Research Scientist - Machine Learning
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
You apply on the employer's own site. Six Figure Work does not handle applications.
- 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 listingResearch Scientist - Machine Learning$150K to $250K
Embedded Software Engineer$150K to $250K
Experimental Physicist$150K to $250K
Research Scientist - Machine Learning$150K to $250K
Senior Analog/Mixed Signal Engineer$160K to $300K
Principal Analog/Mixed Signal Engineer$200K to $325K
Chart as a table
| Role | Published 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 |
Observed changes
- First observed on the employer's board
- 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.
