Research Scientist, Model Architectures

Zyphra

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

As a Research Scientist, 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.

• 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 to 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

• 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)

• 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

• Comprehensive medical, dental, vision, and FSA plans
• Competitive compensation and 401(k)
• Relocation and immigration support on a case‑by‑case basis
• On‑site meals prepared by a dedicated culinary team;
  Thursday Happy Hours
• In‑person team in San Francisco, California, with a collaborative, high‑energy environment