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Principal Engineer Jobs

1671 Job Offers

Principal Software Engineer
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Join Microsoft's Edge Core AI team as a Principal Software Engineer in Redmond. Lead the development of flagship Copilot experiences using React and modern C++/C#. Drive innovation at the intersection of AI and browser technology for hundreds of millions of users. This high-profile role requires ...
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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 architecture of Microsoft 365 Copilot's core fine-tuning platform in Geneva. Design secure, large-scale distributed systems for tenant-isolated AI personalization using models like GPT and Mistral. Drive the technical vision for the Heron platform, ensuring scalability and compliance acr...
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Switzerland , Geneva
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Not provided
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Microsoft Corporation
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Principal Systems Reliability Engineer, Secure Federal Operations
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Lead secure and scalable system design as a Principal SRE for Federal Operations in Herndon. Utilize 7+ years in architecture, cloud (AWS/Azure/GCP), and DevSecOps to ensure reliability and security. Drive automation with Kubernetes, CI/CD, and Zero Trust principles. Enjoy comprehensive benefits ...
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United States , Herndon
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114800.00 - 207200.00 USD / Year
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T-Mobile
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Senior Software Engineer and Principal Software Engineer
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Join our team to build a planet-scale, multi-modal database and AI-integrated infrastructure for LLMs. We seek Senior and Principal Software Engineers with 4-6+ years of experience in C++, C#, or Java, and expertise in Kubernetes, scalable services, and live site operations. This role in Redmond ...
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United States , Redmond
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119800.00 - 234700.00 USD / Year
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Microsoft Corporation
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Principal Engineer- C++ developer
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Lead innovative gaming experiences as a Principal C++ Engineer in Gurugram. Leverage 10+ years of expertise in C++11/14, OOP, and Agile/Scrum to develop high-performance software for global products. Mentor teams, solve complex challenges, and enjoy a robust benefits package in a collaborative, w...
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India , Gurugram
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Not provided
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Aristocrat Gaming
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Principal Applied AI Engineer
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Lead AI architecture and development for Microsoft Dynamics 365's Sales and Service platform. Design and deploy production-scale AI solutions using LLMs and advanced ML to transform customer experiences. This senior role in Redmond requires deep technical engineering and AI/ML expertise in enterp...
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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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Associate Principal Engineer - Manual Testing
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Join Aristocrat as an Associate Principal Engineer - Manual Testing in Noida. Utilize your 9+ years of slot game testing expertise for land-based and iGaming platforms. Ensure quality and global regulatory compliance (GLI, ANZ, APAC, Europe) while collaborating with agile, international teams. En...
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India , Noida
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Not provided
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Aristocrat Gaming
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Principal Software Engineer Manager
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Lead the Sentinel Enterprise Readiness team as a Principal Software Engineer Manager in Redmond. You will architect critical security platforms, including RBAC and Customer-Managed Keys, for hyperscale cloud services. This role requires 6+ years of coding experience and 2+ years managing a team o...
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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 Platform Engineer
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Lead the unification and evolution of our critical lab automation platform in London. You will architect reliable, secure infrastructure using Kubernetes, hybrid cloud, and GitOps to enable scientific discovery. This senior role offers a competitive package including bonus, EV scheme, and compreh...
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United Kingdom , London
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130000.00 - 170000.00 GBP / Year
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Automata
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Principal Software Engineer
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Lead the technical vision as a Principal Software Engineer at Automata, shaping scalable, software-defined lab automation in London. You'll architect our core platform using Golang, Kubernetes, and distributed systems, with 12+ years of backend expertise. Mentor senior engineers, enjoy comprehens...
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United Kingdom , London
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130000.00 - 170000.00 GBP / Year
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Automata
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Principal Software Engineer - CoreAI
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Lead the architecture for Azure AI's core infrastructure as a Principal Software Engineer in Redmond. You will design and build large-scale, distributed systems powering advanced search and knowledge services for LLMs. This role requires deep expertise in C#/C++/Java/Python and cloud-based distri...
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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 development of Azure Database for PostgreSQL as a Principal Software Engineer in Bangalore. Design and build scalable, reliable migration features for this globally distributed cloud service. Leverage 12+ years of systems programming expertise in C++/Rust/C# and deep database architectur...
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India , Bangalore
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Not provided
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Microsoft Corporation
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Principal Engineer SW
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Seeking a Principal Software Engineer in Bengaluru to lead DevOps and CI/CD innovation. You will design GitLab pipelines, manage multi-language builds (Java, Go, C#), and optimize the full development lifecycle. This role requires 10-15 years' experience, a systems mindset, and offers strong bene...
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India , Bengaluru
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Not provided
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Baxter
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Principal AI Engineer
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Lead AI innovation at Microsoft Security AI (NEXT) as a Principal AI Engineer. Drive 0→1 R&D for AI-native security products, from prototype to platform integration across Defender and Sentinel. This hands-on role in Redmond requires 8+ years of experience and expertise in Python/C++ to build the...
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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 - Identity
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Lead Microsoft's security mission as a Principal Software Engineer in Redmond. Design and build critical authentication and authorization systems using .NET, Rust, Java, and more. This role requires 6+ years of experience in secure software development and a passion for creating a safer digital w...
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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 networking solutions for Azure data centers as a Principal Software Engineer in Bangalore. This role requires 10+ years of experience, including deep expertise in Layer3-4 packet forwarding and C programming. You will innovate on DPU technology, optimize data p...
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India , Bangalore
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Not provided
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Microsoft Corporation
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Sr Principal Software Engineer (L7 Security)
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Join our Layer-7 Security team in Santa Clara as a Sr Principal Software Engineer. Innovate and design new security features for next-generation firewalls using C/C++. We seek a collaborative leader with deep networking and security protocol knowledge. Enjoy FLEXBenefits, stock units, and a bonus.
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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
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Join Microsoft Discovery in Redmond as a Principal Software Engineer. You will architect a transformative AI-driven platform to accelerate scientific R&D. Lead the build of scalable distributed systems, mentor engineers, and integrate cutting-edge AI technologies. Requires 6+ years of software de...
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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 Microsoft Azure's SONiC team as a Principal Software Engineer. You will develop core switch software and distributed systems for cloud datacenters, tackling challenges like next-gen 100G-1.6T support. This role requires 6+ years in C/C++/Python and TCP/IP networking, with open-source (SONiC,...
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United States , Multiple Locations
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Salary
139900.00 - 274800.00 USD / Year
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Microsoft Corporation
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Principal Applied AI Engineer
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Lead AI architecture and development for Microsoft Dynamics 365 Sales and Service. Design and deploy scalable, production-ready AI solutions using LLMs and advanced ML. This senior role in Redmond requires deep engineering expertise and experience delivering enterprise-scale AI systems.
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Location
United States , Redmond
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Salary
139900.00 - 274800.00 USD / Year
https://www.microsoft.com/ Logo
Microsoft Corporation
Expiration Date
Until further notice

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.