Internal tools, often misunderstood, play a crucial role in enhancing productivity within companies, and Chad Rosen, a seasoned software engineer, emphasizes the importance of treating them with the same quality standards as user-facing applications. Throughout his career, Chad has developed a variety of internal tools using technologies like Ruby, Python, and Node, focusing on speed of delivery and maintenance. He highlights the significance of optimizing internal tools for usability and leveraging existing company infrastructure. While advocating for the value of internal tools, Chad stresses the need for careful planning and stakeholder engagement to ensure adequate resources and headcount, and he advises balancing the decision to build versus buy based on specific criteria, such as cost and integration needs. Companies like Stripe are admired for their effective internal tooling, serving as inspiration for others seeking to achieve similar success.