Member of Technical Staff - Pre-Training
Reflection is an AI research lab building open frontier models and a full AI stack for developers, enterprises, and public-sector users.
Funding history
About Reflection
Reflection develops open-weight AI models, open-source software for customizing and running agents, AI-factory infrastructure, and related solutions. Its current research emphasizes large language models, reinforcement learning, and agentic reasoning.
Skills
About the Role
You will research and build solutions for algorithms, scaling laws, data processing, optimizers, and model architecture. You will run experiments on language-model scaling and data efficiency, implement deep learning methods, lead research projects, optimize training infrastructure, and contribute from low-level optimization through high-level model design.
Requirements
- Computer science
- Machine learning
- Software engineering
- ETL
- Training data
- Language model
- Distributed training
- Python
- PyTorch
- Deep learning
- Communication
Responsibilities
- Research and build solutions across algorithms scaling laws data processing optimizers and model architecture
- Design and run experiments on language model scaling and data efficiency
- Implement deep learning methods
- Lead small research projects
- Optimize training infrastructure for efficient scaling
- Contribute from low-level optimization through high-level model design
Benefits
- Stock options
- Medical insurance
- Dental insurance
- Vision insurance
- Life insurance
- Annual wellness allowance
- Daily office lunch and dinner
- 22 weeks of paid parental leave
- Unlimited paid time off in the U.S.
- 30 days of vacation in the U.K.
- Visa sponsorship
- Regular off-sites
- Happy hours
- Team celebrations