As a seasoned Linux System Administrator, my skills and expertise align perfectly with your needs for a PHP developer well-versed in Razorpay API integration. I have over 9 years of comprehensive experience in web hosting, web security, and programming in fields similar to yours - like software architecture and MySQL. My extensive knowledge of variant operating systems (Debian, Ubuntu, Centos, Redhat...) and cloud platforms (AWS, Google Cloud, Azure...) enables me to tackle any technical challenges and ensure secure payment processing.
Furthermore, my proficiency with PHP frameworks such as Laravel and Codeignitor makes me adept at constructing stable and functional systems like what you're envisaging. On previous projects, I have created seamless payment solutions integrating APIs for various CMS/E-commerce platforms like WordPress, Joomla, and Magento just to name a few. This fine-tuned experience uniquely positions me to provide you not only a smooth Razorpay integration but also bespoke PHP scripts that 'collect & initiate payments from parameters' intelligently using the API.