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Principal Experimentation Data Scientist - Experimentation Data Science

Atlassian

$167,400 - $263,200
Oct 1, 2025
Seattle, WA, USA
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Atlassian is looking for a Principal Data Scientist to join their Experimentation Data Science team to help unlock Atlassian’s experimentation capabilities and increase the velocity and value of experiments.

Requirements

  • Experience building and scaling experimentation practices, statistical methods, and tools in a large scale organization
  • Experience with causal inference, multi-arm bandits. reinforcement learning, synthetic data and experimentation, non-parametric methods
  • Expertise in SQL, familiarity with Python, knowledge of Spark and cloud data environments (e.g. AWS, Databricks)

Responsibilities

  • Drive the experimentation practices and analyses, collaborating with business, engineering, and analytics teams, to enable trustworthy decisions at scale.
  • Lead the organization to develop and adopt novel ways (sprt, stratified random sampling, etc.,) to increase the speed of the experimentation lifecycle.
  • Partnering with the experimentation engineering team to help unlock Atlassian’s experimentation capabilities.
  • Help teams experiment successfully by delivering training, tools, and analyses to go from idea to decision as quickly as possible.
  • Providing experimentation expertise and hands-on support for experimenting at scale.
  • Work cross-functionally with stakeholders in GTM, growth, product, data engineering, and analytics platform teams.

Other

  • Master or PhD in a quantitative subject (Statistics, Mathematics, Computer Science, Operations Research, or relevant work experience)
  • 5+ years of related industry experience in the data science and experimentation domain
  • Ability to communicate and explain data science and experimentation concepts to diverse audiences, craft a compelling story
  • Focus on business practicality and the 80/20 rule; very high bar for output quality, but recognize the business benefit of "having something now" vs "perfection sometime in the future"
  • Agile development mindset, appreciating the benefit of constant iteration and improvement