# Data Scientist/Engineer – Online Metrics

**Company**: Perplexity
**Location**: London
**Work arrangement**: hybrid
**Experience**: mid
**Job type**: full-time
**Category**: Engineering
**Industry**: Technology

**Apply**: https://jobs.ashbyhq.com/perplexity/768efd34-3854-4c9b-9686-2a128ab35405
**Canonical**: https://yubhub.co/jobs/job_fff2f70e-ae1

## Description

As a Data Scientist/Engineer on the Answer Quality team, you will derive online signals from user interactions to bridge the gap between changes in answer quality and observed user behavior.

## What you'll do

Discover and validate online signals from user interactions that serve as reliable proxies for true answer quality.

- Design and implement novel online metrics to be tracked both in A/B testing and on product health dashboards, ensuring alignment with ground-truth evaluations.

## What you need

- Strong proficiency in Python and SQL (expected to write production-grade code).

## Why this matters

Your work directly shapes how Perplexity measures and improves Answer Quality, driving product decisions and user satisfaction.

## Skills

### Required
- Python
- SQL
- statistical analysis

### Nice to have
- Apache Spark
- Databricks
- LLM-as-a-judge systems