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Principal Data Scientist

Microsoft


Job Location:

Redmond, WA - USA

Yearly Salary: USD 130900 - 277200
Posted: 6 October 2026 (19 hours ago)
Application Deadline: 3 January 2027
Vacancies: 1 Vacancy

Job Summary

Overview

With more than 45000 employees and partners worldwide the Customer Experience and Success (CE&S) organization is on a mission to empower customers to accelerate business value through differentiated customer experiences that leverage Microsofts products and services ignited by our people and culture. We drive cross-company alignment and execution ensuring that we consistently exceed customers expectations in every interaction whether in-product digital or human-centered. CE&S is responsible for all up services across the company including consulting customer success and support across Microsofts portfolio of solutions and products. Join CE&S and help us accelerate AI transformation for our customers and the world.

Within CE&S the Customer Service & Support (CSS) organization builds trust and confidence for every person and organization through delivering a seamless support CSS we are powered by Microsofts AI technology to help consumers businesses partners and more resolve their issues quickly and securely helping prevent future problems from occurring and achieving more from their Microsoft investment.

In the Customer Service & Support (CSS) team we are looking for people with a passion for delivering customer success. As a Principal Technical Support Engineer you will engage with executive level customers and development teams across Microsoft to enable resolution of highly complex technical issues and drive appropriate product changes. This opportunity will allow you to accelerate your career growth hone your deep technical expertise and become a technical leader within Microsoft.

Microsofts mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset innovate to empower others and collaborate to realize our shared goals. Each day we build on our values of respect integrity and accountability to create a culture of inclusion where everyone can thrive at work and beyond.



Responsibilities
  • Lead the design and analysis of large-scale experiments and observational studies; select and defend the right causal inference approach for each problem.
  • Develop and productionize advanced machine learning and causal models that drive strategic decisions.
  • Establish best practices for experimentation statistical rigor and model validation across the team.
  • Influence metric definitions measurement strategy and roadmap through data-driven insight.
  • Mentor Associate data scientists and review analyses for methodological soundness.
  • Communicate complex results and trade-offs to senior stakeholders.


Qualifications

Required/minimum qualifications

  • Bachelors Degree in Computer Science Information Technology (IT) or related field AND 10 years technical support technical consulting experience or information technology experience
    • OR equivalent experience.

Other Requirements

  • Abilityto meet Microsoftcustomerand/or government security screening requirements arerequiredfor this role. These requirementsinclude butare not limited to the following specialized security screenings: Citizenship & Citizenship Verification: This position requires verification of U.S. citizenship due to citizenship-based legal restrictions. Specifically this position supports United States federal state and/or local United States government agency customer and is subject to certain citizenship-based restrictions whererequiredorpermittedby applicable law. To meet this legal requirement citizenship will be verified via a valid passport.

Additional or preferred qualifications
  • Bachelors Degree in Computer Science Information Technology or related field AND 15 years of technical support technical consulting experience or information technology experience
    • OR equivalent experience.
  • Expert-level causal inference able to choose apply and critique experimental and observational methods (DiD IV propensity/matching uplift synthetic control).
  • Advanced statistics deep command of inference uncertainty quantification and both Bayesian and frequentist approaches.
  • Strong ML expertise end-to-end modeling robust validation and production deployment.
  • Experience evaluating LLMs and/or AI agents building rigorous evaluation frameworks benchmarking and measuring quality safety and reliability at scale.
  • Track record leading impactful experimentation programs.
  • Experience with causal ML libraries (DoWhy EconML CausalML) at scale.
  • Demonstrated technical leadership and mentorship.
  • Data storytelling translating complex analyses into compelling data stories through enhanced visualizations in Python (e.g. matplotlib seaborn plotly) or other tools.
  • Expert proficiency in Python or R and SQL.


Technical Support Engineering IC6 - The typical base pay range for this role across the U.S. is USD $130900 - $277200 per year. There is a different range applicable to specific work locations within the San Francisco Bay area and New York City metropolitan area and the base pay range for this role in those locations is USD $165600 - $303600 per year.

Certain roles may be eligible for benefits and other compensation. Find additional benefits and pay information here:
position will be open for a minimum of 5 days with applications accepted on an ongoing basis until the position is filled.



Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age ancestry citizenship color family or medical care leave gender identity or expression genetic information immigration status marital status medical condition national origin physical or mental disability political affiliation protected veteran or military status race ethnicity religion sex (including pregnancy) sexual orientation or any other characteristic protected by applicable local laws regulations and ordinances. If you need assistance with religious accommodations and/or a reasonable accommodation due to a disability during the application process read more about requesting accommodations.


Required Experience:

IC