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Principal Software Engineer United States Jobs

467 Job Offers

Principal Software Engineer
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Join our robotics team in Waltham as a Principal Software Engineer. You will architect and optimize critical perception systems for our Stretch robot, using C++/Python. Lead technical excellence, mentor engineers, and work with computer vision and ML. We offer competitive benefits including medic...
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United States , Waltham
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173732.00 - 238882.00 USD / Year
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Boston Dynamics
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Principal Software Engineer - M365 Core
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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 Quantum Error Correction Software Engineer
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Join Microsoft Quantum in Redmond to pioneer scalable quantum computing. As a Principal Software Engineer, you'll design fault-tolerance infrastructure and advance quantum error correction codes. This role requires a PhD/Master's in a relevant field and 3+ years of software industry experience. 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
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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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Senior Principal Software Engineer - UI
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United States , Raleigh
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128000.00 - 176000.00 USD / Year
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Baxter
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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
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Lead the future of cloud computing as a Principal Software Engineer in Redmond. Design and develop large-scale distributed services for Azure Virtual Desktop and Windows 365. Leverage your expertise in C#, ASP.NET, and Kubernetes (AKS) to build innovative, AI-powered experiences. Join a fast-grow...
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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, Money Infrastructure
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Lead the financial backbone powering monetization at Replit. Design and scale core money infrastructure for billing, payments, and global commerce. Requires 8+ years of backend expertise in high-correctness domains like subscriptions or payment platforms. Enjoy competitive benefits and an autonom...
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United States , Foster City
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250000.00 - 340000.00 USD / Year
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Replit
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Principal Software Engineer (CoreAI)
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Lead the strategic vision for Microsoft's enterprise AI platform in Redmond. Design and develop core services, APIs, and security features for the Foundry Platform. Requires 6+ years in large-scale cloud systems and a passion for AI-first development. Drive innovation in a role shaping the future...
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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 365 Copilot's core Agent Platform in Redmond. Design and build a modular, event-driven platform for real-time orchestration and long-running tasks. This principal role requires 8+ years of coding expertise (C++, C#, Python, etc.) and offers technical leadership 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, AV Platform Core
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Lead the foundational software for GM's autonomous future as a Principal Software Engineer in Sunnyvale. Design and implement complex, low-latency systems on custom embedded Linux/RTOS platforms using C and accelerator hardware. This senior role requires technical leadership, consensus-building, ...
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United States , Sunnyvale
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238700.00 - 365700.00 USD / Year
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General Motors
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Principal Software Engineer
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Join Microsoft Azure as a Principal Software Engineer. Design and develop core system software for the massive-scale Azure Storage platform, leveraging technologies like FPGAs and RDMA. This role requires 6+ years of experience coding in C/C++, Rust, or Python. Drive cloud-scale innovation from m...
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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 Embedded Software Engineer
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United States , Los Angeles
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165000.00 - 215000.00 USD / Year
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Silvus Technologies (International)
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Senior Principal Software Engineer
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Lead groundbreaking SASE technology as a Senior Principal Software Engineer in Santa Clara. Design and develop high-performance networking data path software using C and DPDK. This technical leadership role requires 10+ years of experience in system software and data plane architecture. Drive ful...
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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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Lead the architecture for Microsoft's global Secure Access Service Edge (SASE) platform. As a Principal Software Engineer, you will define the technical roadmap for identity-aware security and networking services. Drive engineering excellence and AI adoption in a high-scale, cloud-native environm...
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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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Software Engineer, Principal
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Seeking a Principal Software Engineer in Bedford to support critical Command, Control, and Battle Management (C3BM) programs. This role requires a Top Secret/SCI clearance, 20+ years of experience, and expertise in the full DoD software development lifecycle. Join our team to develop resilient sy...
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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, Backend
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Lead backend development for Microsoft Security in Redmond. Design high-scale microservices using C#, Java, or Python to build a safer digital world. This senior role requires a Bachelor's degree and 6+ years of experience architecting reliable, efficient cloud solutions. Embrace a growth mindset...
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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 the future AI agent platform at Microsoft in Redmond. As a Principal Full Stack Engineer, you will architect end-to-end solutions using TypeScript, React, Python, and Node.js. Build cutting-edge tools that integrate advanced LLMs and power enterprise automation. Join a mis...
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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 Defender for Office team in Redmond as a Principal Software Engineer. Lead the design of secure, scalable cloud foundations to protect against advanced email and collaboration threats. Requires 6+ years of coding experience and expertise in secure development for cloud services. ...
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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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Salary
139900.00 - 274800.00 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.