Microsoft's Azure Data engineering team is seeking a Principal Software Engineer for the Gray Systems Lab (GSL), an applied research group within the Azure Data CTO office. This role focuses on building reliable, highly scalable distributed systems for data analytics on Azure. GSL tackles challenges in open-source and proprietary technologies related to analytics, cloud, AI, and storage systems. The team contributes to academic papers and builds technologies impacting Microsoft's revenue. Working with a diverse team from 10 countries, you'll contribute to innovative projects including analytics on GPUs, container technologies, graph databases, and machine learning systems. The role offers opportunities to lead open-source development, collaborate with product teams, and represent Microsoft in the technical community. This position combines cutting-edge research with practical engineering, making it ideal for someone passionate about data systems and open-source development. The team values work-life balance and fosters an inclusive environment that drives innovation.