CareerPlan

Principal Applied Research Scientist – Generative AI and NLP

United States of AmericaFull-time$128k–$267k2026-07-28 → 2026-11-13
Hybrid

Core

Lead R&D for deep learning and generative AI models tailored for large-scale email and communication data to deliver personalized, intelligent experiences.

Role type

Principal Applied Research Scientist (Generative AI & NLP)

Builds

Production-grade generative AI models, agent-based systems, and scalable training/evaluation workflows for Yahoo Mail.

Domain

Consumer Internet / NLP / Generative AI

Deliverable

production ML models

Required skills

Transformer architecture expertise, LLM fine-tuning (LoRA, adapters), knowledge distillation, model evaluation frameworks, agent-based system design, Python, PyTorch/TensorFlow, Hugging Face, scalable data pipelines

Preferred skills

Large-scale distributed training, on-device model optimization, agent frameworks, RLHF/DPO, cloud platforms (GCP, AWS)

Technologies

PyTorch, TensorFlow, Hugging Face, LoRA, GitHub Copilot, Cursor

Responsibilities

Drive research strategy for generative AI models; define approaches for fine-tuning foundation models; design knowledge distillation workflows; establish robust evaluation frameworks; build scalable training/evaluation workflows; integrate AI pair-programming tools; set technical direction for agent-based systems; mentor researchers and establish best practices.

Seniority

Principal, hands-on IC with strategic mentorship