CareerPlan

Research Engineer / Scientist, Pre-training

San Francisco, CAFull-time$500k–$850k2026-11-02 → 2026-11-10
HybridVisa sponsorship offered

Core

Develop the next generation of large language models by conducting research and implementing solutions in model architecture, algorithms, data processing, and optimizer development.

Role type

Senior Research Engineer / Scientist (Pre-training)

Builds

Large language models, training infrastructure, and dev tooling

Domain

Artificial Intelligence / Machine Learning / Large Scale Systems

Deliverable

production ML models

Required skills

Python, PyTorch, deep learning frameworks, large-scale machine learning, transformer architectures, distributed training, ETL processes

Preferred skills

GPU optimization, Kubernetes, OS internals, reinforcement learning, high-performance ML systems

Technologies

PyTorch, Kubernetes, GPUs

Responsibilities

Design and run scientific experiments to advance understanding of large language models; Optimize and scale training infrastructure to improve efficiency and reliability; Develop and improve dev tooling to enhance team productivity; Independently lead small research projects while collaborating on larger initiatives; Contribute to the entire stack from low-level optimizations to high-level model design

Seniority

Senior, hands-on IC