4 principal software systems engineer jobs found

Yahoo serves as a trusted guide for hundreds of millions of people globally, helping them achieve their goals online through our portfolio of iconic products. For advertisers, Yahoo Advertising offers omnichannel solutions and powerful data to engage with our brands and deliver results. A Little About Us Our team is at the forefront of redefining the shopping research experience across Yahoo's global ecosystem. As a product-minded engineering group, we specialize in integrating deep, AI-driven product insights and real-time data directly into the user flow to create a more intuitive discovery journey. We operate with a collaborative, 'scrappy' mindset - sitting at the intersection of design and code - to build high-impact, frontend-heavy solutions that power the next generation of e-commerce across all of Yahoo's diverse verticals. About the Role As a Principal Software Engineer, you are a technical heavyweight within the Commerce organization. You are the go-to...

Yahoo serves as a trusted guide for hundreds of millions of people globally, helping them achieve their goals online through our portfolio of iconic products. For advertisers, Yahoo Advertising offers omnichannel solutions and powerful data to engage with our brands and deliver results. A Little About Us Yahoo Search is one of the most highly scaled applications on the planet. We hire world-class engineers to support our ambitious product and platform goals. Our engineers work in a highly collaborative environment with a strong emphasis on technical excellence and innovation. We are currently reimagining the future of Search, reinventing how users find information and accomplish their goals through AI-augmented experiences. This role offers a unique opportunity to lead the architectural evolution of our search infrastructure during a period of significant digital transformation. About the Role As a Principal Backend Software Engineer specialized in Node.js and AWS ,...

It takes powerful technology to connect our brands and partners with an audience of hundreds of millions of people. Whether you're looking to write mobile app code, engineer the servers behind our massive ad tech stacks, or develop algorithms to help us process trillions of data points a day, what you do here will have a huge impact on our business-and the world. A Little About Us The Enterprise IT team is at the forefront of Yahoo's digital transformation, building the next generation of AI-powered productivity tools. The IT - Workforce Experiences and Communication team is seeking a Sr. Principal AI Architect (IC6) to define the vision for how Yahoo employees work. Our mission is to deliver enterprise-grade software solutions that integrate agentic AI capabilities to automate business processes and exponentially increase the productivity of the global Yahoo workforce. This team is responsible for staying ahead of the rapidly changing AI landscape, rapidly prototyping...

Yahoo Mail is the ultimate consumer inbox with hundreds of millions of users. It's the best way to access your email and stay organized from a computer, phone or tablet. With its beautiful design and lightning fast speed, Yahoo Mail makes reading, organizing, and sending emails easier than ever. A Little About Us Yahoo Mail serves over 220M users globally and operates at massive scale-billions of inbound connections and trillions of messages. Our vision is to be the best consumer inbox that helps users run the business of their lives. The Mail Intelligence AI/ML Platform powers intelligent capabilities across Yahoo Mail and the broader Yahoo ecosystem. We build systems that extract meaning from unstructured content, understand user context and intent, and deeply personalize user journeys at scale. We are evolving beyond traditional ML into agentic, assistive, and proactive intelligence -systems that don't just classify or recommend, but reason, act, orchestrate workflows,...