Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model. Thorough understanding of React.js and its core principles (e.g., Virtual DOM, state, props). Experience with modern JavaScript (ES6+), HTML5, and CSS3. Knowledge of state management libraries like Redux or Context API. Familiarity with RESTful APIs and modern authorization mechanisms (like JWT). Basic understanding of unit testing with frameworks like Jest. Experience with version control systems, particularly Git.
Build and enhance user interface components using React.js. Translate designs and wireframes into high-quality code. Ensure the technical feasibility of UI/UX designs. Optimize components for maximum speed and scalability. Collaborate with backend developers to integrate React components with server-side logic. Implement responsive design principles for various device sizes. Participate in code reviews, debugging, and testing.