Member of Technical Staff (AI Researcher)Active$220K–$485K
The opportunity
Perplexity is seeking top-tier AI Research Scientists and Engineers to advance our AI products and capabilities. We're building the future of AI-powered search and agent experiences through our Sonar models, Deep Research Agent, Comet Agent, and Search products.
What you'll do
Post-train SOTA LLMs using the latest supervised and reinforcement learning techniques (SFT/DPO/GRPO)
Leverage our rich query/answer dataset to scale model performance across: Sonar, Deep Research, Comet, and Search products
Stay current with the latest LLM research, especially in model training,: optimization, and personalization techniques
Implement preference optimization and personalization capabilities to enhance user experience
Invent in-house improvements and optimizations to enhance SOTA models
Turn research ideas into algorithms and run experiments to launch new models
What they're looking for
- Own full-stack data, training, and evaluation pipelines required for model development
- Build robust and effective training frameworks (on top of Megatron/PyTorch) for post-training LLMs
- Implement necessary infrastructure and components to support cutting-edge model training at scale
- Integrate models seamlessly into our product ecosystem
