Principal Data Scientist (A/B Experimentation)

TL;DR

Principal Data Scientist (A/B Experimentation): Improving Bing's A/B experimentation system and defining actionable metrics that provide direction to the Bing team, with an accent on understanding how users engage with search engines and translating those insights into actionable metrics. Focus on delivering an improved A/B experimentation system, analyzing thousands of online controlled experiments, and developing strategies for understanding correlation between key Bing metrics.

Location: Redmond, United States. Starting January 26, 2026, employees who live within a 50-mile commute of a designated Microsoft office in the U.S. are expected to work from the office at least four days per week.

Salary: USD $139,900 – $274,800 per year

Company

hirify.global, part of the Bing organization, is pushing the boundaries in understanding user engagement with search engines and translating those insights into actionable metrics.

What you will do

• Inform future directions of Bing’s A/B experimentation platform and drive improvements to it.
• Establish long-term A/B experimentation capabilities.
• Understand A/B online experiments, online user engagement, and produce actionable, trustworthy conclusions.
• Develop strategies for understanding correlation between key Bing metrics and define overall ship decision criteria.
• Continuously improve measurement of key metrics and update them according to new instrumented signals.
• Develop tools to help feature teams understand why their changes impact metrics.

Requirements

• Doctorate in Data Science, Mathematics, Statistics, Econometrics, Economics, Operations Research, Computer Science, or related field AND 5+ years data-science experience; OR Master’s Degree AND 7+ years; OR Bachelor’s Degree AND 10+ years.
• Experience in SQL-like query languages.
• Experience in design & problem-solving skills with one or more programming languages, such as Python, Java, C# or C++.
• Must live within a 50-mile commute of a designated Microsoft office in the U.S. and work from the office at least four days per week starting January 26, 2026.

Nice to have

• Familiarity with online A/B experimentation.
• Familiarity with large-scale online products, dealing with online instrumentation.
• Experience with large datasets and interest in consumer online search behaviors.

Culture & Benefits

• Microsoft's mission is to empower every person and organization to achieve more.
• A growth mindset, innovation, and collaboration are fostered to realize shared goals.
• Values of respect, integrity, and accountability create a culture of inclusion.