Zyphra
Research Engineer - Model Architectures
San Francisco
Get past the screening software and onto a recruiter's desk
hirly rewrites your resume for this job — matching the keywords and skills in the posting, moving your most relevant experience to the top, and writing a cover letter to fit. About 30 seconds.
- Keywords matched to this posting
- Fit score before you apply
- Cover letter included
Matched against 2.3M live jobs from 200,000+ employers in 200+ countries.
Tailor my resume for this job →hirly's read of this role
- Seniority
- Mid level
- Country
- US
- Work mode
- On-site / unstated
- First seen by hirly
- 11 Sept 2026
Derived automatically from the posting. Upload your resume above to see how the role scores against it.
the posting
Zyphra is an artificial intelligence company based in San Francisco, California.
The Role:
As a Research Engineer - Model Architectures , you will be a core contributor to Zyphra’s AI Architecture Research Team. This will involve designing and rigorously testing novel model architectures and training methodologies, with a focus on improving core modeling capabilities (e.g., loss per flop or loss per parameter) and addressing fundamental bottlenecks in contemporary models. You will also work extremely closely with our pre-training team, who will integrate your insights into our next-generation 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 ability 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:
Previous experience with long-term memory, RAG/retrieval systems, dynamic/adaptive computation, and alternative approaches to credit assignment
Experience with reinforcement learning, control theory, and signal processing
Generally, a joy in inventing and seriously assessing ‘crazy’ ideas, and the ability to have a unique perspective on things
Understanding of modern training pipelines and the hardware requirements to design efficient architectures for GPU hardware
Strong grasp of proper experimental methodology for running rigorous ablations and other hypothesis testing
High proficiency with PyTorch and Python.
Strong ability to jump into large pre-existing codebases and rapidly get up to speed and become productive
Previously published machine learning research in well-respected venues
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
Similar jobs
- Research Engineer, Privacy and AnonymizationClera · San FranciscoFirst seen today
- Research Engineer, Index IntelligenceExa · San Francisco, CaliforniaFirst seen today
- Research Engineer, Content UnderstandingExa · San Francisco, CaliforniaFirst seen today
- Research Engineer / Research Scientist, RL FrontiersAnthropic · San Francisco, CA | New York City, NY | Seattle, WAFirst seen yesterdayremote
- Research Engineer / Performance Engineer, RL Distributed SystemsAnthropic · San Francisco, CA | New York City, NY | Seattle, WAFirst seen yesterdayremote
Browse similar roles
Want this one?
Upload your resume and hirly rewrites it for this job and writes the cover letter — in about thirty seconds, before you sign up.
Tailor my resume for this job