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Principal Scientist

https://www.microsoft.com/ Logo

Microsoft Corporation

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Location:
Spain , Barcelona

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Contract Type:
Not provided

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Salary:

Not provided

Job Description:

Microsoft’s Azure Data engineering team is leading the transformation of analytics in the world of data with products like databases, data integration, big data analytics, messaging & real-time analytics, and business intelligence. The products our portfolio include Microsoft Fabric, Azure SQL DB, Azure Cosmos DB, Azure PostgreSQL, Azure Data Factory, Azure Synapse Analytics, Azure Service Bus, Azure Event Grid, and Power BI. Our mission is to build the data platform for the age of AI, powering a new class of data-first applications and driving a data culture. Within Azure Data, the big data analytics team provides a range of products that enable data engineers and data scientists to extract intelligence from all data – structured, semi-structured, and unstructured. We build the Data Engineering, Data Science, and Data Integration pillars of Microsoft Fabric. We are the Gray Systems Lab (GSL), the applied research group for Microsoft Azure Data. We tackle research problems in the areas of databases, big data, cloud, systems-for-ML, and ML-for-systems. Our mission is to advance the Microsoft Azure Data organization, and we do so in three ways: (i) innovating within Microsoft products and services (ii) publishing in top-tier conferences and journals, and (iii) actively contributing to open-source projects. As a Principal Scientist, you have an opportunity to work on the latest technology of LLMs and Data Science and apply them to some of the largest problems in industry, including practical applications of ML on workload insight and optimization, apply innovative algorithms for solving placement and load balancing problems at scale. In GSL we seek collaborative and inclusive manager who can think big, working on the bleeding edge envisioning a new future, and work with our team of researchers and engineers to make it happen.

Job Responsibility:

  • Propose, Design, build, and operationalize novel data systems
  • Navigate and improve complex software systems, participate in design decisions, and implement new features
  • Work closely with internal product teams to understand and address their requirements
  • Collaborate with GSL members and PMs and engineers from product groups
  • Contribute to open-source systems
  • Participate in academic activities through publications, presentations, and community services
  • Embody our culture and values.

Requirements:

  • Doctorate in Data Science, Mathematics, Statistics, Econometrics, Economics, Operations Research, Computer Science, or related field AND strong data-science experience (e.g., managing structured and unstructured data, applying statistical techniques and reporting results)
  • OR Master's Degree in Data Science, Mathematics, Statistics, Econometrics, Economics, Operations Research, Computer Science, or related field AND strong years data-science experience
  • OR Bachelor's Degree in Data Science, Mathematics, Statistics, Econometrics, Economics, Operations Research, Computer Science, or related field AND extensive years data-science experience
  • OR equivalent experience
  • People-management experience (or equivalent)
  • Ability to meet Microsoft, customer and/or government security screening requirements are required for this role
  • This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter.

Additional Information:

Job Posted:
February 04, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
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