Software Engineer, Principal Jobs

Lead and grow a high-impact engineering team at Microsoft, driving AI performance optimization for large-scale model training and inference. This Principal Software Engineering Manager role in Redmond requires deep expertise in GPU architecture, C/C++/Python, and managing cross-layer AI software ...

Lead the development of critical monitoring and alerting for Microsoft 365 Resilience, including Copilot. As a Principal Software Engineer, you will architect robust reliability measures like Graceful Degradation across core platforms. Requires a BS in CS with 12+ years coding in C, C++, C#, or P...

Principal Software Applications Development Engineer sought in Bangkok, Thailand. This senior role demands Java, C++, Python, and agile expertise to design, optimize, and test complex applications. You will mentor junior developers and drive user-focused solutions. Join a dynamic team to lead cri...

Principal Software Engineer role in Redmond, WA, driving GPU inference optimization and LLM/SLM architecture for Microsoft’s AI monetization platform. You’ll accelerate deep learning inference across Copilot, Search, and Ads, bridging cutting-edge AI with business impact. Requires 8+ years in C++...

Principal/Senior Software Engineer – Identity Security at Palo Alto Networks in Tel Aviv. Drive innovation securing identities across hybrid and SaaS landscapes using cloud-native tech (Kubernetes, Docker, AWS/GCP/Azure). Requires 5+ years backend experience, AI-assisted development skills, and a...

Join Palo Alto Networks as a Principal/Senior Software Engineer in Tel Aviv, shaping the future of Identity Security. You'll architect scalable, cloud-native solutions using Kubernetes, Docker, and microservices to secure hybrid and SaaS landscapes. Leverage AI tools like Gemini and Claude to dri...

Principal Software Engineer sought by RX Global in Richmond, UK. Drive domain architecture, mentor senior engineers, and own technical roadmaps for high-impact systems. Requires deep expertise in distributed systems, cloud-native AWS solutions, and legacy modernisation. Lead through influence, ba...

Principal Software Engineer at Microsoft Azure Data in Tokyo, Japan. Design and implement core PostgreSQL features, including planner, executor, and replication. Requires 6+ years of C/C++/C#/Java/Python experience and deep database internals knowledge. Join a world-class team building the data p...

Join Microsoft’s Azure Resource Graph team as a Principal Software Engineering Architect. Lead the evolution of big data, LLM, and agentic platforms, designing scalable distributed systems. Requires 8+ years in C, C++, C#, Java, JavaScript, or Python. Drive AI adoption and build high-performance ...

Principal Software Engineer role in Redmond, WA, driving AI-powered operations for Microsoft Azure. You will design scalable ML infrastructure, embed automation, and enhance cloud reliability. Requires expertise in distributed systems, C#/Java/Python, and cloud-native architectures. Join a collab...

Principal Software Engineer at Microsoft – join the Copilot Studio team in Redmond, WA to build high-scale, AI-powered low-code experiences. You’ll lead front-end architecture for intelligent agents used by millions, driving technical strategy and mentoring senior engineers. Requires 6+ years in ...

Principal Software Engineer role on Microsoft’s Azure AI Core team in Mountain View, CA. Design and build scalable, high-performance AI systems for real-time audio, image, and video generation. Requires 6+ years in distributed systems, API design, and AI/ML solutions with C#, Python, or Java. Joi...

Lead a high-impact team at Microsoft as a Principal Software Engineering Manager for the CoreAI Simulation Platform. Drive the design and development of AI chip simulators, leveraging deep expertise in C++, Python, and computer architecture. Manage cross-disciplinary engineers in multiple US loca...

Lead the engineering of Azure Storage’s foundational distributed file system as a Principal Software Engineering Manager. This role requires deep expertise in C/C++ and large-scale systems, with a focus on architecting solutions for Microsoft’s cloud. You will drive product strategy, mentor a col...

Principal Software Engineer role at Microsoft in Mountain View, CA, driving AI-first architecture for Power Platform and Dynamics 365. You will design high-scale distributed systems on Linux/Kubernetes using Python and FastAPI, lead incident response, and ensure global reliability. Requires 6+ ye...

Lead the development of Microsoft's CoreAI platform as a Principal Software Engineer in Redmond. Architect scalable, cloud-native systems for next-gen AI agents and foundational AI services. Requires 6+ years of experience with C++, C#, Python, or Java. Shape the product vision and drive engineer...

Lead the design of scalable AI agent platforms within Microsoft's Copilot Studio in Redmond. This Principal Software Engineer role requires 6+ years of experience in C#, Java, Python, or similar. You will drive architecture for Digital Workers, collaborating across Azure and Power Platform teams ...

Lead the future of AI-powered software testing as a Principal Software Engineer on Microsoft's Playwright team. Design and implement AI-native capabilities for the core automation framework, integrating with GitHub and VS Code. This Redmond-based role requires deep expertise in AI/LLM models, bro...

Lead the design of multi-tenant enterprise platforms for Microsoft's Dynamics 365 suite in Redmond. This principal role requires 6+ years of coding expertise in C#, Java, or Python. Drive product improvements and automate solutions within a leading SaaS environment, collaborating on innovative bu...

Lead the future of AI-powered search as a Principal Software Engineer at Microsoft Azure AI in Redmond. Shape end-to-end developer experiences for Azure AI Search, turning ambiguous needs into scalable, reliable features. Leverage 6+ years of cloud service expertise and technical leadership to dr...