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Research Engineer - Model Architectures

Zyphra - San Francisco, California, United States

Posted Mar 17, 2026

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About this role

Research Engineer - Model Architectures San Francisco, California, United States 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

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