This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Developer (Front-End) based in United States. This role offers the opportunity to design and build modern, high-performing web applications in a collaborative technology environment.The position focuses on creating intuitive user experiences through advanced front-end engineering and human-centered design principles.You will contribute to complex digital solutions by leveraging ReactJS, JavaScript, cloud technologies, and scalable architecture patterns.As a senior technical contributor, you will influence development standards, mentor engineers, and drive best practices across teams.The role combines hands-on coding, UX collaboration, technical leadership, and innovation across impactful projects.You will work in an agile environment where quality, security, performance, and user experience are core priorities.