Software Principal Engineer United States Jobs (Hybrid work)

Lead automation strategy for Microsoft's high-performance cloud infrastructure. Define standards and roadmaps for HPC and Azure platform integrations. This senior role requires deep coding expertise and leadership to build and mentor a team. Based in Mountain View, it offers impact at a global sc...

Join our team to build a planet-scale, multi-modal database and AI-integrated infrastructure for LLMs. We seek Senior and Principal Software Engineers with 4-6+ years of experience in C++, C#, or Java, and expertise in Kubernetes, scalable services, and live site operations. This role in Redmond ...

Lead the architecture for Azure AI's core infrastructure as a Principal Software Engineer in Redmond. You will design and build large-scale, distributed systems powering advanced search and knowledge services for LLMs. This role requires deep expertise in C#/C++/Java/Python and cloud-based distri...

Join Microsoft Discovery in Redmond as a Principal Software Engineer. You will architect a transformative AI-driven platform to accelerate scientific R&D. Lead the build of scalable distributed systems, mentor engineers, and integrate cutting-edge AI technologies. Requires 6+ years of software de...

Lead AI innovation within Microsoft's Azure Data team as a Principal Software Engineer. Design and develop core AI capabilities for PostgreSQL, including vector indexing and semantic search. This Redmond-based role requires deep expertise in systems programming (C/C++/Rust) and database engine ar...

Lead the development of a planet-scale, AI-integrated database as a Principal Software Engineer in Redmond. You'll operate services for major enterprise clients, ensuring SLA compliance with Kubernetes, Prometheus, and Grafana. This role requires deep expertise in cloud operations, compliance, an...

Lead backend development for Microsoft Security, building reliable, secure cloud systems in C++, C#, or Python. This senior role in Redmond requires 6+ years of secure software design, live site operations, and mentoring expertise. Help shape a security cloud that protects customers worldwide in ...

Lead the architecture for Microsoft's Azure Data platform, building the foundational database systems for the AI era. This principal engineer role in Redmond requires 6+ years of coding expertise in C/C++/C#/Java/Python and a background in computer science. You will define strategic roadmaps and ...

Lead the architecture of scalable backend and data systems for Microsoft 365 Copilot in Redmond. This principal role requires 8+ years of experience building large-scale, distributed systems in production. Drive engineering velocity and platform agility by designing core tools and mentoring teams.

Lead the future of AI-powered productivity as a Principal Software Engineering Manager on the OneNote team in Redmond. You will build transformative Copilot Notebook experiences, focusing on grounding capabilities and multi-modal AI. This role requires 6+ years of engineering experience, 1+ years...

Lead the architecture of Microsoft's global security cloud as a Principal Software Engineer. Design and develop large-scale distributed services using C#, Rust, Go, Java, or C++. This senior role in Redmond requires a BS in Computer Science, 6+ years of experience, and a passion for building secu...

Lead the development of next-generation Dynamics 365 applications on Azure as a Principal Software Engineer. This Redmond-based role requires 8+ years of coding expertise in C#/C++/Java and experience with enterprise-scale services. You will design and implement high-value solutions, collaboratin...

Lead the future of business applications as a Principal Software Engineer at Microsoft in Redmond. Design and deliver cutting-edge solutions within the Dynamics 365 and Power Platform suite. Leverage your 8+ years of expertise in C#, Java, or Python to build scalable, secure cloud services. This ...

Lead high-impact AI solutions as a Principal Software Engineer for the U.S. Public Sector. This hybrid role requires an active Secret clearance, 12+ years' experience, and expertise in Python, ML tooling, and cloud platforms. You will architect and deploy end-to-end systems, working on-site in th...

Lead the development of a global, serverless SaaS platform for data security and governance. This senior role requires 8+ years of engineering experience with expertise in microservices and distributed data frameworks like Apache Spark. Design and build scalable solutions that empower organizatio...

Lead the architecture for Control Plane drivers at Microsoft's Silicon team in Santa Clara. This senior role requires 6+ years in C/C++ and deep OS/kernel expertise to build scalable DPU solutions. You'll define roadmaps, mentor engineers, and impact Azure's core infrastructure.

Lead the architecture of scalable backend and ML systems to accelerate Microsoft 365 Copilot innovation. This principal role requires deep technical expertise in large-scale distributed systems and cross-team leadership. Join a focused team in Redmond to drive engineering velocity and platform ag...

Lead AI innovation for Microsoft's Dynamics 365 Contact Center as a Principal Software Engineer. Design and deploy scalable AI solutions, integrating LLMs and agentic systems on Azure. This Redmond-based role requires 6+ years of coding experience and deep expertise in GenAI. Build robust, produc...

Lead architectural innovation for AI and strategic initiatives at Microsoft. This hands-on Principal Engineer role strengthens platform resiliency and drives customer-focused solutions. Requires 6+ years of coding experience in C++, C#, Python, or Java. This position is based in the United States.

Lead the development of cutting-edge, user-facing Generative AI features at Microsoft in Redmond. As a Principal Software Engineer, you'll own projects from concept to delivery, working with top brands to drive AI transformation. Requires 6+ years of experience, Python expertise, and a strong bac...