We are looking for a talented and experienced Front End Engineer (L5) to join our team. In this role, you will design, develop, and deliver high-quality, performant, and accessible user interfaces that delight customers. You will work closely with product managers, UX designers, and backend engineers to build scalable front-end solutions that power critical customer-facing experiences. Export Control Requirement: Due to applicable export control laws and regulations, candidates must be a U.S. citizen or national, U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum. Key job responsibilities - Design & Development: Architect and implement complex, responsive, and accessible front-end features using modern JavaScript frameworks (React, Angular, or Vue.js) and web technologies (HTML5, CSS3, TypeScript). - Code Quality: Write clean, well-tested, and maintainable code. Conduct and participate in code reviews to uphold engineering best practices. - Performance Optimization: Identify and resolve performance bottlenecks to ensure fast page load times, smooth interactions, and optimal Core Web Vitals. - Cross-Functional Collaboration: Partner with UX/UI designers to translate wireframes and mockups into pixel-perfect, interactive experiences. Collaborate with backend engineers to define and consume APIs. - Technical Leadership: Mentor junior engineers, contribute to technical design documents, and drive adoption of front-end best practices across the team. - Operational Excellence: Own the operational health of front-end services, including monitoring, alarming, and on-call support. Participate in root cause analysis and incident response. - Innovation: Stay current with emerging front-end technologies, tools, and trends. Propose and prototype new approaches that improve developer productivity and customer experience. Basic qualifications - 3+ years of professional front end development experience - Knowledge of professional software engineering & best practices for full software development life cycle, including coding standards, software architectures, code reviews, source control management, continuous deployments, testing, and operational excellence - Experience with RESTful APIs, WebSocket, and asynchronous programming patterns - AI fluency Preferred qualifications - Bachelor's degree in computer science or equivalent Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status. Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit https://amazon.jobs/content/en/how-we-hire/accommodations for more information. If the country/region you’re applying in isn’t listed, please contact your Recruiting Partner. The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage), 401(k) matching, paid time off, and parental leave. Learn more about our benefits at https://amazon.jobs/en/benefits. USA, WA, Redmond - 143,700.00 - 194,400.00 USD annually