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Senior Product Data Scientist

Klaviyo

$128,000 - $192,000
Aug 22, 2025
Boston, MA, US
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Klaviyo is looking to enhance its analytic capabilities and drive its customer strategy by hiring a Head of Product Analytics and Customer Insight. This role will focus on leveraging data science and product development to understand customer behavior, evaluate product performance, and inform strategic decisions.

Requirements

  • You are highly proficient in SQL and either Python or R, and comfortable using DBT for analytics engineering
  • You have deep expertise in experimentation and statistical analyses.
  • You bring strong business intuition and the ability to translate ambiguous questions into clear analytical plans
  • You work with speed and focus, balancing analytical rigor with the urgency and iteration cadence of product development
  • You are a compelling communicator who can frame complex statistical findings into product-relevant insights
  • You thrive in cross-functional settings and are energized by using data to drive product decisions that improve customer outcomes

Responsibilities

  • Partner with product and engineering teams to identify and evaluate high-impact product opportunities through rigorous experimentation, causal inference, and predictive modeling
  • Lead the design, implementation, and analysis of experiments — including A/B tests and multivariate tests — ensuring sufficient power, correct statistical methods, and actionable recommendations
  • Conduct statistical research projects to uncover patterns in customer behavior, evaluate product performance, and identify causal relationships — using methods such as Mixed Effects Models, Difference-in-Differences, clustering algorithms, and time series analysis to guide product strategy and decision-making.
  • Define the right product and customer metrics to measure success, and build scalable, self-serve analytics tools and dashboards that enable product managers and cross-functional stakeholders to make data-informed decisions independently.
  • Collaborate with data engineering to define and implement reliable data pipelines and DBT models that ensure clean, well-structured, and trustworthy data for downstream analysis and self-serve use.
  • Communicate insights clearly and persuasively to cross-functional stakeholders, from product teams to executive leadership

Other

  • This is a hybrid role and requires 3 days/week in our Boston office. Fully remote candidates will not be considered at this time.
  • You have 6+ years of experience (ideally 7+) in data science, product analytics, or applied statistics, preferably in a B2B SaaS or product-focused environment
  • You hold a degree in a quantitative field such as Statistics, Mathematics, Computer Science, Economics, or Engineering