New 
Principal Software Engineering Manager
 Microsoft | |
 United States, Washington, Redmond | |
 Oct 31, 2025 | |
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OverviewWould you be excited about building a global-scale, Kubernetes-based service platform that powers Microsoft's productivity workloads? Do you want to lead a team of talented and motivated engineers who use cutting-edge technology to deliver high-quality solutions? If so, join us on the Containers on Substrate-Managed Intelligent Clusters (COSMIC) team and help us shape the future of Microsoft's cloud infrastructure. The COSMIC team, part of the M365 Substrate Core organization, has a bold mission to standardize how we deliver services and build a modern Kubernetes-based compute fabric with turn-key geo-presence, security, high availability, fault isolation and automated cloud build out. COSMIC, which stands for Containers on Substrate-Managed Intelligent Clusters, is a strategic bet we are making to modernize our compute platform and improve the agility, security, compliance, and COGS of our services in the Experience and Devices division.We are seeking a Principal Software Engineering Manager to help us take the platform to the next level and deliver on our promises of fabric unification and turn-key developer experience.In this role you will be working with multiple teams across COSMIC and M365 Substrate Core defining and building solutions to deliver a high-level, prescriptive geo-scale application platform which standardizes how we deliver enterprise-ready services to the Microsoft cloud.You will work extensively with Microsoft Azure technologies while also using industry standard open sources such as Kubernetes and related components. You will provide effective mentoring, coaching and technical leadership to a team of engineers, and will also have opportunities to collaborate with numerous teams across Microsoft and have significant impact on hundreds of critical Microsoft services running on the COSMIC platform.This is a flexible work opportunity and there is an option to work fully remotely.Microsoft's 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.
ResponsibilitiesOversees partnership with appropriate stakeholders (e.g., project manager, technical lead) to determine user requirements within and across teams for multiple solutions or product lines.Oversees teams and provides technical leadership for identification of dependencies and the development of design documents for a product, application, service, or platform.Optimizes, debugs, refactors, and reuses code to improve performance and maintainability, effectiveness, and return on investment (ROI).Oversees teams to drive multiple group's project plans, release plans, and work items in coordination with appropriate stakeholders (e.g., project managers) across products.Leads the resolution of complex site incidents and oversees for Designated Responsible Individuals (DRI) and directs the work of other engineers across product lines.Keeps informed of and communicates new standards to ensure that the product development and scaling to customer requirements and applies best practices for meeting scaling needs and performance expectations and holds accountability for products that do not meet expectations. | |