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Principal Product Data Scientist

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Job Description:

As a Principal Product Data Scientist, you will operate as the most senior technical leader in the Product Data Science function. You will shape the vision, set the technical direction, and drive strategic impact through innovative analytical solutions. This role is both highly technical and deeply collaborative, requiring excellence in leadership, communication, and cross-functional influence.

Job Responsibility:

  • Lead and define the Data Science strategy for Product, ensuring that advanced analytics, data science, and AI methodologies are central to how we build great products and improve customer experiences
  • Serve as a trusted strategic advisor to senior Product and Engineering leadership, ensuring that data-driven decision making is embedded at the highest levels of the organization
  • Drive the development and adoption of next-generation data science tooling, platforms, and frameworks, with a focus on automation, scalability, and reproducibility
  • Spearhead the exploration and integration of emerging AI technologies, such as Agentic AI and AI Agents, identifying and developing high-impact use cases from POC to production
  • Champion best practices in experimentation, causal inference, and uplift modeling, ensuring statistical rigor in decision-making processes
  • Take ownership of the most complex, high-profile analytical projects, translating ambiguous questions into clear, actionable recommendations that deliver commercial and customer value
  • Mentor, coach, and develop other Data Scientists and Analysts, fostering a culture of critical thinking, continuous learning, and technical excellence
  • Lead initiatives to scale impact through automation, self-service, and democratization of data science capabilities
  • Develop sophisticated customer segmentation, and predictive models that directly inform and optimize the product roadmap
  • Communicate complex analytical and technical concepts to diverse audiences, influencing stakeholders across Product, Engineering, Design, and Commercial teams

Requirements:

  • Extensive experience in data science or a similar quantitative role, with a proven track record of supporting and influencing a product organization
  • Expert Level proficiency in Python and SQL
  • Deep, hands-on experience with statistical modeling, (quasi) experimentation, multi-arm bandit, and a wide range of machine learning techniques (e.g., Regression, Classification, Clustering)
  • Demonstrated ability to define, implement, and operationalize crucial product and feature-level metrics from scratch
  • A proven track record of driving strategic impact through proactive and collaborative approach with the proven ability to lead technical discussions, drive product strategy, and communicate complex insights effectively to cross-functional partners (e.g., Product, Engineering, Design)
  • Experience scaling analytics capabilities, driving impact through the creation of automated processes, self-service tools, or data products
  • Leader in critical thinking, your previous experience will demonstrate the analysis of available facts, evidence, observations, and arguments in order to form a judgment by the application of rational, skeptical, and unbiased analyses and evaluation
  • Outstanding leadership skills, with experience in mentoring, coaching, and developing teams of analysts or data scientists
  • Exceptional collaboration and communication skills, with the ability to engage, influence, and inspire cross-functional partners at all levels
  • Bachelor's degree in Statistics, Mathematics, Data Science, Engineering, Physics, Economics, or a related quantitative field

Nice to have:

  • Advanced programming background with the ability to build simulations and prototype data products
  • Experience validating quantitative findings with qualitative methods (e.g., surveys, user research)
  • Demonstrated experience with applied AI, such as NLP, Large Language Models (LLMs), or Agentic AI for analytics
  • Experience working within a two-sided marketplace, e-commerce, or the travel technology industry
  • Masters degree or equivalent relevant programs
What we offer:
  • Competitive compensation packages (routinely benchmarked against the latest industry data), including base salary and annual bonuses
  • “Work your way” with flexibility to suit your lifestyle. Viator takes a remote-friendly approach to collaboration across a worldwide team, with the option to join on-site as often as you’d like
  • Flexible schedule. Work-life balance is ingrained in our culture by design. Trust and accountability make it work
  • Donation matching. Give back? Give more! We match qualifying charitable donations annually
  • Tuition assistance. Want to level up your career? We love to hear it! Receive annual support for qualified programs
  • Lifestyle benefit. An annual benefit to spend on yourself. Use it on travel, wellness, or whatever suits you
  • Travel perks. We believe that travel is employee development, so we provide discounts and more
  • Employee assistance program. We’re here for you with resources and programs to help you through life’s challenges
  • Health benefits. We offer great coverage and competitive premiums

Additional Information:

Job Posted:
January 07, 2026

Work Type:
Remote work
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