Software Principal Engineer Jobs (On-site work)

Lead Microsoft's security mission as a Principal Software Engineer in Redmond. Design and build critical authentication and authorization systems using .NET, Rust, Java, and more. This role requires 6+ years of experience in secure software development and a passion for creating a safer digital w...

Join our Layer-7 Security team in Santa Clara as a Sr Principal Software Engineer. Innovate and design new security features for next-generation firewalls using C/C++. We seek a collaborative leader with deep networking and security protocol knowledge. Enjoy FLEXBenefits, stock units, and a bonus.

Lead the evolution of Microsoft's core cloud services as a Principal Software Engineer in Redmond. Design and deliver large-scale systems for OneDrive/SharePoint, focusing on migration, performance, and business continuity. Utilize your deep expertise in C#, Java, or Python to build resilient inf...

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 next wave of AI-powered shopping experiences at Microsoft in Vancouver. As a Principal Software Engineer, you will design and build robust, full-stack solutions for Copilot and Browsers. This role requires 6+ years of experience shipping production software and expertise in languages lik...

Lead the future of web browsing as a Principal Software Engineer for Microsoft Edge in Hyderabad. This role demands 10+ years of experience in backend engineering (C++, C#, Java, Python) and a proven track record of shipping large-scale, high-quality software. You will architect robust, scalable ...

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 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 Azure Data engineering team in Hyderabad, building the next-generation data platform for AI. Design and operate large-scale, distributed cloud services for usage billing, ensuring reliability and performance. Requires 12+ years of software engineering experience with expertise in cloud a...

Lead the DW Swift team in Belgrade, building next-gen engineering systems for Microsoft Fabric's SQL Data Warehouse. This role requires a technical leader with expertise in distributed systems (C++, C#, Java, Python) and people management. You will drive infrastructure that accelerates SaaS data ...

Lead the development of Microsoft's Titan data platform as a Principal Software Engineer in Hyderabad. You will architect and deliver large-scale, distributed systems using React, Python, and cloud technologies. This role requires 10+ years of experience, expertise in full-stack development, and ...

Lead the critical middle-tier service powering Microsoft 365 Copilot across web, Windows, and Mac. This Redmond-based role requires a Principal Engineering Manager with 6+ years of experience and deep expertise in Azure web services. You will design APIs, infrastructure, and deployment pipelines ...

Lead product-led growth for Microsoft 365 and Windows as a Principal Software Engineering Manager in Noida. You will guide a team, influence stakeholders, and optimize services to drive user acquisition and retention. Requires 10+ years of coding experience, 4+ in people management, and expertise...

Join Microsoft Ads in Bangalore as a Principal Software Engineer. Design and build robust, real-time data pipelines and feature materialization systems using Flink/Spark and Kafka. Own SLOs for large-scale, latency-sensitive platforms powering ML models, requiring strong C++/C#/Python skills and ...

Lead AI security initiatives for Microsoft Edge in Redmond. This principal engineering role requires deep expertise in AI/LLM security, threat research, and practical mitigation coding. You'll provide technical leadership on complex safety scenarios and browser-integrated AI defenses. A collabora...

Lead the identity strategy for Microsoft's consumer Copilot, ensuring secure and seamless authentication across all platforms. This principal engineering role requires deep expertise in identity systems and cross-platform delivery. Join a core team in Redmond to build the trusted foundation for p...

Lead the future of data platforms at Microsoft Azure in Redmond. As a Principal Software Engineer, you'll architect core database systems like Azure SQL DB and Cosmos DB, focusing on scalability and AI-driven innovation. Mentor a talented team while shaping the infrastructure powering a new class...