As a PHP web developer with 3 years of experience, I have expertise in developing websites and web applications using HTML5, CSS3, jQuery, jQuery Ajax, Bootstrap, MySQL, and Core PHP. Here are some of the services that I can offer to employers as a freelancer:

• Website Development: I can develop custom websites from scratch using my knowledge of HTML5, CSS3, jQuery, and Bootstrap. I can create responsive designs that work well on different devices, and ensure that the website is optimized for speed and performance.
• Web Application Development: I can build web applications using Core PHP and MySQL. 
• API Integration: I can integrate APIs into websites and web applications, allowing for seamless communication with third-party services such as payment gateways, social media platforms, and other web services.
• Bug Fixing and Maintenance: I can identify and fix bugs in existing websites and web applications, ensuring that they continue to function properly. I can also provide ongoing maintenance and support services to keep websites up-to-date and secure.
• Performance Optimization: I can optimize the performance of websites and web applications to ensure that they load quickly and are responsive to user interactions. This can involve techniques such as caching, compression, and code optimization.

Overall, my expertise in PHP web development and related technologies enables me to offer a range of services to employers as a freelancer. I am committed to delivering high-quality work that meets the needs of clients and helps them achieve their business goals.