Research Engineer / Research Scientist, Pre-training

Salary: CHF 280'000 - 680'000 per year

Requirements:

• Degree (BA required, MS or PhD preferred) in Computer Science, Machine Learning, or a related field
• Minimum education: Bachelors degree or an equivalent combination of education, training, and/or experience
• Required field of study: A field relevant to the role as demonstrated through coursework, training, or professional experience
• Minimum years of experience: Years of experience required will correlate with the internal job level requirements for the position
• Strong software engineering skills with a proven track record of building complex systems
• Expertise in Python and deep learning frameworks
• Experience working on high-performance, large-scale ML systems, particularly in the context of language modeling
• Familiarity with ML accelerators, Kubernetes, and large-scale data processing
• Strong problem-solving skills and a results-oriented mindset
• Excellent communication skills and ability to work in a collaborative environment
• Desirable attributes (youll thrive in this role if you):
• - Have significant software engineering experience
• - Are able to balance research goals with practical engineering constraints
• - Are happy to take on tasks outside your job description to support the team
• - Enjoy pair programming and collaborative work
• - Are eager to learn more about machine learning research
• - Are enthusiastic to work at an organization that functions as a single, cohesive team pursuing large-scale AI research projects
• - Have ambitious goals for AI safety and general progress in the next few years, and youre excited to create the best outcomes over the long-term

Responsibilities:

• Interact with many parts of the engineering and research stacks
• Conduct research and implement solutions in areas such as model architecture, algorithms, data processing, and optimizer development
• Independently lead small research projects while collaborating with team members on larger initiatives
• Design, run, and analyze scientific experiments to advance our understanding of large language models
• Optimize and scale training infrastructure to improve efficiency and reliability
• Develop and improve dev tooling to enhance team productivity
• Contribute to the entire stack, from low-level optimizations to high-level model design
• Sample Projects (examples of responsibilities):
• Optimizing the throughput of novel attention mechanisms
• Proposing Transformer variants and experimentally comparing their performance
• Preparing large-scale datasets for model consumption
• Scaling distributed training jobs to thousands of accelerators
• Designing fault tolerance strategies for training infrastructure
• Creating interactive visualizations of model internals, such as attention patterns

Technologies:

• AI
• Support
• Kubernetes
• Machine Learning
• Python

More:

About Anthropic
Anthropics mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers, engineers, policy experts, and business leaders working together to build beneficial AI systems.

About the team
We are seeking passionate Research Scientists and Engineers to join our growing Pre-training team in Zurich. We are involved in developing the next generation of large language models. The team primarily focuses on multimodal capabilities: giving LLMs the ability to understand and interact with modalities other than text.
In this role, you will work at the intersection of cutting-edge research and practical engineering, contributing to the development of safe, steerable, and trustworthy AI systems.

We encourage you to apply even if you do not believe you meet every single criterion. Because we focus on so many areas, the team is looking for both experienced engineers and strong researchers, and encourage anyone along the researcher/engineer spectrum to apply.

If you're excited about pushing the boundaries of AI while prioritizing safety and ethics, we want to hear from you!

The annual compensation range for this role is listed below.
Annual Salary: CHF 280,000 - CHF 680,000 CHF

Logistics
- Location-based hybrid policy: Currently, we expect all staff to be in one of our offices at least 25% of the time. However, some roles may require more time in our offices.
- Visa sponsorship: We do sponsor visas! However, we aren't able to successfully sponsor visas for every role and every candidate. But if we make you an offer, we will make every reasonable effort to get you a visa, and we retain an immigration lawyer to help with this.

Diversity & inclusion note
We encourage you to apply even if you do not believe you meet every single qualification. Not all strong candidates will meet every single qualification as listed. Research shows that people who identify as being from underrepresented groups are more prone to experiencing imposter syndrome and doubting the strength of their candidacy, so we urge you not to exclude yourself prematurely and to submit an application if you're interested in this work. We think AI systems like the ones were building have enormous social and ethical implications. We think this makes representation even more important, and we strive to include a range of diverse perspectives on our team.

Safety & recruiting note
Your safety matters to us. To protect yourself from potential scams, remember that Anthropic recruiters only contact you email addresses. In some cases, we may partner with vetted recruiting agencies who will identify themselves as working on behalf of Anthropic. Be cautious of emails from other domains. Legitimate Anthropic recruiters will never ask for money, fees, or banking information before your first day. If you're ever unsure about a communication, don't click any links-visit directly for confirmed position openings.

How were different
We believe that the highest-impact AI research will be big science. At Anthropic we work as a single cohesive team on just a few large-scale research efforts. And we value impact - advancing our long-term goals of steerable, trustworthy AI - rather than work on smaller and more specific puzzles. We view AI research as an empirical science, which has as much in common with physics and biology as with traditional efforts in computer science. We're an extremely collaborative group, and we host frequent research discussions to ensure that we are pursuing the highest-impact work at any given time. As such, we greatly value communication skills.

The easiest way to understand our research directions is to read our recent research. This research continues many of the directions our team worked on prior to Anthropic, including: GPT-3, Circuit-Based Interpretability, Multimodal Neurons, Scaling Laws, AI & Compute, Concrete Problems in AI Safety, and Learning from Human Preferences.

Come work with us!

last updated 45 week of 2026