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Principal Engineer Jobs

1585 Job Offers

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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Salary
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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Location
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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Salary
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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Salary
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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Location
India , Pune
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Salary
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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Salary
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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Location
China , Beijing
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Salary
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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Salary
139900.00 - 274800.00 USD / Year
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Microsoft Corporation
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Principal Software Engineer - Surface Team
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Lead the architecture for innovative Surface app experiences at Microsoft's Redmond HQ. As a Principal Software Engineer, you'll define technical vision, mentor teams, and build high-quality software for millions. Requires 6+ years in C++/C# and a passion for hardware-software integration. Enjoy ...
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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 future of security as a Principal Software Engineer at Microsoft in Redmond. Design and architect complex cloud solutions for the Microsoft Security platform, using your expertise in C#, Java, or Python. This role requires a Bachelor's degree, 6+ years of coding experience, and a passion...
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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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Join Microsoft's Business & Industry Copilots group as a Principal Software Engineer in Redmond. Drive AI innovation within the Copilot Studio team, designing and delivering cutting-edge SaaS applications. Leverage your 6+ years of coding expertise in C#, Java, Python, or similar to build and opt...
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Location
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- Search Growth & Monetization
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Lead the innovation of Bing's search growth and monetization in Beijing. As a Principal Software Engineer, you'll architect full-stack solutions, from AI-driven features to data pipelines, using JavaScript/TypeScript and modern AI. Drive impactful projects, analyze experiments, and shape the futu...
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China , Beijing
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Not provided
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Microsoft Corporation
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Principal Embedded Software Engineer
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Lead the embedded software strategy for cutting-edge 3D printers as a Principal Engineer in Somerville. You will architect scalable systems in C/C++, solve complex hardware-software challenges, and define the technical roadmap. This senior role requires deep expertise in shipping complex hardware...
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United States , Somerville
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Salary
175000.00 - 200000.00 USD / Year
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Formlabs GmbH
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Principal Machine Learning Engineer
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Lead the architecture of a core AI/ML platform at Amgen in Hyderabad. You will design and build a scalable, self-service ecosystem for ML, LLM, and Generative AI models, enabling rapid research-to-production cycles. This senior role requires deep expertise in production ML systems, MLOps (MLflow)...
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India , Hyderabad
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Amgen
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Principal Software Engineer
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Lead AI-native security innovation at Microsoft in Redmond. As a Principal Software Engineer, you'll provide technical leadership, improve AI tools across the SDLC, and establish best practices. Requires a Bachelor's degree plus 6+ years of coding experience in C, C++, C#, Java, JavaScript, or Py...
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Location
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 Engineer I – Senior Customer Identity Access Management Developer
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Lead the technical implementation of the Strivacity CIAM platform as a Principal Engineer in Irving/Dallas, TX. This senior contractor role requires 8+ years' CIAM experience, expertise in OAuth2/OIDC/SAML, and a background in regulated industries. You will enhance customer trust, ensure complian...
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United States , Irving/Dallas, TX
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Not provided
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Software Resources
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Principal Engineer - AI Platform Development (Azure PostgreSQL)
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Lead AI platform development for Azure PostgreSQL in Barcelona. Design and build next-gen AI database features like vector search and semantic indexing. Utilize your expertise in cloud-native architecture and languages like Python or C#. Shape the future of intelligent applications on a global Az...
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Spain , Barcelona
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Not provided
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Microsoft Corporation
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Senior Principal Electrical Engineer
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Lead complex electrical engineering projects in the oil and gas sector from Chennai. This senior principal role requires 15-20 years of detailed design experience with major contractors. You will develop innovative, cost-effective solutions, direct engineering teams, and influence key business ou...
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India , Chennai
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Not provided
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McDermott
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Principal Mechanical Engineer - HVAC
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Lead complex HVAC and mechanical design projects as a Principal Engineer in Dubai. This senior role requires 18-25 years of oil & gas experience, PE registration, and expert problem-solving skills. You will guide teams through FEED and detailed design, ensuring quality and efficiency.
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United Arab Emirates , Dubai
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Not provided
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McDermott
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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.