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Research Engineer - Agency and Reasoning

Open 62d

Zyphra is an artificial intelligence company based in San Francisco, California.

The Role:

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.

What We’re Looking For / 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.

Qualifications / Additional Skills:

  • 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

Why Work at Zyphra:

  • 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

Benefits and Perks:

  • 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

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What this application asks

ashby

Name, Email, Resume

  • LinkedIn Profile optional
  • Are you willing to work from our office in San Francisco, California full-time, 3+ days a week? yes / no
  • If you are not located near San Francisco, California, are you willing to relocate if offered employment? yes / no
  • Are you legally authorized to work in the United States for Zyphra? yes / no
  • Do you now, or will you in the future, require sponsorship for employment visa status (e.g., H-1B visa, etc.) or a visa extension in order to start or continue to work legally for Zyphra in the United States? yes / no
  • Why do you want to work for Zyphra? written answer
  • Why would you be a good fit for this role? written answer
  • Which one project most demonstrates the skills needed for this role and why? written answer · optional
  • Which one paper have you found insightful and why? written answer · optional
  • What is one technique or idea you want to test out at scale? written answer · optional
  • If you have any open-source work, what commit or project are you most proud of? written answer · optional
  • When is the earliest you would want to start working with us?

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