A WordPress developer provides services related to the development, customization, and maintenance of websites built using the WordPress platform. They are responsible for creating custom themes, plugins, and modules that meet the client's specific requirements. A WordPress developer can also assist with website migration, optimization, and troubleshooting issues that arise with the website. They work with WordPress programming languages such as PHP, HTML, CSS, and JavaScript to create functional and visually appealing websites. In addition, a WordPress developer may also offer consulting services, provide training on how to use WordPress, and offer ongoing support and maintenance services to ensure the website stays up to date and secure.