JavaScript has grown far beyond the browser. It now powers millions of backend systems, APIs, and cloud services through Node.js, which is one of the most widely deployed runtimes on the planet. Keeping such a critical piece of infrastructure fast, secure, and stable is a massive engineering challenge, and the work behind it is often invisible.

Rafael Gonzaga is a Principal Open Source Engineer at NodeSource and a member of the Node.js Technical Steering Committee. He’s spent years digging into the performance and security layers of Node’s core, helping shape the direction of the runtime itself. Rafael joins the show to talk about the state of Node.js performance, how benchmarking really works, the balance between speed and stability, and what it means to contribute to one of the world’s most important open-source projects.

Josh Goldberg is an independent full time open source developer in the TypeScript ecosystem. He works on projects that help developers write better TypeScript more easily, most notably on typescript-eslint: the tooling that enables ESLint and Prettier to run on TypeScript code. Josh regularly contributes to open source projects in the ecosystem such as ESLint and TypeScript. Josh is a Microsoft MVP for developer technologies and the author of the acclaimed Learning TypeScript (O’Reilly), a cherished resource for any developer seeking to learn TypeScript without any prior experience outside of JavaScript. Josh regularly presents talks and workshops at bootcamps, conferences, and meetups to share knowledge on TypeScript, static analysis, open source, and general frontend and web development.

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