An Internet technology developer, also known as a web developer, designs, codes, and modifies websites, from layout to function, according to a client's specifications. They create visually appealing sites that feature user-friendly design and clear navigation using HTML, CSS, JavaScript, and other programming languages. They strive to create a website that meets the customer's brand or business's visual identity and desired functionality, which can include e-commerce capabilities and interactive elements. They also test and debug websites, ensure site compatibility across different browsers and devices, and implement SEO strategies to optimize web visibility and ranking.