Data Scientist, Experimentation
Core
Design, analyze, and instrument A/B experiments to measure product changes and ensure sound decision-making for Viator's travel experience marketplace.
Role type
Mid-level IC data scientist (experimentation)
Builds
Production experimentation tooling, reusable queries, and templates for product teams
Domain
Travel marketplace / Consumer tech
Required skills
Statistical power analysis, Python, SQL, hypothesis formulation, metric instrumentation, data quality validation, causal inference basics, opportunity sizing, funnel analysis
Preferred skills
Variance reduction techniques, SaaS experimentation tools (Statsig, Eppo, GrowthBook), high-scale consumer product experience, AI tooling for analysis
Technologies
Python, SQL, Statsig, Eppo, GrowthBook
Responsibilities
Design and analyze experiments end-to-end with product teams; define feature-level metrics and guardrails; investigate results for data integrity and validity; build reusable tooling and documentation; communicate findings including negative results; perform observational analysis where randomization isn't possible; document hypotheses and outcomes for organizational learning
Seniority
Mid-level, hands-on IC