Research Engineer - Language Model Pre-Training

zyphraยท R&D - Engineering
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๐Ÿ“ San FranciscoFullTime

About this role

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

The Role:

As a Research Engineer - Language Model Pre-Training, you'll shape our language model roadmap through end-to-end pretraining development. You will work extremely closely with our pretraining team, who will integrate your insights into our next-generation models.

You'll Work Across:

  • Large-scale training runs and model parallelization

  • Performance optimization of our pretraining stack

  • Dataset collection, processing, and evaluation

  • Architecture and methodology research, including optimizer ablations

What We're Looking For / Requirements:

  • Strong engineering aptitude for rapidly implementing reliable and robust systems

  • Can rapidly learn new fields and are excited to implement new ideas

  • Excellent communication and collaboration skills, and can work effectively on both research and engineering implementation at scale

Qualifications / Additional Skills:

  • Deep expertise and intuition for solving machine learning problems and training models

  • Experience with training on large-scale (multi-node) GPU clusters

  • Deep understanding of model training pipelines โ€“ including model/data parallelism, distributed optimizers, etc.

  • Strong grasp of proper experimental methodology for running rigorous ablations and other hypothesis testing

  • Understanding of large-scale, highly parallel data processing pipelines

  • High proficiency with PyTorch and Python.

  • Strong ability to dive into large pre-existing codebases and rapidly get up to speed

  • Published machine learning research in well-respected venues is a plus

  • Postgraduate degree in a scientific subject (Computer Science, EE/EECS, Math, Physics)

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

Frequently Asked Questions

Is the salary disclosed for the Research Engineer - Language Model Pre-Training position at zyphra?
The salary for this Research Engineer - Language Model Pre-Training role at zyphra is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Research Engineer - Language Model Pre-Training position at zyphra located?
This Research Engineer - Language Model Pre-Training role at zyphra is based in San Francisco. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Research Engineer - Language Model Pre-Training role at zyphra full-time or part-time?
This is listed as a FullTime position. It is posted as a Research Engineer - Language Model Pre-Training role in the R&D - Engineering department at zyphra.
Which team or department does the Research Engineer - Language Model Pre-Training at zyphra belong to?
This Research Engineer - Language Model Pre-Training position is part of the R&D - Engineering department at zyphra. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Research Engineer - Language Model Pre-Training position at zyphra?
Click the "Apply Now" button on this page. You will be redirected to zyphra's official application portal hosted on ashby where you can submit your application directly.
When was the Research Engineer - Language Model Pre-Training job at zyphra posted?
This Research Engineer - Language Model Pre-Training position at zyphra was posted on Mar 17, 2026. Apply as soon as possible โ€” early applications are often reviewed first.
Research Engineer - Language Model Pre-Training
zyphra
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