Software Engineer, Principal United States Jobs

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 the future of AI-scale storage as a Principal Software Engineer on Azure Storage. Design and optimize the high-performance control plane for massive, distributed systems. Leverage 5+ years of storage and cloud-native expertise to solve scalability challenges. This remote US role drives innov...

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 development of Microsoft's next-generation AI-driven auto-bidding platform. Architect large-scale distributed systems using C++, Python, or C# to process billions of daily auctions. Collaborate with ML experts to build agentic AI that autonomously optimizes real-time ad performance. This...

Lead the development of Azure's next-generation AI networking infrastructure at Microsoft. Manage a team building high-performance, distributed systems for large-scale AI training. This role requires extensive experience in C++/Python and distributed systems within cloud/AI. Drive innovation at t...

Lead the security of Microsoft's agentic AI future as a Principal Software Engineer. Design and ship AI-powered defenses and secure orchestration frameworks for Copilot at global scale. This Redmond-based role requires 8+ years building large-scale, security-critical systems and expertise in agen...

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 AI-powered security for Microsoft Copilot as a Principal Software Engineer. Design and ship agentic AI defenses against emerging threats like prompt injection, enabling safe orchestration across platforms. This hands-on role in Redmond requires deep expertise in building s...

Lead the evolution of Azure's Hybrid connectivity for AI workloads at cloud scale. This Principal Software Engineer role requires deep L2-L4 networking expertise (TCP/IP, BGP, VXLAN) and 6+ years coding in C/C++/Python. Design and operate hyper-scale SDN/NFV infrastructure from multiple US locati...

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 the next generation of Azure Kubernetes Service (AKS) as a Principal Software Engineer. Design and build scalable, fault-tolerant distributed systems for AI and cloud-native workloads. This role requires deep expertise in C/C++/Go/Python and production cloud infrastructure. Enjoy flexible, r...

Lead the future of Azure infrastructure as a Principal Software Engineer. Design and deliver next-generation AI training and inferencing platforms, diving deep into diverse hardware and software layers. This role requires 6+ years of coding experience in C/C++/C#/Python and offers the chance to d...

Lead AI-driven innovation as a Principal Associate Data Scientist. Develop machine learning models using Python, AWS, and Spark on vast datasets. This role requires a quantitative Master's/PhD and experience in analytics. Enjoy competitive benefits in McLean, New York, or San Jose.

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...