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Principal Engineer Jobs

1681 Job Offers

Principal Generative AI Engineer
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Lead the architecture and deployment of cutting-edge Generative AI solutions as a Principal Engineer in Mississauga. This hands-on role requires 10+ years of Python expertise and deep mastery of LLMs, RAG, and agentic frameworks. You will define technical strategy and build production systems wit...
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Canada , Mississauga
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145100.00 - 217700.00 USD / Year
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Citi
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Principal Platform Engineer
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Lead platform strategy and engineering decisions for a global UK-based unit. Utilize your expertise in AWS, Kubernetes, and microservices to modernize systems at scale. Enjoy a culture of deep technical investment, including funded certifications, while guiding teams on cutting-edge projects.
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United Kingdom
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90000.00 - 110000.00 GBP / Year
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Linux Recruit
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Principal Platform Engineer
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Join an elite engineering leadership team in London as a Principal Platform Engineer. Serve as the technical heartbeat for ambitious global projects, bridging architectural vision and execution. Leverage deep expertise in AWS, Kubernetes, and Terraform to set gold standards, solve complex problem...
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United Kingdom , London
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100000.00 - 110000.00 GBP / Year
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Linux Recruit
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Principal Engineer Software (Full-Stack)
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Join our Santa Clara team as a Principal Full-Stack Engineer. Develop our industry-leading Cloud Data Loss Prevention (DLP) product using Java, microservices, and GCP/AWS. We seek an expert with 8+ years' backend experience to build scalable, secure systems in an Agile environment. Collaborate on...
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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 (Full Stack)
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Lead the development of next-gen security solutions as a Principal Full Stack Engineer in Pune. Design and build scalable microservices and advanced UIs using ReactJS, TypeScript, and Go/Python/Java. Leverage cloud-native tech (AWS, K8s) to handle massive datasets and protect our digital way of l...
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India , Pune
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Not provided
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Palo Alto Networks
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Senior/ Principal/ Sr Principal Engineer (Cortex Cloud)
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Lead the architecture of high-scale, bidirectional communication systems at Cortex Cloud. This senior role in Tel Aviv demands deep expertise in distributed systems, cloud-native tech (GCP/AWS/Azure), and languages like Go. You will design the core infrastructure handling massive data flows to mi...
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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 GNC & Trajectory Engineer
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Join Banner Defense as a Principal GNC & Trajectory Engineer in Huntsville. Utilize your 12+ years of missile defense experience and advanced STEM degree to develop and analyze target vehicle trajectories for critical flight tests. This role requires an active Secret clearance and expertise in MA...
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United States , Huntsville
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130000.00 - 141000.00 USD / Year
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Banner Defense
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Principal Application Engineer
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Join Bentley Systems as a Principal Application Engineer in Mumbai. Leverage your 15-20 years of structural engineering expertise with Bentley solutions like STAAD and RAM. Drive pre-sales technical strategy, develop solution architectures, and influence customer roadmaps. Enjoy a competitive sal...
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India , Mumbai
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Not provided
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Bentley Systems
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Principal Physical Design Engineer
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Join Microsoft's Silicon team in Bangalore as a Principal Physical Design Engineer. Lead physical design implementation and tapeouts for complex ASICs in cutting-edge technology. Utilize your 12+ years of experience to drive block and SoC-level design, from floorplanning to signoff. This role off...
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India , Bangalore
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Microsoft Corporation
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Principal Software Engineer
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Join Microsoft's Windows team in Hyderabad as a Principal Software Engineer. Lead high-caliber teams in modern app development using C/C++ and XAML/WinUI to revolutionize the Windows experience. This role requires 10+ years of coding expertise and a passion for building software at scale. Shape t...
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India , Hyderabad
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Not provided
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Microsoft Corporation
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Principal Applied AI Engineer
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Lead the development of cutting-edge security AI solutions at Microsoft in Hyderabad. This senior role requires 9+ years' experience, with deep expertise in Python/C#, LLMs, and GenAI frameworks like LangChain. You will design and deploy production AI systems, focusing on RAG, fine-tuning, and ag...
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India , Hyderabad
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Not provided
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Microsoft Corporation
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Principal Software Engineer - Backend
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Join Microsoft's AI organization as a Principal Backend Software Engineer. Develop next-generation shopping capabilities for Copilot and Browsers using your expertise in high-throughput systems. This role in Redmond requires 8+ years of experience with C++, C#, Java, or Python. Lead design, mento...
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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, CoreAI
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Join Microsoft's CoreAI team to build the AI infrastructure powering Azure's innovation. As a Principal Software Engineer, you'll develop scalable training systems for frontier LLMs and agentic models. This role requires 6+ years of coding experience in C++, Python, or similar. Collaborate in a f...
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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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Lead the development of next-gen financial applications in Galway. This Principal Engineer role requires 8+ years' expertise in Java, Spring Boot, and Angular, with strong AWS and microservices knowledge. Drive technical excellence, mentor a high-performing team, and enjoy a competitive bonus. EU...
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Ireland , Galway
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90000.00 EUR / Year
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Nicoll Curtin
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Senior Principal Software Engineer
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Lead the modernization of critical healthcare applications as a Senior Principal Software Engineer. This hands-on technical role requires deep .NET, SQL Server, and legacy system expertise to drive architecture and unblock teams. Enjoy a remote-first culture with comprehensive benefits while shap...
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United States
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138568.00 - 221709.00 USD / Year
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One Call
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Principal AI/ML Engineer
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Lead the architectural evolution of our AI Center of Excellence in Pune. Design and own reliable, scalable systems for advanced ML, LLMs, and agentic AI. Requires 13+ years' experience, mastery of LangChain, RAG, and AWS, plus exceptional system-level reasoning.
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India , Pune
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Not provided
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Rapid7
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Software Engineer, Principal
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Seeking a Principal Software Engineer with Top Secret/SCI clearance to support the Air Force's C3BM Division and ABMS program. This role requires 20+ years of DoD experience, full lifecycle software development expertise, and IAT Level II certification. Join us in Bedford to develop resilient bat...
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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
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Join Microsoft's AI team in Beijing as a Principal Software Engineer. Design and develop the intelligent core of the MSN content ecosystem platform. Leverage your expertise in scalable systems and AI to empower creators through data analytics and automation. This role requires strong coding skill...
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China , Beijing
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Not provided
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Microsoft Corporation
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Principal Software Engineer - Storage
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Lead the design of Azure's hyperscale storage resiliency systems as a Principal Software Engineer. You will develop fault prediction, self-healing automation, and repair workflows for millions of SSD nodes. This role requires deep expertise in SSD firmware, NVMe, and large-scale reliability engin...
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United States , Aliso Viejo
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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 future of AI infrastructure at Microsoft Core AI in Redmond. Design and build high-scale distributed services for AzureML, powering next-gen LLMs like GPT-5. Requires 6+ years of coding experience and 3+ years in systems for large model training. Develop in C#/Go/Rust on Kubernetes to 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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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.