Staff Data Engineer – Search Analytics & ML Pipelines

Perplexity; Greater London; Hybrid; GBP 70,000 - 110,000; Full time

Job summary

Perplexity is seeking an experienced analyst to help 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, requiring collaboration across data science and engineering teams to ship measurable improvements in search results and user experience.

Qualifications

• 4+ years of experience as a data analyst or in a related role.
• Strong coding skills—production-grade code at a mid-level backend engineer level.
• Proficiency with SQL and Python.
• Hands-on experience with at least one of: designing metrics from scratch, building labeling pipelines, training ML models shipped to production, or designing evals with ground truth.

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 labeling pipelines.
• Improve search snippet quality and page selection for indexing.
• Design and analyze A/B experiments to validate improvements.

Skills

Data analysis

SQL

Python

Analytical thinking

Tools

Production-grade coding

Back-end development

Job description

Perplexity is seeking an experienced analyst to help 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, requiring collaboration across data science and engineering teams to ship measurable improvements in search results and user experience.