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Principal Software Engineer Jobs

723 Job Offers

Principal Software Engineer - CoreAI Model Inference & Serving
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Shape the future of AI inference at scale as a Principal Software Engineer in Microsoft's CoreAI team. Design and build high-performance, low-latency serving systems for leading LLMs like OpenAI and Mistral. This hands-on technical leadership role in Redmond drives innovation on Azure's foundatio...
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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 AI-driven transformation of developer tools as a Principal Software Engineer in Redmond. Architect scalable systems and mentor teams to build next-gen M365 services. Requires 6+ years of experience with C++, C#, Java, or Python and a passion for AI innovation.
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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 - ADEM Agent (Client/Endpoint Focus)
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Lead the architectural vision for the ADEM Agent as a Principal Software Engineer. Design and build high-performance, resource-efficient endpoint software for Windows, macOS, and Linux using Rust/Go. Tackle complex challenges in scale and security for a global client base from Santa Clara.
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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 Italia
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Principal Software Engineer
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Lead the development of Microsoft Ads' high-performance, unified inference platform in Beijing. As a Principal Software Engineer, you will design and optimize large-scale distributed systems for billions of daily requests. Your expertise in C++, GPU acceleration, and low-latency serving will be c...
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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
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Join Microsoft AI's health team in London as a Principal Software Engineer. You will translate cutting-edge AI research into transformative products, building a world-class health companion. We seek an expert in scalable systems (C#, Python, etc.) with a passion for robust, user-centric engineeri...
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United Kingdom , London
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Not provided
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Microsoft Corporation
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Principal Software Engineer
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Join a rapidly growing AI startup as a Principal Software Engineer. Design and deliver production-grade systems where intelligent agents operate at scale. We seek 10+ years of backend expertise (Python/Go) and hands-on AI agent experience. Enjoy a fully remote role in the UK with competitive pay ...
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United Kingdom
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Salary
150000.00 - 200000.00 GBP / Year
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Oho Group Ltd
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Principal Software Engineer
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Lead application systems analysis and programming as a Principal Software Engineer (VP) in Pune. This senior role requires 10-16 years of expertise in Java, Python, RESTful APIs, Kafka, and cloud platforms (AWS/GCP). You will establish new systems, demonstrating leadership and project management ...
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India , Pune
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Not provided
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Citi
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Software Engineer, Principal
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Seeking a Principal Software Engineer in Bedford to support critical Command, Control, and Battle Management (C3BM) programs. This role requires a Top Secret/SCI clearance, 20+ years of experience, and expertise in the full DoD software development lifecycle. Join our team to develop resilient sy...
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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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Lead data integration innovation on Microsoft's Azure platform in Hyderabad. This principal engineer role requires 12+ years' experience with C/C++/C#/Python and expertise in building reliable, large-scale data systems. You will architect solutions for products like Microsoft Fabric and Azure Dat...
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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
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Lead the architecture for Microsoft's next-generation Agent Cloud Platform in Hyderabad. This principal role requires 12+ years of experience in C++/C#/Java and designing large-scale distributed systems. You will drive strategy, service maturity, and enterprise-scale solutions for Dynamics 365 an...
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India , Hyderabad
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Not provided
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Microsoft Corporation
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Senior Software Engineer and Principal Software Engineer - Power Point AI Team
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Join Microsoft's PowerPoint AI team in Redmond to shape the future of AI-powered visual storytelling. Lead the design of scalable backend services and complex AI features for Copilot and next-gen agents. This role requires 6+ years of backend engineering experience with C++, C#, or Python, focusi...
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United States , Redmond
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Salary
119800.00 - 234700.00 USD / Year
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Microsoft Corporation
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Principal Software Engineer Manager
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Lead the Microsoft Store app team in Redmond, driving AI innovation and client infrastructure. We seek a Principal Software Engineering Manager with expertise in C#, C++, and native Windows development. You will oversee full-stack solutions, mentor engineers, and shape a seamless global user expe...
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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 - Performance
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Lead AI inference performance for OpenAI and leading LLMs at Microsoft. Optimize models on NVIDIA, AMD, and custom silicon to serve trillions of daily inferences. Drive Azure's AI capex goals with cutting-edge software tools in a collaborative team. Requires 6+ years in C++/Python and a backgroun...
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United States , Mountain View
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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 AI-driven innovation in data protection as a Principal Software Engineer at Microsoft. Design scalable systems using C#, Java, or Python in Redmond. Mentor teams and shape technical strategy for M365's cutting-edge security solutions. A background check is required.
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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
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Lead software development and digital transformation as a Principal Engineer at PepsiCo. This Plano/Purchase-based role requires 8+ years of experience, expertise in Java, SpringBoot, and cloud-native distributed systems. You will architect high-scale solutions, guide engineering teams, and shape...
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United States , Plano; Purchase
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127500.00 - 221800.00 USD / Year
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Pepsico
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Sr Principal Engineer, Software
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Lead the architecture of Baxter's innovative cloud-based medical IoT platform in Bengaluru. You'll design scalable software for connected devices and data analytics, ensuring compliance with IEC 62304. Leverage your expertise in .NET Core and Agile to improve clinical outcomes. Enjoy a supportive...
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India , Bengaluru
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Not provided
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Baxter
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Principal Software Engineer - Frontend
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Lead frontend development for Microsoft's Azure Data platform, building next-generation big data and AI analytics experiences. Utilize your expertise in JavaScript, TypeScript, and modern frameworks like React or Angular. This role offers the opportunity to shape world-class cloud services from m...
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Spain , Multiple Locations
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Not provided
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Microsoft Corporation
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Principal Software Engineer Manager
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Lead engineering teams for mission-critical Azure services within Microsoft's specialized, regulated cloud environments. This Principal Manager role requires a U.S. Top Secret/SCI clearance and combines deep technical leadership with end-to-end service accountability. Guide your team in developin...
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United States , Reston
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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 development of a cutting-edge Data Security Platform as a Principal Software Engineer in Santa Clara. This role requires 10+ years of UI expertise with React, TypeScript, and cloud-native tech (AWS/GCP, Kubernetes). You will architect scalable solutions, ensure production stability, and ...
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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 Italia
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Principal Software Engineer
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Lead the architecture and delivery of scalable platform services for Microsoft's Business & Industry Copilots in Redmond. Provide technical leadership on Copilot Studio, collaborating across Azure, M365, and Power Platform. Mentor engineers and drive engineering excellence with 8+ years of coding...
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Location
United States , Redmond
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Salary
163000.00 - 296400.00 USD / Year
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Microsoft Corporation
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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.