Zyphra
Research Engineer - Agency and Reasoning
3mo ago
USASeniorreinforcement learningfine-tuningpreference-learning methodsdata engineeringsynthetic data generation
Core contributor to research and development in reinforcement learning and language models focusing on agency and reasoning.
Responsibilities
- As a Research Engineer - Agency and Reasoning , you will be a core contributor to Zyphra’s Agency and Reasoning Team. You will be involved with performing novel research in reinforcement learning, post-training, and human preference learning, and applying your ideas at scale to our next generation of language models.
Requirements
- Strong research taste and intuition
- The ability to work through a research project from conception to execution to write-up
- Strong implementation and prototyping skillset
- A researcher who can take an idea from conception to experimentation extremely quickly
- The ability to work well and cooperate with others in a high-paced research setting
- Curiosity, interest, and joy in understanding intelligence.
- Experience and aptitude with reinforcement learning, either in the context of language model reasoning or more classical RL tasks
- Experience with language-model-supervised fine-tuning and preference-learning methods, such as DPO and simPO.
- Experience with context-length extension methods
- A good intuitive ability to understand model behaviors and correct them through iterative fine-tuning
- Interest in grappling in detail with data and spending significant time involved in data engineering and synthetic data generation
- Postgraduate degree in a scientific subject (Computer Science, EE/EECS, Mathematics, Physics)
- Previously published machine learning research in well-respected venues
- Highly proficient with PyTorch and Python
- We are excited and able to rapidly learn new fields and implement new ideas
- Excellent communication and collaboration skills, and can work effectively on both research and engineering implementation at scale
Conditions
- Comprehensive medical, dental, vision, and FSA plans
- Competitive compensation and 401(k) plan
- Relocation and immigration support on a case-by-case basis
- In-office snacks and meals provided
- Unlimited PTO and company holidays
- In-person team in San Francisco with a collaborative, high-energy environment
Other
- Our research methodology is to make grounded, methodical steps toward ambitious goals. Both deep research and engineering excellence are equally valued
- We strongly value new and crazy ideas and are very willing to bet big on new ideas
- We move as quickly as we can; we aim to minimize the bar to impact as low as possible
- We all enjoy what we do and love discussing AI