Software engineering is a basic concept in the digital age. The seamless operation of a website is integral to the functioning of businesses, education, government services, and personal communications. As a foundation of our online interactions, a website must be meticulously crafted to provide an outstanding user experience supported by an innovative user interface. It is essential to explore core services required to host, manage, and access a secure modern website. Design and Implementation of Software Engineering for Modern Web Applications serves as a comprehensive guide to understanding the technologies and methodologies essential for designing, developing, and maintaining modern, secure websites. From domain structures and domain name systems to web protocols, database servers, and web browsers are introduced to the network concepts critical to server technologies. Covering topics such as requirements engineering, web applications, and website management, this book is an essential resource for postgraduate students, educators, web developers, researchers, academicians, and more. The third section covers the implementation of web applications using various programming languages. This part includes detailed guidance on developing different types of web applications, such as personal websites using C#, point of sale web applications using PHP, and online examination systems.