Research Engineer Pretraining
AI safety and research company building reliable, interpretable, and steerable AI systems, including the Claude product family and developer platform.
Maintainer signals as of 9/23/2026
Funding history
About Anthropic
Anthropic PBC develops frontier AI systems and deploys them through Claude products and the Claude Platform, with a stated focus on safety, interpretability, and steerability.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will research and implement model architectures, algorithms, data processing, and optimizers. You will lead small research projects, design and analyze experiments, optimize large-scale training infrastructure, improve development tooling, and contribute from low-level optimizations through high-level model design.
Requirements
- Software engineering
- Python
- PyTorch
- Large-scale machine learning
- Language model
- Machine learning research
- Problem-solving
- Communication
Responsibilities
- Conduct research and implement model architecture, algorithm, data processing, and optimizer solutions
- Lead small research projects
- Design, run, and analyze experiments on large language models
- Optimize and scale training infrastructure
- Develop and improve development tooling
- Contribute to low-level optimization and high-level model design
Benefits
- Optional equity donation matching
- Generous vacation
- Parental leave
- Flexible working hours