Sr. Staff Data Scientist

San Francisco, CA
Data Science – Data Science, Analytics /
Full-time /
On-site

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In-Office Policy

  • This position requires in-person attendance, reporting to our San Francisco office a minimum of three days per week (Monday, Wednesday, and Thursday), or as required by Quizlet. Do you currently reside within a commutable distance?

Additional Questions

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Additional Information - Sr. Staff Data Scientist

  • Tell me about the most rigorous non-experiment causal analysis you’ve led end-to-end. What identification strategy did you choose (e.g., diff-in-diff, IV, RDD, synthetic control), how did you check the assumptions, and what decision did it change?
  • Imagine a learning app funnel: acquisition → onboarding → first study session → weekly return → subscription. Pick two output metrics you’d hold yourself accountable for, then propose three specific controllable input metrics you’d instrument and move first. How would you prioritize and verify that moving them causes lift?
  • Describe a project where you modeled user–content or user–user interactions as a graph to uncover growth or quality levers. What graph features/algorithms did you use (e.g., community detection, PageRank, diffusion), and how did insights translate into product changes or experiments?
  • In a Weekly Business Review setting, if Engaged Learners and Revenue are the outputs, which 3–5 controllable input metrics would you hold teams accountable for next quarter? Give precise definitions, likely failure modes (gaming/regression to mean), and the guardrails/forecasts you’d use.

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