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Principal Software Engineer United States Jobs

467 Job Offers

Principal Software Engineer - ADEM Agent (Client/Endpoint Focus)
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Lead the architectural vision for the ADEM Agent at Palo Alto Networks. As a Principal Engineer, you'll design high-performance, cross-platform endpoint software using C/C++/Rust/Go. Tackle scale, security, and performance challenges for the world's largest enterprises from Santa Clara.
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United States , Santa Clara
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Salary
147000.00 - 237500.00 USD / Year
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Palo Alto Networks
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Principal Software Engineer - ADEM Agent (Client/Endpoint)
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Lead the architecture of the ADEM Agent as a Principal Software Engineer in Santa Clara. Design high-performance, cross-platform endpoint software (Windows, macOS, Linux) using C/C++, Rust, or Go. Tackle scale and security challenges at the forefront of digital experience management, with a compe...
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United States , Santa Clara
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Salary
147000.00 - 237500.00 USD / Year
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Palo Alto Networks
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Principal Software Engineer (Backend)
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Lead the architectural vision for a cutting-edge SASE observability platform at Palo Alto Networks. As a Principal Backend Engineer in Santa Clara, you'll design systems handling billions of daily events using Rust/Go on GCP. Leverage AI-augmented development to solve complex distributed challeng...
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United States , Santa Clara
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Not provided
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Palo Alto Networks
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Principal Software Engineer
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Lead the development of the Prisma Access Linux client as a Principal Software Engineer in Santa Clara. Utilize your 8+ years of experience in Linux systems programming (C/C++) and deep kernel knowledge to build secure, scalable network security solutions. You will design architectures, mentor th...
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United States , Santa Clara
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Salary
147000.00 - 237500.00 USD / Year
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Palo Alto Networks
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Principal Quantum Error Correction Software Engineer
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Join Microsoft Quantum as a Principal Software Engineer focused on Error Correction. Design novel fault-tolerance strategies and advance quantum error correction codes in a multidisciplinary team. This role in Redmond requires a PhD or equivalent and 5+ years of software industry experience. Help...
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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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Principal Software Engineer
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Lead the architecture of secure, sovereign cloud solutions at Microsoft. Design scalable, resilient services that ensure data residency and compliance for global customers. This senior role in Redmond requires deep technical expertise in cloud engineering and U.S. citizenship.
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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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Principal Software Engineer
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Lead AI-powered cloud reliability as a Principal Software Engineer at Microsoft in Atlanta. Design scalable ML infrastructure and automation to enhance Azure's security and performance. Leverage your deep expertise in distributed systems and coding (C++, Python, etc.) to mentor teams and drive op...
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United States , Atlanta
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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 Web Data Platform Team as a Principal Software Engineer in Redmond. Architect and scale the core web crawler processing tens of billions of URLs daily. Lead the containerization and next-gen development of this global, intelligent platform using C++, C#, or Python. Drive architec...
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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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Software Engineer, Principal
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Seeking a Principal Software Engineer with Top Secret/SCI clearance in Bedford. This role supports critical C3BM and ABMS programs, requiring 20+ years of DoD experience and full lifecycle software development expertise. Enjoy a comprehensive benefits package including medical, 401k, and ESOP whi...
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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-Fullstack-CoreAI
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Lead the development of intuitive, full-stack AI agent platforms at Microsoft CoreAI in Redmond. Architect and build cutting-edge UI experiences with React, TypeScript, and NextJS, integrating advanced LLMs. This principal role requires 6+ years of experience shaping scalable, enterprise-grade 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 Manager
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Lead the architecture and live-site excellence of Microsoft 365 client deployment services in Redmond. You will build large-scale distributed systems for safe, data-driven release orchestration and automated recovery. This role requires strong technical engineering experience and a focus on relia...
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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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Principal Software Engineer
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Lead the evolution of Microsoft's Core AI platform as a Principal Software Engineer in Redmond. Drive architectural decisions for large-scale, intelligent agent systems, integrating cutting-edge generative AI. Provide technical leadership across the full SDLC, ensuring quality, security, and reli...
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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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Principal Software Engineer
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Join Microsoft's Real-Time Communications team in Redmond as a Principal Software Engineer. Build the unified AI infrastructure powering Teams and Copilot, processing millions of daily sessions. Design scalable services using C++, C#, or Python to enable real-time, intelligent collaboration. Driv...
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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 cloud-based solution development for capital markets clients as a Principal Software Engineer. This global role requires 6+ years of coding expertise (C#, Java, Python, etc.) and experience with financial compliance regulations. You'll architect solutions alongside customers and internal tea...
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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 Software Engineer
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Join Palo Alto Networks as a Principal Software Engineer in Santa Clara. Design and build scalable, distributed backend services for the cutting-edge Prisma Access cloud security platform. Leverage your 8+ years of experience in Go/Python/Java and cloud infrastructure (AWS/GCP/Azure) to develop c...
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Location
United States , Santa Clara
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Salary
147000.00 - 237500.00 USD / Year
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Palo Alto Networks
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Principal Software Engineer
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Join our Cortex backend engineering group as a Principal Software Engineer in Santa Clara. You will lead the development of core products like XSOAR and XDR, using Go/Python in a microservices cloud environment. We seek an expert with 8+ years' experience to drive innovation and solve complex pro...
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United States , Santa Clara
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Salary
147000.00 - 237500.00 USD / Year
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Palo Alto Networks
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Principal Software Engineer - Performance Tooling
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Lead performance optimization for cutting-edge AI models at Microsoft. As a Principal Software Engineer, you'll enhance inference speeds for OpenAI and other LLMs across the AI stack. This role in Redmond involves deep profiling, debugging, and optimization on CPUs/GPUs. Requires 6+ years with 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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Principal Software Development Engineer
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Lead firmware development for Microsoft's iconic Surface devices in Redmond. Utilize your 6+ years of experience in C/C++ and embedded systems, with a strong focus on Rust and security protocols. Drive the full software lifecycle, collaborating with hardware teams to deliver stable, secure, and i...
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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 Ads Data Platform Team as a Principal Software Engineer. Design and build high-scale, low-latency systems powering ads across Bing, MSN, and Edge. This role requires 6+ years of coding experience in C++/C#/Java/Python and a background in distributed systems. Lead feature developm...
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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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Principal Software Engineer
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Lead the evolution of Microsoft's global ad-serving infrastructure as a Principal Software Engineer. Design and optimize high-performance, large-scale GPU/CPU inference and ranking systems that process millions of requests per second. This senior technical role in Redmond focuses on advancing the...
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United States , Redmond
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Salary
139900.00 - 274800.00 USD / Year
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Microsoft Corporation
Expiration Date
Until further notice

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.