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Principal Software Engineer Jobs (On-site work)

265 Job Offers

Sr Principal Software Engineer (Quantum Security)
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Seeking a Sr Principal Software Engineer (Quantum Security) in Santa Clara, CA. You will lead the development of next-gen security solutions, focusing on Post-Quantum Cryptography (PQC) and SSL protocols. Requires 10+ years building large enterprise apps, deep cryptographic knowledge, and cloud-n...
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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- Mobile
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Principal Software Engineer (Mobile) sought for Microsoft’s Office Android Shared Team in Hyderabad. You will architect core components using Java, Kotlin, and C++, driving AI-enabled UX innovation for Word, Excel, and PowerPoint. Requires 9+ years of experience, deep Android architecture knowled...
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India , Hyderabad
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Not provided
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Microsoft Corporation
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Principal AI Software Engineer
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Principal AI Software Engineer sought by AMD to lead OneROCm software stack innovation across Instinct, Radeon, and Ryzen platforms. This hands-on role requires deep expertise in GPU architectures, AI/ML full-stack development, and hardware/software co-design. Drive next-gen products in San Jose,...
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United States , San Jose
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Not provided
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AMD
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Senior Principal Software Engineer — Layer 7 Security
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Senior Principal Software Engineer sought to lead Layer 7 security innovation in Santa Clara. This strategic role demands expert-level C/Go skills, deep Unix/Linux experience, and a proven track record designing large-scale distributed systems. You will define architecture for next-gen firewall p...
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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/ Senior Software Engineer - Identity Security
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Principal/Senior Software Engineer – Identity Security at Palo Alto Networks in Tel Aviv. Drive innovation securing identities across hybrid and SaaS landscapes using cloud-native tech (Kubernetes, Docker, AWS/GCP/Azure). Requires 5+ years backend experience, AI-assisted development skills, and a...
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Israel , Tel Aviv
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Not provided
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Palo Alto Networks Italia
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Principal / Senior Software Engineer - Identity Security
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Join Palo Alto Networks as a Principal/Senior Software Engineer in Tel Aviv, shaping the future of Identity Security. You'll architect scalable, cloud-native solutions using Kubernetes, Docker, and microservices to secure hybrid and SaaS landscapes. Leverage AI tools like Gemini and Claude to dri...
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Israel , Tel Aviv
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Not provided
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Palo Alto Networks
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Principal Software Engineer
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Principal Software Engineer sought by RX Global in Richmond, UK. Drive domain architecture, mentor senior engineers, and own technical roadmaps for high-impact systems. Requires deep expertise in distributed systems, cloud-native AWS solutions, and legacy modernisation. Lead through influence, ba...
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United Kingdom , Richmond
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Not provided
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RX Global
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Principal Software Engineer
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Lead the design of cutting-edge networking solutions for Azure data centers as a Principal Software Engineer in Bangalore. You will develop high-performance packet forwarding and control plane software on DPUs, leveraging 10+ years of C programming and L3/L4 data plane expertise. This role offers...
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India , Bangalore
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Not provided
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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. Build cutting-edge batch and streaming systems at a massive scale, processing billions of documents daily to power Bing Search and AI training. Leverage your expertise in distributed systems and languages like 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 Engineer
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Join Palo Alto Networks' Cortex Xpanse team as a Principal Software Engineer in Santa Clara. Design and build scalable backend services, APIs, and data pipelines for the Attack Surface Management platform. Leverage 7+ years of experience with Python/Java/Golang, cloud platforms, and CI/CD to proa...
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United States , Santa Clara
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147000.00 - 237500.00 USD / Year
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Palo Alto Networks
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Principal Engineer Software (Wildfire)
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Join Palo Alto Networks as a Principal Software Engineer for the cutting-edge WildFire malware detection platform. Design, build, and scale cloud-native security infrastructure using Python, C, or Golang. This role in Santa Clara offers RSUs, a bonus, and the chance to protect customers from evol...
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United States , Santa Clara
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147000.00 - 237500.00 USD / Year
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Palo Alto Networks
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Product Owner – Sr Principal Software Systems Engineer for Digital Applications
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Seeking a Senior Principal Product Owner to lead digital application development for Infusion Pump Platforms in Raleigh. You will translate customer and clinical insights into product features, managing backlogs in an Agile environment. This role requires expertise in regulated medical devices, c...
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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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Lead the architecture of planning systems for Microsoft's global cloud infrastructure. This principal engineering role in Redmond focuses on maximizing availability and minimizing waste using AI and software innovation. Requires a BS in CS (or equivalent) with 6+ years of coding experience in 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 Engineer
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Lead the design of high-performance, cloud-native applications as a Principal Software Engineer. Leverage your 12+ years of expertise in Java, Microservices, and AWS/Azure to build scalable solutions for Fidelity. Champion engineering excellence in CI/CD, testing, and architecture while mentoring...
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India , Bangalore; Chennai
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Fidelity Investments
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Principal Software Engineer
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Lead AI-driven innovation as a Principal Software Engineer for Microsoft's CRM platform in Bangalore. Architect scalable, distributed systems integrating AI, ML, and Copilot experiences to empower global sales and marketing teams. Requires 6+ years of technical leadership and cloud expertise in b...
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India , Bangalore
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Microsoft Corporation
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Principal Engineer, Software Development Engineering
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Lead firmware development for next-gen UFS validation hosts in Bengaluru. This principal role requires 10+ years in embedded C/C++, Python, and storage protocols (UFS, PCIe). You will design, debug, and integrate systems, driving complex programs with high visibility and impact.
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India , Bengaluru
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Sandisk
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Sr Principal Software Engineer (Wildfire - Backend)
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Lead the development of a cutting-edge, cloud-based security infrastructure at massive scale. As a Principal Software Engineer, you will architect scalable microservices and data pipelines in Python/Golang. This role in Santa Clara demands strong technical leadership and expertise in distributed ...
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United States , Santa Clara
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Salary
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 vision for Bing's core Web Data Platform as a Principal Software Engineer. Architect and build large-scale, high-performance systems powering AI solutions for billions of users. This senior role in Redmond requires 8+ years of experience in system architecture, microservices, and a deep ...
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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 Manager
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Lead the Web Data Platform team at Microsoft in Redmond, building large-scale, AI-powered systems for Bing Search and AI training. This principal manager role requires 8+ years of engineering and 6+ in people management, with deep expertise in high-scale architecture and AI models. Provide hands-...
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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 - SONIC & SAI
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Lead the development of high-performance SAI/SONiC SDKs and networking platforms in Saratoga. This role requires deep expertise in SONiC, SAI, C/C++, and low-level system programming. You will design hardware abstraction layers and collaborate with embedded teams. We offer full medical benefits, ...
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United States , Saratoga
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Salary
210000.00 - 290000.00 USD / Year
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Piper Companies
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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.