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Principal Data Scientist - Experimentation

Atlassian

$167,400 - $263,200
Oct 2, 2025
Seattle, WA, USA
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Atlassian is looking to unlock its experimentation capabilities and create a culture of experimentation by hiring a Principal Data Scientist to join the Experimentation Data Science team.

Requirements

  • 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
  • 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)
  • 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'

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 to increase the speed of the experimentation lifecycle
  • Deliver training, tools, and analyses to help teams experiment successfully
  • Partner with the experimentation engineering team to help unlock Atlassian’s experimentation capabilities
  • Work cross-functionally with stakeholders in GTM, growth, product, data engineering, and analytics platform teams
  • Provide experimentation expertise and hands-on support for experimenting at scale
  • Develop and adopt novel ways (such as sprt, stratified random sampling, etc.) to increase the speed of the experimentation lifecycle

Other

  • Master or PhD in a quantitative subject (or relevant work experience)
  • 5+ years of related industry experience
  • 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
  • Agile development mindset, appreciating the benefit of constant iteration and improvement