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Principal Software Engineer United States Jobs (Hybrid work)

188 Job Offers

Principal Research Software Engineer
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Join Microsoft Research as a Principal Research Software Engineer in Redmond, WA. Lead the AI Agentic Core Team to build AI-driven systems and platforms that accelerate research into real-world products. Requires a Bachelor's in CS and 6+ years coding in Python, Rust, or C++. Design agentic AI fr...
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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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Principal Software Engineer role on Microsoft’s AEGIS team, the security backbone of IC3. You will define technical strategy for multi-service security platforms and AI-driven vulnerability detection. Requires 6+ years coding in C, C++, C#, Java, JavaScript, or Python, plus a Bachelor’s in CS. Ba...
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United States , Redmond
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142800.00 - 274800.00 USD / Year
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Microsoft Corporation
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Principal Software Engineer
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Principal Software Engineer role on Microsoft’s Edge Web Platform team in Redmond, WA. You will shape core web primitives like DOM and HTML, drive web standards, and deliver high-performance, interoperable solutions across Chromium. Requires 6+ years in C, C++, or Rust with strong systems thinkin...
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United States , Redmond
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142800.00 - 304200.00 USD / Year
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Microsoft Corporation
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Principal, Software Engineer
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Join Walmart’s People Technology team as a Principal, Software Engineer in Bentonville, AR. Architect scalable, mission-critical systems driving modernization. Requires 10+ years in large-scale distributed systems, expertise in React, Node.js, Java, and cloud platforms (Azure/GCP). Lead engineers...
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United States , Bentonville
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110000.00 - 220000.00 USD / Year
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Walmart
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Member Of Technical Staff, Principal Software Engineer - Windows Copilot
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Join Microsoft as a Principal Software Engineer on the Windows Copilot team in Redmond, WA. You will design and build next-gen AI features and secure platform services, leveraging C, C++, C#, or Python. This role requires 12+ years of experience and hands-on use of modern AI coding agents. Drive ...
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United States , Redmond
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142800.00 - 331200.00 USD / Year
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Microsoft Corporation
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Principal Software Engineer
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Principal Software Engineer role at Amgen in Tampa, FL. Lead full-stack development and mentor teams using cloud technologies (AWS preferred) and Python. Drive innovative solutions with generative AI, microservices, and robust software architecture. Enjoy competitive benefits including health pla...
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United States , Tampa
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157020.50 - 212439.50 USD / Year
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Amgen
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Principal Software Engineer, Android
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Principal Software Engineer, Android – Milwaukee. Join Baxter to architect robust Android software for life-saving medical devices. Leverage expertise in Java/Kotlin, Android SDK, and regulated industry standards (IEC 62304). Enjoy top benefits including medical/dental from day one, ESPP, and pai...
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United States , Milwaukee
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112000.00 - 154000.00 USD / Year
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Baxter
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Principal Software Engineer
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Principal Software Engineer sought for Microsoft’s Bing IndexServe team in Redmond, WA. Drive large-scale distributed systems (100K+ nodes) powering search, recommendation, and AI services. Lead architecture for cutting-edge LLM, Ranking, and Index Serving, collaborating with ML/AI data scientist...
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United States , Redmond
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165600.00 - 296400.00 USD / Year
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Microsoft Corporation
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Principal Software Engineer
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Principal Software Engineer role in Redmond, WA, driving Cloud + AI + Agentic architecture for Microsoft’s Customer Success and Consulting. Lead technical roadmap, establish architectural guardrails, and influence cross-team engineering decisions. Requires 6+ years coding in Python, C#, or Java w...
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United States , Redmond
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142800.00 - 274800.00 USD / Year
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Microsoft Corporation
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Principal Software Engineer
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Microsoft Security seeks a Principal Software Engineer in Redmond, WA to lead AI-first, high-scale service architecture. You will drive infrastructure security, mentor teams, and innovate on cloud solutions using C#, Python, or Java. Requires 6+ years experience, a CS degree, and expertise in LLM...
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United States , Redmond
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139900.00 - 304200.00 USD / Year
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Microsoft Corporation
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Principal Software Engineer
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Principal Software Engineer role at Walmart Global Tech, shaping systems for 240M+ customers. Lead design and launch of high-impact distributed systems using React, Node.js, Java, and cloud services. Requires 10+ years experience in service-oriented architecture and end-to-end ownership. Based in...
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United States , Sunnyvale, CA; Bentonville, AR
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143000.00 - 286000.00 USD / Year
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Walmart
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Principal Software Engineer
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Principal Software Engineer role on Microsoft’s Copilot Studio Knowledge team in Redmond, WA. You’ll build cutting-edge Generative AI features, improve service scalability, and define architecture using C#, Python, or Java. Requires 6+ years of engineering experience, AI tool proficiency, and ent...
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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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Principal Software Engineer sought to define the long-term technical vision for Microsoft’s geospatial and location services platform. You will lead architectural decisions, drive cross-team alignment, and ensure mission-critical reliability at the intersection of AI, Search, and Geospatial Intel...
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United States , Redmond
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142800.00 - 274800.00 USD / Year
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Microsoft Corporation
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Principal Software Engineer
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Principal Software Engineer role at ASML Brion in San Jose, US. Drive computational lithography innovation for advanced microchip manufacturing. Requires 15+ years in semiconductor lithography, OPC, ILT, and optical physics expertise. Lead product lifecycle from design to customer deployment. Ben...
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United States , San Jose
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223125.00 - 334688.00 USD / Year
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ASML
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Principal Software Engineer
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Principal Software Engineer role in Redmond, WA, driving technical direction for Microsoft’s real-time advertising mediation platform (MMS) built on Go and Prebid Server. You will own architecture decisions for global-scale OpenRTB auctions, header-bidding, and experimentation across Outlook, MSN...
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United States , Redmond
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139900.00 - 304200.00 USD / Year
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Microsoft Corporation
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Principal Software Engineer - Finance Data & Experiences
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Lead AI-driven innovation as a Principal Software Engineer on Microsoft’s Finance Data & Experiences team in Redmond. Design scalable, secure solutions using C#, Python, and Azure OpenAI, while mentoring engineers and driving cross-functional impact. Ideal for experts with 8+ years in software en...
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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 architecture and AI-native development as a Principal Software Engineer on Microsoft’s Garage Innovation Studio. Drive React, Azure Functions, and agentic AI workflows to build hackathon and idea-acceleration products. Requires 6+ years coding in C++, Java, or Python, with expertise in agent...
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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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Principal Software Engineer sought for HPE Morpheus in Ft. Collins, CO. Drive backend development with Java, Python, and RESTful APIs in Linux environments. Leverage 10+ years of experience in cloud technologies (AWS, Azure), CI/CD, and virtualization. Enjoy health benefits, professional growth, ...
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United States , Ft. Collins
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152000.00 - 349000.00 USD / Year
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Hewlett Packard Enterprise
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Principal Software Engineer - Backend - Architecture & Design
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Principal Software Engineer – Backend role at Microsoft Security in Redmond, WA. Design and implement high-quality, maintainable code for Microsoft Defender for Office, integrating AI capabilities and GPU utilization. Requires 6+ years in C, C++, C#, Java, or Python with a Bachelor’s in CS. Join ...
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Location
United States , Redmond
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Salary
139900.00 - 274800.00 USD / Year
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Microsoft Corporation
Expiration Date
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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
https://www.microsoft.com/ Logo
Microsoft Corporation
Expiration Date
Until further notice
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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.