This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Principal AI Engineer based in United States. This role offers the opportunity to build the foundation behind the next generation of large-scale artificial intelligence systems.You will design, optimize, and operate distributed training infrastructure for advanced neural networks across large GPU clusters.The position combines deep systems engineering, machine learning infrastructure, and performance optimization to enable faster and more reliable AI development.You will work closely with research and applied machine learning teams to productionize large-model training pipelines.Your expertise will directly impact the ability to train larger models, accelerate experimentation, and improve AI scalability.This is a high-impact technical leadership role for an engineer passionate about solving complex distributed computing challenges.