Perplexity
Member of Technical Staff (Software Engineer, Applied AI)
$220K–$405K
San Francisco +2 · Staff · Full-time · Posted Sep 19, 2025
- Location
- San Francisco
Palo Alto
New York City - Experience
- 5+ years building and shipping robust AI products for large-scale, user-facing or data-driven products.
- Education
- BS, MS, or PhD in Computer Science, Engineering, or related field (or equivalent experience).
About the job
Build and improve AI agents and context-layer applications for Perplexity Computer, including personalization, recommendations, monetization, and research capabilities.
What you'll do
- Develop AI features using ML and LLM techniques, including memory, summarization, retrieval, ranking, and contextual recommendations.
- Build research and evaluation harnesses; own model development, testing, production, and iterative improvement.
- Collaborate across teams to improve the product and incorporate emerging ML/AI research.
What they ask for
- Strong software engineering skills, including Python and production-quality codebases.
- Experience across the AI lifecycle, including data analysis, evaluation, and ongoing monitoring or improvement.
- BS, MS, or PhD in Computer Science, Engineering, or a related field (or equivalent experience).
Nice to have
- Experience with LLM context engineering or harness engineering.
- Experience in mid-training or post-training frontier open source models, or large-scale personalization.
Pay
$220K – $405K (USD, base salary)
Tools
Python
AI focus
Applied ML and LLM engineering for agent capabilities, personalization, recommendations, monetization, and model evaluation.
Model-written summary · the original posting is authoritative