Member of Technical Staff (Search Quality Analyst)

The role

You will work at the intersection of data analysis and engineering. You will design metrics, build data pipelines, and improve the quality of search and answer systems.

What you will do

• Find and diagnose quality issues in our search pipeline
• Design metrics from scratch to track and measure search quality
• Build datasets for model training, including LLM-as-a-judge labeling pipelines
• Improve search snippet quality and page selection algorithms for indexing
• Design and analyze A/B experiments to validate improvements

Required qualifications

• 4+ years of experience as a data analyst or in a related role
• Strong coding skills to write production-grade code at a mid-level backend engineer level
• Proficiency with SQL and Python
• Hands-on experience designing metrics from scratch
• Hands-on experience building labeling pipelines using LLM-as-a-judge
• Hands-on experience training ML models that shipped to production with measurable metric improvements
• Hands-on experience designing evals with known ground truth or driving meaningful improvements on such evals

Nice to have

• Experience working on search-related products
• Knowledge of statistics and A/B experiment design
• Experience with Apache Spark or Databricks

About the company

Perplexity is looking for an experienced analyst to help build and improve core search technologies.