Can you provide an overview of your career as a senior PHP developer, including your most significant accomplishments and projects?

Over the past five years, I've worked as a senior PHP developer. One of my most significant accomplishments was leading a team in developing a robust e-commerce platform for our client, which resulted in a 30% increase in online sales. Additionally, I've been involved in building custom CRM systems and optimizing existing PHP applications for better performance and user experience.