Frontend Engineer (US Commerce)

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. 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. About Us Commerce is a fast-growing business for Yahoo in the US. Our team is dedicated to building excellent user experience and products that people love to use, and providing an inspiring experience for shoppers. We are looking for talented individuals who are committed and eager to take on challenges to deliver state-of-the-art internet products alongside top talent around the globe. Responsibilities Design and Development : Define, design, and develop major new features for current and future products, ensuring high-quality delivery on schedule. Code Quality : Write clean, testable, and reliable code, deploying continuously to large-scale, globally distributed production systems. Collaboration : Partner with designers, product managers, and cross-functional teams to deliver enhancements, platform improvements, and critical bug fixes. Engineering Excellence : Participate in code reviews to foster a culture of collaboration, knowledge sharing, and technical excellence. Problem Solving : Tackle complex engineering and user experience challenges by delivering elegant, scalable, and user-friendly solutions. Ownership : Take end-to-end ownership of key features and product areas that directly impact millions of users worldwide. Operational Reliability : Deploy, monitor, and operate production systems with a steadfast focus on performance, stability, and reliability. Continuous Improvement : Stay proactive in exploring creative solutions and continuously improving team development practices. Minimum Qualifications Education & Experience : BS or MS in Computer Science (or equivalent) with 3+ years of professional software development experience. CS Fundamentals : Strong foundation in computer science, including data structures, algorithms, and software design principles. Frontend Expertise : Advanced knowledge of responsive web development with a strong command of HTML5, CSS3, TypeScript, and modern JavaScript (ES6+). Framework Proficiency : Deep technical knowledge of JavaScript frameworks (e.g., React, Next.js, Angular) and Node.js. Modern Toolstack : Experience with modern web tools and libraries, such as Webpack, Babel, Redux Toolkit, Storybook, Atomic CSS, and RESTful APIs. Quality Assurance : Hands-on experience with Test-Driven Development (TDD) and testing frameworks such as Jest, React Testing Library, Selenium, or Playwright (preferred). Performance & Stability : Proven track record in web performance optimization, application stability, and debugging for large-scale applications. Architecture Awareness : Solid understanding of software architecture, design patterns, CI/CD practices, and code organization. Soft Skills : Excellent interpersonal and communication skills, with the ability to maintain professionalism and empathy in high-pressure situations. Modern Workflow : Proficiency in AI-assisted coding tools to optimize development velocity and maintain high code quality. Language & Location : Proficiency in both English and Mandarin Chinese is essential. Must be located in Taiwan for this position. Preferred Qualifications Industry Experience : Prior experience in the relevant industry or domain is highly desirable. Advanced Technologies : Experience with GraphQL, cloud computing (AWS preferred), and modern data fetching strategies. Observability : Proficiency in monitoring and logging stacks, such as Prometheus, Splunk, or Datadog. Agile Mindset : Experience working in an Agile/Scrum environment with a focus on iterative delivery. Innovation : Proven ability to take initiative, think innovatively, and drive technical improvements independently. Yahoo is proud to be an equal opportunity workplace. All qualified applicants will receive consideration for employment without regard to, and will not be discriminated against based on age, race, gender, color, religion, national origin, sexual orientation, gender identity, veteran status, disability or any other protected category. Yahoo will consider for employment qualified applicants with criminal histories in a manner consistent with applicable law. Yahoo is dedicated to providing an accessible environment for all candidates during the application process and for employees during their employment. If you need accessibility assistance and/or a reasonable accommodation due to a disability, please submit a request via the Accommodation Request Form ( www.yahooinc.com/careers/contact-us.html ) or call +1.866.772.3182 . Requests and calls received for non-disability related issues, such as following up on an application, will not receive a response. Yahoo has a high degree of flexibility around employee location and hybrid working. In fact, our flexible-hybrid approach to work is one of the things our employees rave about. Most roles don’t require specific regular patterns of in-person office attendance. If you join Yahoo, you may be asked to attend (or travel to attend) on-site work sessions, team-building, or other in-person events. When these occur, you’ll be given notice to make arrangements. If you’re curious about how this factors into this role, please discuss with the recruiter. Currently work for Yahoo? Please apply on our internal career site.