Software Engineer, Principal United States Jobs

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...

Lead the development of next-generation SASE and SD-WAN security solutions. This principal role in San Jose (hybrid) requires deep expertise in C/C++, networking (IPSec/VPN), and data path development. Architect and optimize high-performance platforms for on-prem and cloud environments, leveragin...

Join Baxter as a Senior Principal Software Quality Engineer in Raleigh. Ensure high-quality, safe software and medical device development within a regulated environment. Leverage 8+ years of experience in medical devices and knowledge of standards like IEC 62304. Enjoy comprehensive benefits, pro...

Lead the design of scalable software systems as a Principal Software Engineer in San Francisco. This role requires 12+ years of experience, expertise in architecture, cloud tech, and mentoring teams. We offer comprehensive benefits including health insurance, 401K matching, stock options, and gen...

Lead the next generation of the T-Mobile Android app as a Principal Engineer. Utilize your 7+ years of expertise in Kotlin, Jetpack Compose, and scalable architecture (VIPER/MVVM) to build for millions. Enjoy a top-tier Total Rewards package with stock grants and comprehensive benefits in key US ...

Lead the technical vision for AI-driven search and data ecosystems at Atlassian. This senior role requires 12+ years in cloud-native SaaS and AWS, focusing on high-scale, distributed systems. You'll architect core infrastructure, mentor engineers, and shape the future of AI. Based in key US tech ...

Lead complex architecture and mentor teams as a Principal Software Engineer. Tackle our largest technical challenges and deliver solutions used across products. Enjoy flexible work from Mountain View or San Francisco with health coverage and wellness benefits.

Lead complex, large-scale technical initiatives as a Senior Principal Software Engineer in San Francisco. This role requires 10+ years of senior engineering experience and 5+ years as a Technical Lead, with expertise in FedRAMP/DoD compliance. You will architect solutions, mentor principals, and ...

Lead our technical vision as a Principal Fullstack Engineer in San Francisco. Leverage your 10+ years with Java, Kotlin, and AWS microservices to build scalable SaaS solutions. You will guide product strategy, mentor engineers, and optimize systems. Enjoy health coverage, paid volunteer days, and...

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...

Lead digital transformation in healthcare as a Principal Software Engineer at CVS Health. Design and develop key applications using Java/Python, CI/CD, and Agile/SAFe methodologies. This Woonsocket-based role offers robust benefits, including comprehensive medical plans, 401(k), and development c...

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...

Seeking a Principal Software Engineer for an onsite role in Annapolis Junction. Prototype and develop novel solutions using TypeScript, React, Java, and Spring Boot in a dynamic, mission-driven environment. This role requires a polygraph and offers the freedom to choose the right tools for critic...

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 the design of our global logistics platform as a Principal Software Engineer in Hoboken, NJ. You will architect scalable microservices using Scala, Kubernetes, and AWS to handle millions of transactions. This role requires 7+ years of experience building large-scale distributed systems. Driv...

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...