Software Engineer, Principal Jobs

Lead AI innovation at Microsoft as a Principal Software Engineer. You will architect and build scalable NL2KQL systems, translating natural language into precise security queries. This role requires strong technical leadership in software engineering and AI, with 6+ years of coding experience. Jo...

Lead the design and delivery of Azure's core cloud platform as a Principal Software Engineer in Hyderabad. Leverage your 10+ years of experience in Linux systems, OS fundamentals, and software development to build scalable, foundational systems. This role offers deep technical leadership, mentors...

Lead the development of globally scalable Azure PostgreSQL services in Belgrade. This senior role requires 8+ years in software engineering and expertise in large-scale, data-intensive systems. You will architect, drive projects, and ensure high reliability for a market-leading cloud database use...

Lead the architecture of Azure OpenAI's high-scale inference platform in Hyderabad. Design and optimize systems for billions of daily requests, focusing on low latency and high throughput. This principal role requires 12+ years' experience and passion for building reliable, AI-driven services.

Seeking a Principal Software Engineer with an active TS/SCI/Full Scope Polygraph. This role in Annapolis Junction, MD requires expertise in Java, Linux, Bash/Python, and Apache NiFi for designing and troubleshooting complex data flows. A Master's degree plus 10 years of SWE experience is required...

Lead a team building data pipelines and ML models to secure over a billion customers. This Principal Manager role in Redmond requires 6+ years of coding experience and a background in Computer Science. You will guide AI integration across the SDLC and foster a data-driven security culture.

Lead full-stack development for innovative banking solutions as a Principal Engineer. This role requires deep expertise in Angular, TypeScript, and Spring Boot Java to build microfrontends and scalable microservices. Enjoy competitive benefits and flexible work arrangements in key US locations. D...

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...

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 ...