TypeScript Developer TypeScript is a superset of JavaScript that adds type safety. This means that TypeScript can help to prevent errors in JavaScript code by ensuring that the types of variables and expressions are correct. TypeScript Developers are responsible for developing and maintaining TypeScript applications. They work with other developers to design and implement new features, troubleshoot and fix bugs, and stay up-to-date on the latest TypeScript technologies. The ideal candidate for a TypeScript Developer role will have experience with JavaScript and TypeScript. They will also have a strong understanding of TypeScript features, such as type safety, interfaces, and classes.