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Senior Data Scientist
  • Python
  • Spark
  • SQL
  • Machine Learning
  • Excel
  • C#
Redmond, WA
175 days ago

Do you have a passion for data, machine learning and are interested in cybersecurity? Do you want to apply it to protecting people against cybercriminals at scale? Would you like to work with a diverse, talented, and highly collaborative team of data scientists, security researchers and other specialists? Would it make you proud to tell your friends and family that the work you do protects half a billion people in over a hundred countries around the world?

We are seeking an experienced Data Scientist to help us build and expand our machine learning based protections. Here's a bit about us. Microsoft Defender Advanced Threat Protection (WDATP) is a unified platform for preventative protection, post-breach detection, automated investigation, and response. Our team, the MDATP Endpoint Protection team, focuses on pre-breach detection - blocking and preventing threats before they can cause harm to people or to businesses. On our security research team, machine learning is a fundamental part of how we protect customers. That's where you come in.

As a data scientist on our machine learning team, you will partner with our researchers, engineers, and other data scientists to design, build, and deploy state-of-the-art machine learning to protect customers. In your day-to-day work, you will analyze telemetry from our products, conduct data experiments, build machine learning or statistical pipelines, build automation pipelines, incorporate quality monitors, and ship successful models to production.

At Microsoft, you’ll have access to vast amounts of threat-related data from billions of endpoints and other sources. You will have the opportunity to collaborate with partners across Microsoft who have decades of security and ML expertise. We also offer many company-sponsored classes and conferences that focus on data science, ML, and engineering excellence. Microsoft provides phenomenal community, tools, and technologists to grow your expertise in this field. Best of all, on the MDATP team, you'll be able to apply that expertise to protecting people.


  • Build end-to-end pipelines for turning raw data into protection value for customers through statistical and/or machine learning methods
  • Research, experiment with, and measure the impact of new protection models using data
  • Research and evangelize new ML or statistical technologies
  • Monitor and analyze protection data to uncover protection gaps
  • Provide technical leadership to our team by reviewing problem sets, proposing prediction models, and reviewing experiments and models


  • 4+ years of professional experience in a technical role in the areas of Data Science, Machine Learning, or Machine Learning Engineer.
  • 3+ years of experience applying, implementing, and/or developing machine learning or statistical algorithms.
  • Advanced knowledge of applied machine learning and/or statistic methods. Strong coding skills. Python, C#, R or other languages strongly preferred. SQL, Spark, or similar a bonus.
  • Strong drive for results. You have a proven record of shepherding experiments to create successful shipping products/services.
  • Strong communication and collaboration skills. You can learn from and teach others.
  • Good understanding of machine learning fundamentals, including measures of model performance, common linear and non-linear algorithms, bias and variance, and performance considerations.
  • Experience in cybersecurity preferred, but not required. A Masters or Ph.D degree with coursework in Statistics, Data Science, Experimentation Design, and Machine Learning is highly desirable.

Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable laws, regulations and ordinances. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements. If you need assistance and/or a reasonable accommodation due to a disability during the application or the recruiting process, please send a request via the Accommodation request form.
Benefits/perks listed below may vary depending on the nature of your employment with Microsoft and the country where you work.

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