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Principal Software Engineer United States Jobs

467 Job Offers

Senior Principal Software Engineer
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Lead the modernization of critical healthcare applications as a Senior Principal Software Engineer. This hands-on technical role requires deep .NET, SQL Server, and legacy system expertise to drive architecture and unblock teams. Enjoy a remote-first culture with comprehensive benefits while shap...
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United States
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138568.00 - 221709.00 USD / Year
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One Call
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Software Engineer, Principal
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Seeking a Principal Software Engineer with Top Secret/SCI clearance to support the Air Force's C3BM Division and ABMS program. This role requires 20+ years of DoD experience, full lifecycle software development expertise, and IAT Level II certification. Join us in Bedford to develop resilient bat...
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United States , Bedford
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120506.00 - 145000.00 USD / Year
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DCS Corporation
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Principal Software Engineer - Storage
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Lead the design of Azure's hyperscale storage resiliency systems as a Principal Software Engineer. You will develop fault prediction, self-healing automation, and repair workflows for millions of SSD nodes. This role requires deep expertise in SSD firmware, NVMe, and large-scale reliability engin...
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United States , Aliso Viejo
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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 future of AI infrastructure at Microsoft Core AI in Redmond. Design and build high-scale distributed services for AzureML, powering next-gen LLMs like GPT-5. Requires 6+ years of coding experience and 3+ years in systems for large model training. Develop in C#/Go/Rust on Kubernetes to so...
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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 - Surface Team
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Lead the architecture for innovative Surface app experiences at Microsoft's Redmond HQ. As a Principal Software Engineer, you'll define technical vision, mentor teams, and build high-quality software for millions. Requires 6+ years in C++/C# and a passion for hardware-software integration. Enjoy ...
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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 future of security as a Principal Software Engineer at Microsoft in Redmond. Design and architect complex cloud solutions for the Microsoft Security platform, using your expertise in C#, Java, or Python. This role requires a Bachelor's degree, 6+ years of coding experience, and a passion...
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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's Business & Industry Copilots group as a Principal Software Engineer in Redmond. Drive AI innovation within the Copilot Studio team, designing and delivering cutting-edge SaaS applications. Leverage your 6+ years of coding expertise in C#, Java, Python, or similar to build and opt...
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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 Embedded Software Engineer
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Lead the embedded software strategy for cutting-edge 3D printers as a Principal Engineer in Somerville. You will architect scalable systems in C/C++, solve complex hardware-software challenges, and define the technical roadmap. This senior role requires deep expertise in shipping complex hardware...
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United States , Somerville
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175000.00 - 200000.00 USD / Year
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Formlabs GmbH
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Principal Software Engineer
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Lead AI-native security innovation at Microsoft in Redmond. As a Principal Software Engineer, you'll provide technical leadership, improve AI tools across the SDLC, and establish best practices. Requires a Bachelor's degree plus 6+ years of coding experience in C, C++, C#, Java, JavaScript, or Py...
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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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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 - C++
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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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Senior Principal Software Engineer - AI Governance
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United States , San Francisco
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165000.00 - 220000.00 USD / Year
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OneTrust
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Senior Principal Software Engineer - AI Governance
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United States , Atlanta
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165000.00 - 220000.00 USD / Year
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OneTrust
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Sr. Principal Software Engineer
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Lead backend architecture and development as a Sr. Principal Software Engineer in a remote U.S. role. Design, build, and operate scalable, reliable cloud-based systems and APIs. Provide technical leadership, mentor engineers, and enhance CI/CD practices. Requires 8+ years of backend expertise and...
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United States , Remote
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Not provided
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Zelis
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Principal Performance Software Engineer- Atlas
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Join our Atlas Systems Software Team as a Principal Performance Software Engineer in Waltham, USA. You will optimize real-time C++ software and deploy AI models on constrained hardware. Leverage your 8+ years of high-performance expertise to define compute budgets and drive key trade-offs. We off...
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United States , Waltham
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177207.00 - 243660.00 USD / Year
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Boston Dynamics
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Principal GenAI Software Engineer
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Lead the architecture and deployment of enterprise-scale GenAI solutions as a Principal Engineer. Design modular AI agents, establish engineering standards, and provide technical leadership. This Bellevue-based role requires 7+ years of experience and offers a competitive compensation package wit...
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United States , Bellevue
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173500.00 - 234700.00 USD / Year
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T-Mobile
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Principal /Senior Software Engineer - Backend
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Join Microsoft Security in Redmond as a Principal/Senior Backend Engineer. Design and develop a scalable enterprise platform for critical security services and Copilot experiences. Leverage 8+ years of coding expertise in C#, Java, Python, or similar to mentor teams and drive technical excellence...
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United States , Redmond
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119800.00 - 234700.00 USD / Year
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Microsoft Corporation
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Principal Software Engineer
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Lead the architecture of scalable, low-latency data systems and APIs that power personalized, context-aware intelligence for Microsoft Copilot. This principal role requires 6+ years of experience building secure, cloud-based services (Azure/AWS/GCP) in C++, C#, Java, or Python. You will design pe...
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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's Azure Data team as a Principal Software Engineer in Redmond. Design and develop high-performance database systems using C, C++, or C#. Lead critical projects, mentor engineers, and help build the data platform for the AI era. Requires 8+ years of experience and a background in da...
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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, CoreAI
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Lead the development of large-scale GenAI training infrastructure and tools at Microsoft in Redmond. As a Principal Software Engineer, you will design scalable, reliable systems for LLM fine-tuning and inference. This role requires deep expertise in distributed systems, cloud infrastructure, and ...
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United States , Redmond
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Salary
163000.00 - 296400.00 USD / Year
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Microsoft Corporation
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About the Principal Software Engineer role

Explore the pinnacle of a technical career with Principal Software Engineer jobs. This senior-level role represents the apex of individual contributor tracks, where technical mastery converges with strategic leadership. A Principal Software Engineer is not just a senior coder; they are the visionary architects and technical pillars of an organization, responsible for setting long-term technological direction and solving the most complex, large-scale challenges. Their work ensures that engineering efforts align with overarching business goals, creating robust, scalable, and future-proof systems.

Professionals in these roles typically shoulder a broad and impactful set of responsibilities. Central to their function is leading the architectural vision for major systems or entire platforms. They define the technical standards, select core technologies, and make critical decisions on system design with a focus on scalability, reliability, security, and performance. A significant part of their day involves deep collaboration, not only mentoring senior and junior engineers but also partnering with product managers, senior management, and other stakeholders to shape the technology roadmap. They are often the go-to experts for de-risking projects, conducting proof-of-concepts for new technologies, and providing technical guidance across multiple teams. Furthermore, they champion engineering excellence by driving initiatives around agile methodologies, CI/CD pipelines, DevOps practices, and robust quality assurance.

The typical skill set for a Principal Software Engineer is extensive and deep. A common requirement is 10+ years of progressive experience in software development, demonstrating a proven track record of designing, delivering, and maintaining complex, consumer-facing or enterprise-level systems. Expertise in modern technology stacks is essential, often including proficiency in languages like Java, Kotlin, C#, Python, or Go, and familiarity with front-end frameworks like React or Angular. A deep, practical understanding of distributed systems, cloud-native architectures (on platforms like AWS, Azure, or GCP), and containerization technologies like Docker and Kubernetes is standard. They are expected to be experts in API design, data modeling, and often, event-driven architectures using tools like Kafka. Beyond pure technical acumen, exceptional soft skills are non-negotiable. This includes superior communication abilities to articulate complex technical concepts to diverse audiences, strong leadership and mentorship capabilities, and outstanding analytical and problem-solving skills. While a Bachelor's degree in Computer Science is common, equivalent industry experience is often highly valued.

Ultimately, Principal Software Engineer jobs are for those who want to leave a lasting imprint on a company's technology. They are the strategic thinkers and technical pioneers who build the foundations upon which products and services thrive, making them one of the most critical and respected roles in the technology industry. If you are ready to guide technical strategy and mentor the next generation of engineers, exploring Principal Software Engineer jobs is your next career step.