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Replit

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Build the growth infrastructure backbone behind Replit's user acquisition and experimentation

Interview for a founding engineer role on Replit's newly formed Growth team, owning the technical backbone for growth experiments, analytics pipelines, and automated onboarding/campaign systems. Covers backend/infra engineering, A/B testing platforms, and cross-functional work with growth PMs and data teams. Suited to engineers with 3+ years building backend or infrastructure services who can speak to data pipeline and experimentation-platform tradeoffs.

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What this interview tests

  • Growth analytics pipeline design and data quality
  • A/B testing and feature-flag infrastructure
  • Cross-functional translation of growth/product goals into specs
  • CI/CD and infrastructure as code
  • Monitoring, alerting, and reliability for growth systems

Common question themes

Design an analytics pipeline for acquisition/activation/retention metrics

How would you integrate an experimentation platform into production systems

Automating safe rollout of feature flags for growth experiments

Turning a business goal from a growth PM into a technical spec

Debugging a production growth-infrastructure incident

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