Hiring a JAM-stack developer can significantly enhance your project's performance, security, and scalability. They leverage Javascript, APIs, and Markup (JAM), allowing for faster delivery and efficient content updates. JAM-stack developers build websites that are pre-rendered and served directly from a CDN, reducing server load and increasing speed. They can create serverless applications, reducing the risk of server-side vulnerabilities. With their skills, you'll get a modern, efficient, and secure web application that can handle high traffic and adapt to your business needs.