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Zyphra

Research Engineer - Audio & Speech Models

San Francisco
Level
Mid
Work type
On-site · San Francisco

Not stated in the posting: salary, visa.

Open. First seen 2 October 2026.

About the role

Zyphra's standard text

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

The Role:

As a Research Engineer - Audio & Speech Models, you will be a core contributor on Zyphra’s Audio Team, building the next generation of open-source autoencoders, ASR, TTS, SSL, and speech-to-speech models. You will be deeply involved in the entire model training process, from data gathering and processing to designing novel architectures and training methodologies.

You’ll Work Across:

  • Large-scale audio training runs
  • Performance optimization of our training stack
  • Audio dataset collection, processing, and evaluation
  • Architecture and training methodology ablations and improvements

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 ability (can take an idea from conception to experimentation quickly)
  • The ability to work well with others in a high-paced research setting
  • Excellent communication and collaboration skills, and can work effectively on both research and engineering implementation at scale

Qualifications / Additional Skills:

  • Expertise and intuition for training models in the audio domain, including text-to-speech, ASR, speech-to-speech, speech-emotion-recognition, or other models
  • Experience in training audio autoencoders
  • Understanding of signal processing, especially of audio signals
  • Experience with diffusion models, consistency models, or GANs
  • Experience with training on large-scale (multi-node) GPU clusters
  • Strong grasp of proper experimental methodology for running rigorous ablations and other hypothesis testing
  • Understanding of and interest in large-scale, highly parallel data processing pipelines
  • Proficiency with PyTorch and Python
  • Experience contributing to large pre-existing codebases and rapidly getting up to speed
  • Previously published machine learning research in well-respected venues
  • Postgraduate degree in a scientific subject (Computer Science, EE/EECS, Mathematics, Physics, Machine Learning)
Zyphra's standard text

Why Work at Zyphra:

  • Our research methodology is grounded in methodical, step-by-step approaches to 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

What this role asks for

In most of Zyphra's ads

Machine Learning · Python

Named in most of its open postings, whatever the role.

79% of this description is written for the role. The rest is Zyphra's standard text, folded away below.

Read against Zyphra's other open postings on this site.

The team: R&D - Engineering HIRES STEADILY

This role is one of 9 open in R&D - Engineering. 2 were posted in the last 30 days and the oldest in March: a team that hires all year rather than one being built.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

Machine Learning (8 of 9), Python (8 of 9), PyTorch (7 of 9), AWS (2 of 9), CUDA (2 of 9)

OTHER ROLES ON THIS TEAM

From the team and dates on Zyphra's own job board.

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