New 
Principal Software Engineer
 Microsoft | |
 United States, Washington, Redmond | |
 Nov 02, 2025 | |
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OverviewMicrosoft is a company where passionate innovators come to collaborate, envision what can be and take their careers further. This is a world of more possibilities, more innovation, more openness, and the sky is the limit thinking in a cloud-enabled world.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 databases team builds and maintains Microsoft's operational Database systems. We store and manage data in a structured way to enable multitude of applications across various industries. We are on a journey to enable developer friendly, mission-critical, AI enabled operational Databases across relational, non-relational and OSS offerings.The Cosmos DB Query Engine team builds and evolves the core query processing layer that drives Microsoft's globally distributed, multi-model database service. We focus on delivering robust, high-performance query capabilities through innovations in distributed execution, cost-based optimization, and efficient data access. Our work spans full-text and vector search, adaptive query processing, and cross-platform execution, enabling developers around the world to query data at global scale with low latency and high reliability. We do not just value differences or different perspectives. We seek them out and invite them in so we can tap into the collective power of everyone in the company. As a result, our customers are better served.
ResponsibilitiesDesign and implement advanced query processing and optimization features in the Cosmos DB Query Engine.Analyze and enhance performance across all stages of query execution.Develop efficient data encodings and indexing strategies to improve storage and retrieval performance.Drive architectural initiatives that advance scalability, reliability, and efficiency of the query engine.Mentor and guide team members, fostering technical excellence and collaboration.Partner closely with other teams to manage dependencies and deliver end-to-end, high-quality solutions.Embody our culture and values | |