**Intro:** Facebook's mission is to give people the power to build community and bring the world closer together. Through our family of apps and services, we're building a different kind of company that connects billions of people around the world, gives them ways to share what matters most to them, and helps bring people closer together. Whether we're creating new products or helping a small business expand its reach, people at Facebook are builders at heart. Our global teams are constantly iterating, solving problems, and working together to empower people around the world to build community and connect in meaningful ways. Together, we can help people build stronger communities - we're just getting started.**Summary:** Ads Experimentation has a mission to maximise the value of all decisions impacting Facebook's monetization efforts such as Shops and ads delivered to 1.5+ billion people every day. We develop cutting-edge online and offline experimentation methods and tools so the thousands of decisions made by Facebook monetization teams are driven by precise and efficient measurement.We are looking for a Data Scientist with deep expertise in experimentation and causal inference, and who can partner with Engineering to drive company-level impact by solving new and complex industry problems.**Required Skills:** 1. Contribute to long-term technical vision and strategy methods and metrics that will improve the quality and efficiency of decision-making at scale and in the face of changing data availability2. Develop understanding of complex experimentation and measurement system, as well as broader industry challenges, to identify present and future risks and opportunities3. Leverage experiment usage data to prioritize areas of investment, anticipate experimenter needs, and assess novel solutions4. Empower Ads Ranking ML and Ads product development to accelerate Facebook revenue growth5. Work with engineering and other data scientists to build and improve experimentation methods and metrics, ensuring high-quality output and impact6. Grow experimentation expertise around you, upskilling fellow data scientists, engineers, and others, to increase overall team impact**Minimum Qualifications:** 7. Bachelors/Masters Degree with 4+ years (or PhD with 2+ years) of experience working within an analytical role8. Proven experimentation experience and statistical knowledge9. Experience translating business problems into analytical strategy and solutions10. Experience driving team direction with data11. Experience working independently and as a member of a cross-functional team12. Experience in querying and manipulating large datasets for analysis using languages like SQL, Python, or R**Preferred Qualifications:** 13. 7+ years of experience working in an analytics organization14. Experience working on large scale experimentation problems such as A/B testing platforms, causal inference frameworks, adaptive experimentation, and experimentation decision guideline/guardrails deep understanding of digital advertising and industry trends (such as privacy regulations)15. Experience leading large, technically complex projects that drive business value at scale16. Experience technically, leading the way in identifying and developing solutions needed to address highly complex problems**Industry:** Internet**Equal Opportunity:** Facebook is proud to be an Equal Opportunity and Affirmative Action employer. We do not discriminate based upon race, religion, color, national origin, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender, gender identity, gender expression, transgender status, sexual stereotypes, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics. We also consider qualified applicants with criminal histories, consistent with applicable federal, state and local law. Facebook is committed to providing reasonable accommodations for candidates with disabilities in our recruiting process. If you need any assistance or accommodations due to a disability, please let us know at .