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Principal Engineer Jobs

1673 Job Offers

Principal Ai Engineer (Prisma Browser - Agents Platform)
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Principal AI Engineer sought to build the agentic development lifecycle for Prisma Browser in Tel Aviv. You will design production-grade autonomous agents, manage LLM APIs, and lead Context Engineering initiatives. Requires 8+ years in software architecture, a product builder mindset, and deep ag...
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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 Engineer (Machine Learning)
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Seeking a Principal ML Engineer to drive AI-powered User and Entity Behavior Analytics in Santa Clara. You will architect and deploy cutting-edge ML models and pipelines using Python, TensorFlow, or PyTorch. Requires 10+ years in software development and 4+ years in backend engineering with ML ex...
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United States , Santa Clara
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Salary
185200.00 - 299475.00 USD / Year
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Palo Alto Networks
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Senior / Principal Civil Water Engineer
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Senior / Principal Civil Water Engineer sought to lead multi-disciplinary teams on landmark UK water infrastructure projects in Bristol. You will drive technical design for hydraulics, wastewater, and clean water systems, mentoring junior engineers. Enjoy flexible hybrid working, a competitive sa...
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United Kingdom , Bristol
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Not provided
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Morson Talent
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Principal Engineer - CPTO, BPL
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Principal Engineer role in CPTO, BPL, shaping scalable distributed services for critical business operations. Requires deep JVM expertise (Kotlin, Java), cloud-native mindset (AWS, Azure, GCP), and fintech/payments experience. Based in London or Northampton, UK, with benefits including private me...
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United Kingdom , London; Northampton
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Not provided
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Barclays
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Principal Safety Engineer
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Principal Safety Engineer sought for Bolt’s Autonomous Driving team in London. You will lead safety cases for Level 4 systems, mastering ISO 26262, SOTIF, and cybersecurity standards. Requires 10+ years in safety-critical engineering and deep knowledge of autonomous architecture. Enjoy a hybrid r...
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United Kingdom , London
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Not provided
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Bolt
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Principal Software Engineer (Cloud Network and AI Security)
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Principal Software Engineer sought for Cloud Network & AI Security in Santa Clara. Leverage expertise in C, Python, Go, and low-level Linux systems to design virtualization features across Azure, AWS, and GCP. Requires deep knowledge of network security (stateful firewall, DPDK, XDP) and cloud ar...
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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 (C++-low level-Prisma Browser)
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Join a world-class team in Santa Clara, CA as a Sr Principal Software Engineer (Prisma Browser). We seek a C++ virtuoso with 8+ years of endpoint development expertise to architect our Chromium-based enterprise browser. Lead critical features, master performance optimizations, and mentor engineer...
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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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Senior/ Principal/ Sr Principal Engineer (Cortex Cloud)
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Senior/Principal Engineer (Cortex Cloud) sought to architect the core server-side communication backbone for high-scale bidirectional data flows. This leadership role demands deep expertise in distributed systems, Go/Python, and cloud platforms (GCP/AWS/Azure) with Kubernetes. You will drive the ...
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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 / Sr Staff Software Engineer (ITDR)
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Principal Software Engineer (ITDR) sought to design and build cutting-edge, high-scale systems using Angular, React, and Python on AWS. Requires 7+ years of SW development, deep expertise in modern frameworks, and strong TypeScript/RxJS skills. Lead infrastructure design, implement sophisticated ...
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Israel , Petah Tikva
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Palo Alto Networks
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Principal Engineer
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Baxter seeks a Principal Engineer to lead complex automation initiatives in a GMP-regulated pharmaceutical environment. You will define the technical vision, integrate robotics and data analytics, and manage full project lifecycles for capital projects up to $10M. This role requires a Bachelor’s ...
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United States , Marion
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143333.00 - 168000.00 USD / Year
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Baxter
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Principal Engineer - Mortgage Servicing
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Principal Engineer sought for Mortgage Servicing in Pune, India. Drive technical excellence by designing scalable software solutions and mentoring engineering teams. Collaborate cross-functionally to align technical strategy with business goals. Enjoy competitive benefits including private medica...
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India , Pune
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Barclays
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Principal Engineer - Mortgage Open Sustain, Insurance & Packs
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Principal Engineer role in Pune, India, driving technical excellence at Barclays. You will design scalable software solutions, mentor engineering teams, and align technical strategy with business goals. Leverage expertise in FinTech, machine learning, and blockchain to shape the future of financi...
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India , Pune
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Barclays
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Principal Model-Based Systems Engineer - AI Advancement
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Lead Principal Model-Based Systems Engineer sought to drive AI advancement in MBSE. This role defines system architectures for cloud-based AI applications, leveraging Cameo Systems Modeler. Requires BS+8 years or equivalent, expertise in requirements management, and analysis of alternatives. Join...
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United States , Home
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105199.68 - 206990.49 USD / Year
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Arcfield
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Principal Engineer- Process & Product
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Principal Engineer – Process & Product role in Aibonito, US. Lead manufacturing and new product introduction projects, driving quality and productivity. Requires a Bachelor’s in engineering, 5-8 years of experience, and bilingual Spanish/English skills. Benefits include medical, paid parental lea...
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United States , Aibonito
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Baxter
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Principal Machine Learning Engineer - AV Labs
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Join Uber’s AV Labs as a Principal ML Engineer to lead Physical AI innovation in San Francisco or Sunnyvale. You will architect state-of-the-art autonomy algorithms and foundation models, solving the hardest long-tail data challenges in autonomous driving. Requires 10+ years in ML/Robotics, exper...
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United States , San Francisco; Sunnyvale
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302000.00 - 336000.00 USD / Year
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Uber
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Sr Principal Engineer Software- Backend (Prisma Browser)
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Senior Principal Backend Engineer sought for Santa Clara HQ to lead development of the Prisma Browser enterprise security solution. You will own end-to-end feature delivery, leveraging 5+ years in Go/C#/Java/C++ and cloud-native microservices on AWS/GCP/Azure. Drive innovation in multi-threaded p...
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United States , Santa Clara
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Palo Alto Networks
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Principal Service Reliability Engineer
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Lead reliability strategy for mission-critical, distributed systems as a Principal SRE in Redmond. Define SLOs/SLIs/error budgets, drive automation, and eliminate toil across enterprise-scale platforms. Requires 8+ years in software/network engineering or systems admin, with proven experience ope...
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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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Principal Software Engineer needed onsite in Annapolis Junction, MD. You will lead full-stack development using JavaScript, React, Node.js, and Rust, driving mission-critical solutions for the Intelligence Community. Requires 12+ years of SWE experience, a TS/SCI with Full Scope Polygraph, and ex...
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United States , Annapolis Junction
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215000.00 - 250000.00 USD / Year
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Riverstone Enterprise Solutions
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Principal Software Engineer
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Principal Software Engineer role in Zürich, Switzerland, blending deep technical expertise with customer collaboration. You’ll code in C++, C#, Java, or Python, containerize workloads, and leverage AI to solve high-scale challenges. Join Microsoft’s ISE team to co-engineer solutions with senior s...
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Switzerland , Zürich
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Microsoft Corporation
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Principal Software Engineer
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Principal Software Engineer role in Amsterdam with Microsoft’s ISE team. You will co-engineer high-scale solutions with customers, leveraging AI and containerization. Requires 8+ years coding in C#, Python, or Java, plus executive-level customer advisory experience. Enjoy 25% travel, flexible wor...
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Netherlands , Amsterdam
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Not provided
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Microsoft Corporation
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About the Principal Engineer role

Explore the pinnacle of technical leadership with Principal Engineer jobs. A Principal Engineer is a master-level technical expert and strategic leader within an engineering organization. This is not merely a senior role; it represents the apex of an individual contributor technical track, where influence, architectural vision, and deep expertise converge to shape the technological future of a company. Professionals in these roles are the go-to authorities for the most complex, high-impact challenges, setting technical standards and driving innovation across multiple teams or the entire organization.

The common responsibilities of a Principal Engineer are vast and critical to long-term success. Typically, they involve defining and driving the long-term technical strategy and architectural vision for major platforms or product suites. They are responsible for researching, prototyping, and selecting technologies that will scale to meet future business needs. A core part of their duties includes leading the design and implementation of complex, cross-functional systems, ensuring they are resilient, secure, and efficient. They serve as the ultimate escalation point for critical production issues, conducting deep-dive analysis and root cause investigations to resolve systemic problems. Furthermore, Principal Engineers have a significant mentorship and governance function, actively coaching senior and staff engineers, establishing best practices, and conducting rigorous code and design reviews to maintain exceptional quality across all engineering outputs. They are also key collaborators, working closely with engineering managers, product leaders, and enterprise architects to align technical execution with business objectives.

The typical skills and requirements for these high-level positions are extensive. A bachelor's or master's degree in computer science, engineering, or a related field is common, though equivalent demonstrable experience is often acceptable. Most roles require a minimum of 10+ years of progressive, hands-on software development or infrastructure engineering experience, with a significant portion spent in lead or architecture-focused positions. Essential technical skills include mastery of relevant programming languages and frameworks, profound knowledge of system design patterns and distributed architectures, and expertise in cloud platforms like AWS, Azure, or GCP. They must possess exceptional analytical and problem-solving abilities to deconstruct ambiguous, complex problems. Beyond technical prowess, superior soft skills are non-negotiable; this includes outstanding communication to articulate technical vision to both technical and non-technical stakeholders, proven leadership and influence without formal authority, and strategic business acumen. For those seeking to define technological frontiers and mentor the next generation of experts, Principal Engineer jobs offer a challenging and highly rewarding career path at the forefront of innovation.