Hiring a Meteor.js developer can greatly benefit your project, as Meteor.js is a full-stack JavaScript platform that enables rapid development of web and mobile applications. It simplifies coding, reducing the amount of code required, and offers real-time update features, enhancing user experience. Meteor.js supports both Android and iOS, making it ideal for cross-platform development. It also offers an extensive library and community support, ensuring any potential issues can be quickly resolved. Overall, a Meteor.js developer can help you create efficient, high-performing applications with less time and effort.