Sr Software Engineer, Full Stack

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.

Yahoo is a global media and tech company connecting hundreds of millions of people worldwide to their passions. We provide trusted products, content, and technology spanning finance, sports, shopping, gaming, news, search, and mail. For partners, we offer a full-stack platform to amplify growth and drive meaningful connections across advertising, search, and media.

Yahoo Research is at the forefront of developing intuitive, intelligent, and forward‑looking products across our brand portfolio. We harness AI and emerging technologies to shape the next generation of Yahoo, hiring world‑class engineers to support our ambitious product and platform goals. Our engineers thrive in a highly collaborative environment with a strong emphasis on technical excellence and innovation. This is a unique opportunity as we reimagine the future of Search, reinventing how users find information and accomplish their goals.

To achieve this vision, we are integrating new technology and expanding our infrastructure. This role demands strategic partnership, analytical thinking, exceptional planning and execution skills, ambitious innovation, an obsession with quality and user needs, a passion for solving complex problems, and the commitment to implement durable solutions quickly and effectively. If you enjoy being part of high‑performing teams, this role is for you!

You are passionate about software development and building highly scalable distributed solutions that enable delightful user experiences and measurable business growth. You look for ways to grow your skill set and value high quality application development on modern tech stacks in the cloud. You are interested in how best to drive tasks to completion, collaborate to achieve your goals, think through scenarios and edge cases, learn from your leadership, and understand the broader impact of your work.

You will work closely with the product and design teams to plan, experiment and release features in collaboration with other engineering partners and business stakeholders. If you are interested in joining a world‑class team of passionate people and industry veterans who care about code quality, architecture, design and user experience as much as having fun together, then we'd like to talk to you.

• Responsible for the definition, design, development and timely completion of major new features in current and future products
• Work across the full stack, building highly scalable distributed solutions that enable delightful user experiences and measurable business growth
• Perform code reviews for your peers where you will be learning from and contributing to a collaborative working model
• Collaborate with user experience designers, product managers, and other engineers to deliver new features, enhancements, platform improvements and bug fixes
• Collaborate with other engineers to write testable, reliable code, continuously deploying to production systems
• Monitor, analyze, and improve the performance and responsiveness of web applications, components, and infrastructure
• Contribute to the full development cycle: technical design, development, test, experimentation, analysis, and launch
• Participate with a team of thoughtful, fast‑moving, and motivated engineers. Contribute to standards that improve developer workflows, recommend best practices, and help mentor junior engineers on the team to grow their technical expertise

• BS in Computer Science, or equivalent degree/experience
• 5+ years of industry experience working with large‑scale distributed systems
• 7+ years of hands‑on, professional software development experience in one or more general purpose programming languages (Java, Go, Python, Ruby, C++, etc)
• Strong experience with fullstack JavaScript development with Node, Express, Next, Fastify, etc
• Strong experience with Graph
  
  QL, REST, HTTP,…