Principal Applied Research Scientist – Generative AI and NLP
Core
Lead R&D for deep learning and generative AI models tailored for large-scale email and communication data to deliver personalized, intelligent experiences to hundreds of millions of Yahoo Mail users.
Role type
Principal Applied Research Scientist (Generative AI & NLP)
Builds
Production-grade generative AI models, evaluation frameworks, and scalable training workflows for Yahoo Mail.
Domain
Consumer Internet / Email / Generative AI / NLP
Deliverable
production ML models
Required skills
Transformer architecture expertise, LLM fine-tuning (LoRA, adapters), knowledge distillation, model compression, synthetic data generation, LLM agent orchestration, evaluation framework design, Python, PyTorch/TensorFlow, Hugging Face, scalable data pipelines
Preferred skills
Large-scale distributed training, on-device model optimization, prompt engineering, RLHF/DPO, cloud platform expertise (GCP/AWS), publications in NLP
Technologies
PyTorch, TensorFlow, Hugging Face, LoRA, GitHub Copilot, Cursor
Responsibilities
Drive research strategy for deep learning and generative AI models; define approaches for fine-tuning foundation models using parameter-efficient techniques; design knowledge distillation for low-latency performance; establish robust evaluation frameworks including LLM-as-a-judge; build scalable training and evaluation workflows; integrate AI pair-programming tools into research workflows; set technical direction for agent-based systems; mentor researchers and establish best practices.
Seniority
Principal, hands-on IC with strategy & mentorship