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Principal Software Engineer United States Jobs

441 Job Offers

Principal Software Engineer
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Principal Software Engineer (NGFW Platform) role at Palo Alto Networks in Santa Clara, CA. You will design platform diags and software for Next-Generation Firewalls, leveraging 10+ years of experience in Linux Kernel, DPDK, and hardware bring-up. Strong C and Python skills required to innovate fe...
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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 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 in Edison, NJ, driving technical direction for a connected equipment platform. Requires 10+ years’ experience, C#, .NET, ASP.NET, JavaScript, React.js, and microservices expertise. Lead impactful projects, mentor engineers, and modernize systems in a contract-to-p...
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United States , Edison
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Not provided
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Robert Half
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Principal Software Engineer
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QTEC Aerospace seeks a Principal Software Engineer in Huntsville, AL to design, develop, and test complex software systems using C++. Candidates need a STEM degree and 5+ years of experience, with expertise in Python, Kubernetes, Docker, and distributed systems. This role offers challenging assig...
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United States , Huntsville
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Not provided
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QTEC Aerospace
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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 at CVS Health: Drive the technical vision for cloud-native, Flutter-based applications across web and mobile. Leverage 10+ years of experience in distributed systems, 5+ years in Flutter/Angular/React, and 3+ years in public cloud (GCP/Azure). Lead high-impact initiati...
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United States
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144200.00 - 288400.00 USD / Year
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CVS Health
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Sr Principal Software Engineer - Sase Ai/Ml
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Sr Principal Software Engineer (AI/ML) sought to lead end-to-end delivery of next-gen cloud security solutions in Santa Clara. Requires 10+ years experience, expertise in Python/Java/Go, and distributed systems on Kubernetes. Drive innovation at the intersection of cloud tech and cybersecurity, s...
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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 Engineer Software (Strata Cloud Control Plane)
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Principal Engineer Software role focused on building the Strata Cloud Control Plane at Palo Alto Networks. Requires 8+ years in enterprise apps, 3+ years in technical leadership, and expert GoLang skills. Lead cross-functional teams to develop scalable, cloud-native microservices on public cloud ...
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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 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
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Principal Software Engineer role at Microsoft’s Global Skilling Product Team. Design and build Azure full-stack solutions, CI/CD infrastructure, and AI-driven test automation for platforms impacting millions of learners. Requires 6+ years in C#, Java, or Python with cloud expertise. Lead junior e...
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United States , Multiple Locations
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142800.00 - 274800.00 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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Principal Software Engineer sought to lead technical direction and execution for the NorthStar medical device platform in Burnsville, MN. This role demands 10+ years of experience, deep expertise in C# and Python, and strong leadership in regulated environments. You will drive architecture, mento...
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United States , Burnsville
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130000.00 - 175000.00 USD / Year
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Imricor Medical Systems
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Senior Principal Software Engineer - Network Security - PanOS
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Senior Principal Software Engineer sought to lead Layer 7 security architecture for next-gen firewall platforms in Santa Clara, CA. Requires 12+ years of experience, expert C and Go skills, and deep Unix/Linux expertise. Drive scalable, distributed cloud security systems and mentor senior enginee...
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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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Senior Principal Engineer Software (Prisma Access)
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Senior Principal Engineer Software (Prisma Access) sought to lead the Explicit Proxy team in Santa Clara, CA. This role combines hands-on L4-L7 proxy expertise with managerial excellence, driving innovation in cloud-delivered SASE and network security. You will guide teams building scalable, mult...
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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 - Network Security - PanOS
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Principal Software Engineer (NetSec-Panos Dev) sought to lead cloud security innovation in Santa Clara. Drive end-to-end delivery of high-scale distributed systems using Go or Java, with expertise in Kafka, SQL, and cloud technologies. Architect next-gen network security solutions, collaborating ...
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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
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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 (Architect)
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Principal Software Engineer (Architect) role in Redmond, WA, driving large-scale innovation for Microsoft Entra ID. You will architect cloud identity solutions, lead high-quality coding in C#, Java, or Python, and champion AI-first engineering. This position requires a Bachelor’s in CS with 8+ ye...
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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 (Prisma Access)
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Principal Software Engineer (Prisma Access) sought in Santa Clara, US. Leverage 8+ years of experience in Go, Python, or Java to design scalable cloud-native security platforms. Requires deep expertise in distributed systems, cloud infrastructure (AWS, GCP, Azure), and REST APIs. Join a team buil...
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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 Automation / Test Engineer
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Principal Software Automation/Test Engineer role in Santa Clara, CA. Leverage AI/ML, LLMs, and Python/Go to design autonomous QA workflows for Prisma Access Services. Requires 10+ years in test automation, cybersecurity expertise, and leadership mentoring. Benefits include restricted stock units ...
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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
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.