As a Senior Front-End Developer at Topsort, you'll be responsible for building and optimizing user-facing features that power our platform, working closely with designers, product managers, and backend engineers to deliver seamless and responsive web experiences. You'll work primarily with modern JavaScript frameworks like React (and ideally Next.js), focusing on performance, accessibility, and scalability. This role is ideal for someone who thrives in a fast-paced startup environment, enjoys turning complex problems into intuitive interfaces, and takes pride in clean, maintainable code.