Member of Technical Staff (Search Quality Analyst)

Perplexity; Deutschland; Hybrid; EUR 70.000 - 100.000; Vollzeit

Zusammenfassung

Perplexity is seeking an experienced analyst to strengthen our core search technologies in a hybrid role across Belgrade, London or Berlin. You will design metrics, build data pipelines, and improve search quality, while diagnosing issues in the search pipeline and contributing to model training data and labeling pipelines.

You will work at the intersection of data analysis and engineering, writing production-grade code in SQL and Python, and designing experiments to validate improvements.

Qualifikationen

• 4+ years of experience as a data analyst or in a related role.
• Proficient in SQL and Python with production-grade coding skills.
• Experience designing metrics from scratch and running A/B tests.
• Experience building labeling pipelines with LLMs or ML model training.
• Strong collaboration with engineering and data teams.

Aufgaben

• 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

Kenntnisse

Data analysis

Metrics design

A/B testing

Dataset construction

Tools

SQL

Python

LLM labeling pipelines

Production-grade coding

Jobbeschreibung

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

You’ll work at the intersection of data analysis and engineering - designing metrics, building data pipelines, and improving the quality of our search and answer systems.

This role is hybrid in Belgrade, London or Berlin.

Responsibilities

• 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

Qualifications

• 4+ years of experience as a data analyst or in a related role
• Strong coding skills — expected to write production-grade code at a mid-level backend engineer level
• Proficiency with SQL and Python
• Demonstrated hands-on experience with at least one of the following:
  • Designing metrics from scratch (not just analyzing existing A/B experiments)
  • Building labeling pipelines using LLM-as-a-judge
  • Training ML models that shipped to production with measurable metric improvements
  • Designi...