the nearest advertised base floor
RolePublished base
Research Scientist - Machine Learning (this listing)$150K - $250K
Embedded Software Engineer$150K - $250K
Experimental Physicist$150K - $250K
Research Scientist - Machine Learning$150K - $250K
Senior Analog/Mixed Signal Engineer$160K - $300K
Principal Analog/Mixed Signal Engineer$200K - $325K

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

Observed changes

  1. First observed on the employer's board
  2. Began meeting the published-salary criteria
Observed since
Employer-stated posting date
2026-04-22
Where this pay comes from

Location as the employer wrote it: Boston

USD 150,000 – 250,000 · 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.