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Principal Engineer - AI/ML United States Jobs

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Principal Software Engineer - CoreAI
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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...
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United States , Redmond
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139900.00 - 274800.00 USD / Year
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Microsoft Corporation
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Principal AI Engineer
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Lead AI innovation at Microsoft Security AI (NEXT) as a Principal AI Engineer. Drive 0→1 R&D for AI-native security products, from prototype to platform integration across Defender and Sentinel. This hands-on role in Redmond requires 8+ years of experience and expertise in Python/C++ to build the...
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United States , Redmond
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139900.00 - 274800.00 USD / Year
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Microsoft Corporation
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Principal Software Engineer - Identity
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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...
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United States , Redmond
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139900.00 - 274800.00 USD / Year
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Microsoft Corporation
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Sr Principal Software Engineer (L7 Security)
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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.
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United States , Santa Clara
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170000.00 - 277000.00 USD / Year
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Palo Alto Networks
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Principal Software Engineer
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Join Microsoft Discovery in Redmond as a Principal Software Engineer. You will architect a transformative AI-driven platform to accelerate scientific R&D. Lead the build of scalable distributed systems, mentor engineers, and integrate cutting-edge AI technologies. Requires 6+ years of software de...
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United States , Redmond
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139900.00 - 274800.00 USD / Year
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Microsoft Corporation
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Principal Software Engineer
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Join Microsoft Azure's SONiC team as a Principal Software Engineer. You will develop core switch software and distributed systems for cloud datacenters, tackling challenges like next-gen 100G-1.6T support. This role requires 6+ years in C/C++/Python and TCP/IP networking, with open-source (SONiC,...
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United States , Multiple Locations
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139900.00 - 274800.00 USD / Year
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Microsoft Corporation
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Principal Applied AI Engineer
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Lead AI architecture and development for Microsoft Dynamics 365 Sales and Service. Design and deploy scalable, production-ready AI solutions using LLMs and advanced ML. This senior role in Redmond requires deep engineering expertise and experience delivering enterprise-scale AI systems.
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United States , Redmond
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139900.00 - 274800.00 USD / Year
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Microsoft Corporation
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Principal Group Engineering Manager
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Lead the AI-powered Meeting Prep team at Microsoft, shaping the future of Calendar and Copilot. This senior role in Redmond requires a leader with 10+ years in engineering and deep expertise in distributed systems and applied AI. You will define the vision, build scalable platforms, and mentor a ...
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United States , Redmond
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163000.00 - 296400.00 USD / Year
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Microsoft Corporation
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Principal Software Engineer
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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...
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United States , Redmond
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139900.00 - 274800.00 USD / Year
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Microsoft Corporation
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Principal Software Engineer
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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...
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United States , Redmond
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139900.00 - 274800.00 USD / Year
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Microsoft Corporation
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Principal Security Engineer
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Join Microsoft's Red Team in Redmond as a Principal Security Engineer. Emulate real-world adversaries to discover and exploit vulnerabilities across large-scale cloud and AI services. Leverage 6+ years of security experience and coding in C#, Python, or similar to lead offensive operations and dr...
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United States , Redmond
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139900.00 - 274800.00 USD / Year
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Microsoft Corporation
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Principal Software Engineer
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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...
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United States , Redmond
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163000.00 - 296400.00 USD / Year
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Microsoft Corporation
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Principal Software Engineer- Azure Storage
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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...
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United States , Multiple Locations
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139900.00 - 274800.00 USD / Year
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Microsoft Corporation
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Principal Engineer- Systems and V&V
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Lead Systems and V&V engineering for a complex medical device from concept through commercialization. This Batesville-based role requires 5+ years' experience, proficiency in tools like DOORS and MATLAB, and deep knowledge of medical device regulations. Enjoy comprehensive benefits, including hea...
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United States , Batesville
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104000.00 - 143000.00 USD / Year
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Baxter
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Principal Software Engineer - Backend
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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 ...
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United States , Redmond
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139900.00 - 274800.00 USD / Year
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Microsoft Corporation
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Principal Software Engineer
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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...
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United States , Redmond
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139900.00 - 274800.00 USD / Year
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Microsoft Corporation
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Principal Software Engineering Manager
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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...
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United States , Multiple Locations
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139900.00 - 274800.00 USD / Year
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Microsoft Corporation
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Principal Architect Engineer
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Shape the future of AI and cloud computing as a Principal Architect at Microsoft. You will lead architectural improvements to optimize efficiency across the entire AI stack—from software to hardware. This role requires deep technical expertise in systems engineering and coding to influence high-i...
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United States , Multiple Locations
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163000.00 - 296400.00 USD / Year
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Microsoft Corporation
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Principal Software Engineer - Copilot Security
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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...
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United States , Redmond, WA
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163000.00 - 296400.00 USD / Year
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Microsoft Corporation
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Principal Design Verification Engineer
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Join Microsoft's Silicon team as a Principal Design Verification Engineer in Mountain View. You will lead pre-silicon verification for cutting-edge cloud infrastructure, developing complex test environments and debugging at IP and SOC levels. This role requires 8+ years of experience with Verilog...
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United States , Mountain View
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139900.00 - 274800.00 USD / Year
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Microsoft Corporation
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Embark on a leadership career at the pinnacle of technical innovation by exploring Principal Engineer - AI/ML jobs. A Principal Engineer in Artificial Intelligence and Machine Learning is a strategic visionary and a technical master, responsible for setting the technological direction for an organization's most ambitious AI initiatives. This is not an individual contributor role in the traditional sense; it is a force multiplier, blending deep hands-on expertise with architectural oversight, mentorship, and cross-functional leadership to transform complex business problems into scalable, intelligent solutions powered by AI. Professionals in these senior roles typically bear a comprehensive set of responsibilities. They lead the architectural design and long-term strategy for AI/ML systems, ensuring they are robust, scalable, and aligned with business objectives. A key part of their duties involves conducting research and development to evaluate and integrate state-of-the-art algorithms and models, pushing the boundaries of what is technically possible. They provide technical leadership and mentorship to engineering teams, elevating the entire organization's capabilities through code reviews, best practice dissemination, and setting high standards for quality and innovation. Principal Engineers are also crucial in driving the entire machine learning lifecycle, from data acquisition and pipeline creation to model training, deployment, monitoring, and continuous iteration in production environments. They act as a bridge, communicating complex technical concepts to non-technical stakeholders and collaborating with product managers, data scientists, and business leaders to ensure successful project outcomes. Furthermore, they are often tasked with establishing technical governance, making critical stack and tooling decisions, and identifying and mitigating technical risks. To qualify for Principal Engineer - AI/ML jobs, candidates must possess a formidable combination of education, experience, and skills. Typically, a Master's or Ph.D. in Computer Science, Statistics, or a related field is expected, coupled with 10+ years of progressive software engineering experience, with a significant portion dedicated to AI/ML. A deep, practical understanding of machine learning frameworks like TensorFlow or PyTorch is essential, as is proficiency in programming languages such as Python, Java, or Scala. Expertise in cloud platforms (AWS, GCP, Azure) and MLOps practices for automating the ML lifecycle is a standard requirement. Beyond technical prowess, successful candidates demonstrate exceptional leadership, strategic thinking, and communication skills. They have a proven track record of architecting and delivering complex, large-scale AI systems into production and possess the ability to mentor senior engineers and influence technical strategy across an organization. If you are ready to shape the future of technology and lead from the front, discovering the right Principal Engineer - AI/ML jobs is your next critical step.

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