Time since we first saw it
Day 156
Up longer than most. Similar jobs usually come down between day 7 and day 56.
From 10,198 similar postings that came down. Coming down is not always a hire.
Berlin; Montreal
Open 5 months, first seen by us 156 days agoPropose, design, and implement novel ML models for complex AI safety problems
Adapt and fine-tune existing frontier models for specific settings
Design experimental protocols and evaluation frameworks for reproducible results
Analyze experimental data to steer future research questions
Benchmark and optimize model performance and compute efficiency with ML engineers
Propose, design, and implement novel ML models tailored to solve complex AI safety problems.
Adapt and fine-tune existing frontier models to enhance their applicability to specific settings.
Design and implement experimental protocols and evaluation frameworks to validate hypotheses and ensure robust and reproducible results
Analyze and interpret experimental data in order to steer future research questions and objectives.
Benchmark and optimize model performance and efficiency along with ML engineers
Required skills and qualifications - Advanced degree in a relevant field (e.g., Computer Science, Mathematics). A PhD is preferred but not required if the candidate demonstrates exceptional abilities. - 5+ years of experience in deep learning research projects, in particular with frontier models.
We welcome applications from highly qualified individuals interested in working towards our mission in a respectful, inclusive and collaborative setting.
In the employer’s words · Read in context
Open 5 monthsWe first saw this posting 156 days ago and it is still up. Roles open this long are often slow to fill or kept open to collect applications.
These dates show when we found the posting. Check the employer’s website to confirm it is still accepting applications.
Day 156
Up longer than most. Similar jobs usually come down between day 7 and day 56.
From 10,198 similar postings that came down. Coming down is not always a hire.
5 open jobs
Open jobs by the week we first saw them, last 12 weeks.
Add your resume and we’ll mark which of these tools you already use, and point out anything in the posting that could rule you out.
- Expertise in the integration and use of ML libraries such as PyTorch, TensorFlow, or JAX for the development, training, and evaluation of ML models, ideally in distributed computing environments. - Strong experience in Python software development, in the use of version control, collaboration tools, and experiment management and tracking tools. - Strong communication skills, both written and verbal, with the ability to exchange ideas with researchers across different disciplines.
- Proven experience in the training, adaptation, and/or fine-tuning of frontier models across a variety of complex scenarios that involve, for example, transfer learning, domain adaptation, or meta learning. - Expertise in the integration and use of ML libraries such as PyTorch, TensorFlow, or JAX for the development, training, and evaluation of ML models, ideally in distributed computing environments. - Strong experience in Python software development, in the use of version control, collaboration tools, and experiment management and tracking tools.
Complete your application on job-boards.greenhouse.io. The employer’s form will show what is required.
Already applied? Track this application
New Data Scientist postings at the employers we follow are down 3% over the last 5 weeks compared with the 5 before.
Each bar is one week of new postings. The darkest bars are the last 5 weeks.
Counted from the hiring pages we’ve followed for at least five weeks, so employers we add don’t look like growth. Updated weekly.
We file this job under Data Scientist, by the work the posting describes.
Data scientists use statistics and models to answer harder questions, such as whether a change worked, what demand will look like next quarter, or which customers are likely to leave.
Postings usually ask for Python or R, SQL, statistics, experiment design and common machine learning methods.
Unlike an ML engineer, a data scientist's main output is often an analysis or a first model, not software running inside a product.
Source: US Bureau of Labor Statistics, Occupational Employment and Wage Statistics (May 2025) and Employment Projections (2025 to 2035). Occupation code 15-2051.
We are seeking a Senior Machine Learning (ML) Research Scientist to join our team working on a novel AI safety agenda. In this role, you will design and implement innovative ML models aimed at solving advanced AI safety problems.
Key responsibilities
Required skills and qualifications
About LawZero
LawZero is a non-profit organization committed to advancing research and creating technical solutions that enable safe-by-design AI systems. Its scientific direction is based on new research and methods proposed by Professor Yoshua Bengio, the most cited AI researcher in the world. Based in Montreal, LawZero’s research aims to build non-agentic AI that learns primarily to understand the world rather than to act in it, giving truthful answers to questions based on transparent and externalized probabilistic reasoning. Such AI systems could be used to accelerate scientific discovery, to provide oversight for agentic AI systems, and to advance the understanding of AI risks and how to avoid them. LawZero believes that AI should be cultivated as a global public good—developed and used safely towards human flourishing. For more information, visit www.lawzero.org
You belong here
At LawZero, diversity is important to us. We value a work environment that is fair, open and respectful of differences. We welcome applications from highly qualified individuals interested in working towards our mission in a respectful, inclusive and collaborative setting.
Your personal information will be collected and processed by LawZero to evaluate your application for employment in compliance with our Privacy Policy. Under privacy laws in force in your country of residence, you may have several privacy rights, such as to request access to your personal information or to request that your personal information be rectified or erased. Details on how you can exercise your rights can be found in our Privacy Policy.
Selected passages from the saved posting. Check the full description for conditions and exceptions.
No pay amount identified in the saved description.
Berlin; Montreal
Working pattern and location restrictions need checking in the full posting.
No clear work-authorization passage found. Eligibility is unconfirmed.