Software Engineer, Principal United States Jobs (Hybrid work)

Lead architectural innovation for AI and strategic initiatives at Microsoft. This hands-on Principal Engineer role strengthens platform resiliency and drives customer-focused solutions. Requires 6+ years of coding experience in C++, C#, Python, or Java. This position is based in the United States.

Lead the development of cutting-edge, user-facing Generative AI features at Microsoft in Redmond. As a Principal Software Engineer, you'll own projects from concept to delivery, working with top brands to drive AI transformation. Requires 6+ years of experience, Python expertise, and a strong bac...

Lead the development of a groundbreaking, planet-scale multi-modal database for AI agents at Redmond. As a Principal Software Engineer, you'll architect reliable services using C++/C#/Java and Kubernetes (AKS/EKS/GKE). Drive operational excellence, ensure SLA compliance, and mentor a team in a fa...

Lead the transformation of Microsoft Cloud customers into fans as a Principal Software Engineer on the Azure CXP team. You will define SLOs, enhance system reliability, and leverage AI to automate operations. This role in Charlotte requires 6+ years of coding experience and expertise in cloud arc...

Join Microsoft's Security Base team as a Principal Software Engineer. Develop the next-generation security fabric using C/C++/Rust in a systems programming role. Provide strategic leadership and hands-on coding to advance Microsoft's core protection stacks. This remote US position offers a chance...

Lead the evolution of Microsoft's core cloud services as a Principal Software Engineer for OneDrive & SharePoint. Design and deliver large-scale, distributed architectures that impact millions of users. This Redmond-based role requires 8+ years of experience in cloud-scale services, REST APIs, an...

Lead the evolution of Microsoft Teams as a Principal Software Engineer. Design and maintain high-scale backend services using Azure and modern tech stacks like .NET Core. Drive AI innovation by integrating LLMs and generative AI to power Teams Copilot. Join a premier team in Mountain View, shapin...

Join Juniper's innovative Wired Assurance team in San Jose. Develop cloud-native SaaS solutions using Python, Go, or Java within a microservices architecture. Tackle complex distributed systems challenges to bring AIOps and automation to enterprise networks. Enjoy a culture focused on health, pro...

Lead the design of cloud-scale distributed systems for HPE's premier Mist networking platform. Utilize your expertise in Python/Go, event-driven architectures (Kafka), and big-data technologies (Spark) to build highly scalable, fault-tolerant software. This senior role in San Jose offers a compre...

Join Hewlett Packard Enterprise as a Principal Software Engineer in San Jose. Design and develop scalable, cloud-based network software for the Mist platform using Python, Go, or Java. Leverage your expertise in distributed systems, Kafka, and Apache Spark to build innovative solutions. Enjoy a c...

Lead the architecture of our next-gen AI claims platform as a Principal Software Engineer in New York. You will design scalable systems handling millions of documents daily, leveraging LLMs and unstructured data. This role requires 10-15+ years of experience, expert Python skills, and a proven tr...

Lead our Applied AI initiatives as a Principal Software Engineer in Seattle. You will apply Generative AI and Agentic systems to solve high-impact business challenges at scale. This role requires deep expertise in LLMs, cloud services, and mentoring teams. We offer comprehensive benefits, flexibl...

Lead the design of intelligent search and recommendation systems at Highspot. This senior principal role requires 8+ years of expertise in ML, information retrieval, and large-scale platforms. Drive technical strategy, mentor engineers, and shape discovery for millions of users from our Seattle o...

Lead complex backend projects as a Principal Software Engineer at LogRocket in Boston or NYC. Design highly available distributed systems and machine learning pipelines using modern cloud technologies. Enjoy catered lunches, unlimited vacation, generous stock options, and a collaborative, craft-f...

Lead embedded software development for advanced MANET radios and research projects in Irvine. This senior role requires 8+ years of C programming and Linux kernel driver expertise. You will design MAC protocols, security features, and BSPs for ARM/RISC-V systems, ensuring compliance with NIST FIP...

Shape the future of enterprise AI as a Principal Software Engineer at Snorkel. Leverage your 12+ years of experience building cloud-native systems and deep AI/ML expertise to democratize AI through data. You will architect our core platform, mentor engineers, and tackle our most ambitious technic...

Join Microsoft's Frontier AI team in Redmond to transform healthcare with next-generation AI models. As a Principal Software Engineer, you'll design and ship scalable cloud services using C#/.NET on Azure. This role requires 6+ years of experience and offers the chance to impact millions by reduc...

Lead the development of the flagship M365 Copilot App, a high-growth, multi-platform product at the forefront of AI-powered productivity. You will manage a skilled engineering team, driving architectural decisions for Windows, Mac, and Web applications. This role in Mountain View requires 6+ year...

Join Microsoft's Azure Data team in Redmond as a Principal Software Engineer. Design and build core distributed database capabilities for Cosmos DB, integrating with Microsoft Fabric. Leverage 6+ years of coding experience in C/C++/C#/Java/Python and deep expertise in distributed systems. Shape t...

Join our AI/ML team as a Principal Software Engineer in New York. You will design and deploy scalable ML systems and Agentic AI solutions, leveraging Python and cloud platforms. This role involves direct client collaboration, full-stack development, and driving innovation from discovery to produc...