← Back to all roles in the United States

San Mateo, United States

Research Scientist - Machine Learning

Raydar · San Mateo · United States

Salary
$200,000–$400,000 per year
Contract
Full time
Occupation
Data Scientist

Posted: 10/15/2026 · Last checked: 10/28/2026

Job description

Quoted in full from Raydar's job posting. Gavroche does not edit it.

About the company

Our client is a software company.

The role

Raydar is recruiting for this role on behalf of our client. Act as a senior individual contributor who defines and drives a research program on how machine learning systems keep improving after deployment. Collaborate with engineers to carry experimental results through to shipped features.

What you'll do

- Lead a new research program from the ground up, covering how models retain knowledge, adjust quickly and get better on their own.

- Guide technical direction as a senior contributor alongside a compact group of researchers and engineers.

- Turn promising ideas from the roadmap into running experiments quickly.

- Work with software and ML engineers to move findings into production, from building datasets through evaluation to integration into the product.

- Aim for meaningful advances and share results with the wider research community.

Requirements

What we're looking for

- A doctorate, or comparable hands-on experience, in a quantitative or technical discipline.

- About 3 to 7 years doing applied research, whether at a startup, a research lab or a large technology firm.

- A research background in models that learn continuously, adapt with little data, improve themselves or build memory. Work in reinforcement learning or agent systems alone does not meet this bar.

- Practical experience with post-training of large models, including supervised and reinforcement-based approaches.

- A history of turning research concepts into working production systems, ideally in an early-stage environment.

- Papers accepted at leading machine learning conferences or journals.

- Strong coding skills in Python, a major deep learning framework and large-scale multi-machine training.

- Energy for a fast-paced startup where you own outcomes.

- Ability to work on-site at the office.

Bonus points

- Prior time at a research lab, large technology company or leading AI developer.

- Experience applying post-training techniques to agents that handle long, multi-step tasks.

Benefits

Compensation and benefits

- Base salary: USD 200,000 to 400,000 per year

- Equity

Location and work model

- San Mateo, CA, United States

- On-site

- Full-time

From Gavroche data

Figures computed from live adverts on Gavroche; the job text above is the employer's.

Similar roles in San Mateo

200 open roles like this one; at most three per employer shown.

What data scientist adverts in the United States state

Middle half: 173,500 – 250,000 USD a year; median 209,000 USD.

From 367 adverts by 153 employers that state a salary, annualised.

How data scientist roles in the United States are worked

6% fully remote · 2% hybrid · 92% do not say

Of 164 adverts. An advert that does not state a work mode is counted as not saying, not as on-site.

New openings in San Mateo, by week

  1. 8/3/2026 11
  2. 8/10/2026 6
  3. 8/17/2026 8
  4. 8/24/2026 12
  5. 8/31/2026 17
  6. 9/7/2026 18
  7. 9/14/2026 16
  8. 9/21/2026 17
  9. 9/28/2026 18
  10. 10/5/2026 13
  11. 10/12/2026 36
  12. 10/19/2026 63
  13. 10/26/2026 27

262 openings over 12 weeks, by the week they were published.

Other roles at Raydar

749 open, including roles outside the United States.