Software Principal Engineer Jobs

Lead the evolution of our global financial data extraction platform as a Principal Software Engineer. Design and scale reliable systems that process diverse filings using AI and deterministic methods. Your mission is to architect trustworthy, automated solutions to reduce manual dependency. This ...

Lead the development of API-first product platforms at AlphaSense in Helsinki. Design and build high-scale, reliable APIs that power multiple products and agentic workflows. This principal role combines hands-on engineering with cross-team technical leadership. Enjoy flexible work, relocation sup...

Join Microsoft's Azure Data team to build the next-generation database cloud services powering the AI era. As a Principal Software Engineer, you will develop and operate large-scale distributed systems for Azure MySQL. This role in Redmond requires strong coding skills and experience with cloud s...

Lead the architecture of mission-critical Azure cloud services as a Principal Software Engineer in Taipei. This role requires 6+ years of experience with C/C++/C#/Python and expertise in designing high-scale, low-latency systems. You will provide technical leadership, ensure system reliability, a...

Lead a high-impact team in Vancouver, redefining collaboration in Microsoft Teams. Drive PowerPoint Live's core performance, scalability, and security while innovating with Copilot-powered experiences. Shape technical direction and culture, mentoring engineers to build the future of real-time pre...

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...

Lead the development of Azure's high-performance Lustre file system, the foundation for AI storage. This principal engineer role in Pittsburgh involves end-to-end platform delivery, performance optimization, and solving complex technical challenges. Requires 6+ years of coding experience in C/C++...

Join Microsoft's Edge Core AI team as a Principal Software Engineer in Redmond. Lead the development of flagship Copilot experiences using React and modern C++/C#. Drive innovation at the intersection of AI and browser technology for hundreds of millions of users. This high-profile role requires ...

Lead the architecture of Microsoft 365 Copilot's core fine-tuning platform in Geneva. Design secure, large-scale distributed systems for tenant-isolated AI personalization using models like GPT and Mistral. Drive the technical vision for the Heron platform, ensuring scalability and compliance acr...

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 future of High-Performance Computing and AI as a Principal Software Engineer in Bangalore. Develop production software in C, C++ and Fortran for cutting-edge HPC/AI stacks. This senior role requires 10+ years' experience, offering a competitive salary, flexible work, and professional gro...

Lead the Sentinel Enterprise Readiness team as a Principal Software Engineer Manager in Redmond. You will architect critical security platforms, including RBAC and Customer-Managed Keys, for hyperscale cloud services. This role requires 6+ years of coding experience and 2+ years managing a team o...

Join our Layer-7 Security Software team as a Principal Engineer in Santa Clara. You will innovate and own critical components of our Next-Generation Firewall, using C and cloud technologies. Develop high-performance, scalable security features that power our flagship products. A can-do attitude a...

Join HPE's Private Cloud Engineering team in Galway as a Principal Software Engineer. Leverage your 10+ years of experience in Java, Python, and backend development to design and deliver scalable software solutions. You will lead system design, work with cloud technologies, and drive innovation i...

Lead the technical vision as a Principal Software Engineer at Automata, shaping scalable, software-defined lab automation in London. You'll architect our core platform using Golang, Kubernetes, and distributed systems, with 12+ years of backend expertise. Mentor senior engineers, enjoy comprehens...

Lead the Azure Data engineering team in Hyderabad, building the foundational data platform for the AI era. This role requires 15+ years in distributed systems and cloud services, plus 4+ years managing teams. You will define strategy for reliability, security, and AI-driven automation across prod...

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...

Lead the development of Azure Database for PostgreSQL as a Principal Software Engineer in Bangalore. Design and build scalable, reliable migration features for this globally distributed cloud service. Leverage 12+ years of systems programming expertise in C++/Rust/C# and deep database architectur...

Lead a high-impact engineering team in Dublin, driving Copilot and Microsoft 365 growth. This role requires a technical leader with 6+ years' experience in C#, Java, or Python to architect scalable services and mentor talent. Join a collaborative, fast-paced environment shaping how users adopt Mi...

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...