WordPress website with payment functionality

We are looking for an experienced WordPress developer to build a professional, modern, and fully responsive website with integrated payment functionality. The website should provide a smooth user experience, allowing visitors to explore the available services/products, submit the required information, and complete payments securely through the website. ### Scope of Work The selected developer will be responsible for: * Developing a complete WordPress website based on the provided requirements * Creating a clean, modern, and professional user interface * Building the required pages and sections in WordPress * Implementing responsive Web Design for desktop, tablet, and mobile devices * Setting up and configuring the required payment gateway * Integrating the payment process with the website's forms/checkout flow * Ensuring successful, failed, and cancelled payment states are handled correctly * Configuring email notifications for relevant submissions and payment transactions * Implementing any required custom functionality using WordPress/PHP where necessary * Connecting third-party APIs or services if required * Ensuring the website is secure and follows best practices for handling payments * Optimizing the website for performance and usability * Testing the complete user journey from form submission/order creation through successful payment * Fixing any bugs or layout/functionality issues identified during testing ### Payment Functionality The payment system should be properly integrated into the website rather than simply adding a payment button. The expected flow may include: 1. User selects a product/service or required option 2. User enters the required information 3. The website calculates or displays the applicable amount 4. User proceeds to checkout/payment 5. Payment is processed through the selected gateway 6. The user receives confirmation after successful payment 7. The website/admin receives the relevant transaction or order information The exact payment gateway and workflow will be discussed with the selected developer. Requirements We are looking for someone with strong experience in: * WordPress development * Custom WordPress functionality * Payment gateway integration * WooCommerce, if required for the project * PHP and WordPress hooks/functions * HTML, CSS, and JavaScript * Responsive Web Design * API and third-party service integration * Website security and performance optimization The developer should be comfortable working with an existing WordPress setup as well as implementing custom functionality where plugins alone are not sufficient. Deliverables * Fully functional WordPress website * Complete payment integration * Responsive design across devices * Tested payment and checkout workflow * Proper success/error handling * Required email notifications * Clean and maintainable implementation * Final testing and bug fixes Please include examples of "WordPress websites where you have implemented payment functionality or custom checkout/payment flows" in your proposal. Also mention which payment gateways you have previously worked with and briefly describe your approach to implementing a secure payment workflow.