Payment Gateway Site Development

@Microlent

A payment gateway like this needs more than a merchant dashboard and payment form. The important part is the payment orchestration layer behind it: creating payment sessions, routing them to processors, handling webhooks, keeping transaction status consistent, and exposing a clean API/widget to merchants. I would structure the platform so the first processor can be integrated cleanly while additional processors can be added later without rewriting the merchant or checkout logic. Merchant onboarding, API keys, payment links, hosted/embedded checkout, transaction history, fee rules and admin approval would sit around that core. I would also keep sensitive payment data with the processor wherever possible to reduce PCI scope, while implementing webhook verification, idempotency, audit logs and proper access controls. One important point I would clarify before estimating: will you operate the gateway using your own payment/acquiring accounts, or is the platform initially an orchestration layer over processors such as Stripe, PayPal or Square? If you share the target country, first processor and expected MVP scope, I can map the architecture and development phases accurately. Jenifer

@a4logic

Hello, As an established developer with a solid 15+ years of experience under my belt, I'm pleased to bring forth the skills you require to realize this payment gateway site vision. More specifically, my proficiency in web development and creating clean, scalable codes using languages like PHP and Python align well with your project. I have a knack for understanding client needs and providing intuitive solutions, which would be instrumental in crafting a user-friendly yet functionally robust gateway site. Moreover, having worked on multiple eCommerce projects with Shopify and WooCommerce brings a unique advantage to the table. My familiarity with these platforms can incorporate interchangeability as per your demand while ensuring seamless integration with popular processors such as PayPal, Stripe, Square or equivalents. I concede that gateways are inherently complex systems that require meticulous attention to security. Rest assured, I am PCI-aware certified and well-versed in implementing SSL encryption. Tokenization would be another key architectural component I believe in embedding within such fintech platforms for enhanced data security. You can count on me not only to meet the non-negotiable acceptance criteria but to exceed your expectations with clean code, industry-standard security practices, and impeccable site performance. Thanks!

@extreamcode

Hi there, This looks like a fintech build where the real challenge is trust, control, and clean payment flow , not just a polished interface. I’ve built PHP/MySQL and API-driven web systems with dashboards, merchant workflows, Stripe/PayPal integrations, and admin panels, so I can help you structure the public site, merchant dashboard, secure payment endpoints, and flexible processor layer with clarity from day one. I’ll also keep tokenization, SSL, and PCI-aware practices in focus so the platform is built for reliability and future expansion. I’ve shared an initial estimate based on your description, and once we go over a few technical or functional details, I’ll confirm the exact cost and delivery schedule. If you already have preferred payment rails, API rules, or a reference flow for merchant approval and transaction verification, I can align the build to that quickly. Do you want the first version to support one processor deeply, or a modular gateway layer for multiple rails from the start? Thanks, Asad

@rizwange4

I have experience building secure payment platforms, merchant dashboards, API integrations, and transaction-based systems. I can develop a modern payment gateway inspired by the referenced platforms while creating a unique UI and scalable architecture. The system will include merchant registration, payment links/checkout widgets, real-time transactions, admin controls, analytics, secure APIs, and processor integrations such as Stripe/PayPal. Security, tokenization, SSL, and PCI-aware development will be prioritized. I can share relevant payment/API projects and discuss the recommended architecture, timeline, and fixed cost. Best regards, **Muhammad Rizwan LA**

@seefattechnologi

Certainly------------PAYMENT GATEWAY WEBSITE--I believe I will satisfied you by completing this task with high Quality and Accuracy I am highly proficient to work on this project . I am an CREATIVE/Multitalented PHP/Full stack developer having rich experience with all the latest technologies with so many successful Tasks. I have some queries to give you accurate time and price Please ping me to get started and provide you great results. Thanks!!!

@Hammadhassan21

Howdy, The real strength of a payment gateway like this comes from building the orchestration layer correctly from day one so adding new processors or payment rails later doesn’t require rebuilding the entire system. Merchant onboarding, payment-link/widget creation, processor abstraction, transaction verification, fees, and real-time status all need to work consistently behind a clean and reliable architecture, rather than simply reproducing the public facing flow of KotaniPay or Boodil. I would structure the integration layer so processors such as Stripe, PayPal or another provider can be swapped without rewriting the merchant facing API. The dashboard and admin side can then expose transaction and fee data cleanly without coupling the UI directly to any single processor, keeping the platform flexible as it grows. Do you already have a preferred backend stack for the API and payment-processing layer? Portfolio Link: https://www.freelancer.com/u/Hammadhassan21 Best regards, Hammad Hassan

@onkarkulkarni8

Hi, I can help you with "Payment Gateway Site Development" as per your given project description. We can discuss more in detail during a chat conversation when you are available. I've worked on many PHP projects in recent times. So I am confident on achieving your expected Goals. Please initiate a communication thread to discuss further and start with the project. ⭐ 5.0/5 from a recent client: "A more professional version: “Excellent work! The job was completed within the committed timeline. Great quality, professionalism, and timely delivery. Highly appreciated and recommended.”" Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.

@qasaryome

Hi there, You’re building a real merchant payments platform, not just a marketing website. I can help structure it around secure merchant onboarding, payment links, embeddable checkout, transaction tracking, admin controls, processor integrations, and a clean API layer. I’d recommend a modular backend architecture so Stripe, PayPal, Square, or other payment rails can be added or replaced without disrupting the core platform. Security would be handled with encrypted transport, tokenized payment flows, strict role permissions, audit logging, webhook verification, and PCI-aware architecture that avoids storing sensitive card data directly. I can also build the responsive public site, merchant dashboard, admin panel, API documentation, onboarding flow, fee controls, and reporting foundation. A few questions: 1. Which country will the platform operate from? 2. Are you acting as a payment facilitator or connecting merchants directly to existing processors? 3. Which processor should be integrated first? Qasar.

@corpmember29

HEY I UNDERSTAND I WILL BUILD A SECURE PAYMENT PLATFORM WHERE MERCHANTS CAN SIGN UP, COLLECT PAYMENTS, AND TRACK EVERY TRANSACTION FROM ONE DASHBOARD. I have 12+ years of IT development experience and have worked on complex payment, API-driven and SaaS platforms. I can build your gateway with a scalable architecture inspired by the required functionality while creating a completely fresh UI/UX. Core flow: Merchant signup → Admin approval/KYC → Payment link or embedded checkout → Secure payment processing → Webhook verification → Transaction update → Merchant dashboard → Settlement/reporting. Key features: • Responsive public website + merchant dashboard • Merchant/user management and transaction history • Payment links and embeddable checkout • Secure REST APIs for payment initiation/verification • Stripe/PayPal/Square-ready integration layer • Admin panel for merchants, fees, transactions and system monitoring • Real-time transaction status and basic analytics • Role-based access, encryption, tokenization and PCI-aware architecture • Webhooks, logging, validation and fraud/security considerations • Complete API and deployment documentation I’ll design the processor layer modularly so additional payment rails can be added without rebuilding the core system. I’m ready to review the reference platforms and define the Phase 1 architecture, milestones and timeline. ThankS CHIRISTINA

@giaphung2k1

Hello I will build your custom payment gateway website with a secure merchant Best regards, Giáp Văn Hưng

@mahig47

Hello, This payment gateway platform needs more than a polished website it needs a reliable merchant ecosystem where businesses can onboard, create payment links or embedded checkout experiences, process transactions, and monitor payments in real time. I’ve worked on payment, e-commerce, financial, and transaction-based platforms, so I understand the importance of secure payment workflows, accurate transaction records, and a simple merchant experience. I can build the responsive public website, merchant dashboard, secure API layer, and administration panel with merchant onboarding, transaction history, analytics, payment-link generation, embedded checkout, merchant approval, configurable fees, and system monitoring. The integration architecture will be structured around a flexible payment layer so processors such as PayPal, Stripe, Square, or additional providers can be added or replaced without rebuilding the core platform. I’ll also focus on secure authentication, API protection, payment verification, reliable transaction handling, and clear separation between merchant and administrator access. The merchant dashboard will provide a straightforward view of payments and activity, while the admin side will give you centralized control over merchants, fees, transactions, and platform health. I’ll provide clean documentation covering API usage, onboarding, integrations, and day-to-day management. Regards, Nikita Gupta

@marjanahmed13

Hi! My name is Marjan and I'm here to offer you my services as a skilled applicant with over a decade of experience working on Freelancer.com. I believe I am the best fit candidate for this project due to my extensive experience; I would like to have a discussion to get to know that we both are on the same page. Once the scope will be locked, I will start working on it right away.

@ozbas

With over a decade of professional experience as a Full-Stack software engineer, my proficiency spans various areas of web development. My expertise in HTML and PHP development combined with my skills in API development equips me with the necessary knowledge and ability to create a payment gateway website that matches your vision for functionality. I understand the vital importance of security in fintech products and will ensure that I employ industry-standard practices to maintain the security and privacy of all transactions on the site. My extensive experience integrating Payment gateways APIs including PayPal, Braintree, Stripe, etc. further affirms my competency for this project. In my past projects, one noteworthy example being a payment processing system for an e-commerce platform that handled thousands of transactions daily. These hands-on experiences have equipped me with a deep understanding of developing clean codes and maintaining smooth performance in such complex applications. Working closely with you is important to me. Moreover, as your project progresses, I will provide free technical support as well as deliver well-commented source code after the successful completion of your payment gateway site so that it can be easily maintained and any required updates can be made promptly.

@naminghn

Hi there, I understand the need for a robust and user-friendly payment gateway that meets industry standards. I can create a responsive public site along with a comprehensive merchant dashboard, allowing seamless sign-ups and transaction tracking. Additionally, I’ll implement secure API endpoints for external integrations and an admin panel for efficient management. With a focus on security and clean code, I guarantee high standards in all my work. I would be happy to share my insights from similar projects I have completed. Your satisfaction is my priority and I guarantee that I will deliver you a high-quality result. Regards, Ali

@Solution24Seven

? **Let’s Build a Powerful Payment Gateway Platform — Built to Scale! ?** Hi, We’re **Solution24Seven**, a professional software development team experienced in **custom payment platforms, API development, merchant dashboards, admin panels, and secure payment integrations**. We understand you’re looking for more than a simple website—you need a **complete payment ecosystem** where merchants can onboard, create payment links/checkout widgets, process payments, and monitor transactions in real time. ### ? What We’ll Build: ✅ Modern responsive public website ✅ Merchant registration & dashboard ✅ Payment links + embeddable checkout ✅ Real-time transaction tracking & analytics ✅ Secure payment APIs for external apps/stores ✅ Admin panel for merchants, fees & system monitoring ✅ Stripe, PayPal, Square or processor-ready architecture ✅ Scalable integration layer for future payment rails ✅ SSL, tokenization & PCI-aware security practices ✅ Complete API & system documentation ? We’ll focus heavily on **clean architecture, security, scalability, and performance**, so the platform can grow without needing to rebuild the core system later. ? **Our No-Risk Approach:** First, we’ll complete your work **100%**, you review everything, and **then you can award the project—no issue at all.** Let’s create a **professional, secure, scalable payment platform with a completely fresh identity.** **Solution24Seven Team**

@protovosolutions

Hello, We would be glad to assist you with this project. Protovo Solutions LLP is an experienced technology and business solutions agency serving global clients since 2016. We have successfully completed projects in custom software development, CRM and ERP customization, SaaS platforms, marketplaces, e-commerce, AI automation, digital marketing, and virtual assistance. Our team has hands-on expertise in Laravel, CodeIgniter, PHP, Node.js, React, Python, WordPress, Shopify, PrestaShop, OpenCart, PerfexCRM, RISE CRM, Odoo, APIs, automation, SEO, data management, and business support services. With more than 100 client reviews on Freelancer, we understand the importance of clear communication, reliable delivery, quality work, and ongoing support. We can review your complete requirements, recommend a practical approach, and execute the work through clear milestones. Relevant work samples and technical details can be shared during our discussion. Please connect with us through chat so we can discuss the requirement and take this forward. Kind regards, Protovo Solutions LLP

@Zaiyan

I can develop a full-featured payment gateway website that allows merchants to sign up and generate payment links, similar to kotanipay.com. My first step will be to outline the site architecture and confirm the specific payment processors you want to integrate initially. I’m based in Toronto, work quickly, and ensure consistent communication throughout the project.

@vimal7320

As a skilled WordPress Developer with a background in building and maintaining complex websites and e-commerce platforms, I believe I'm the perfect fit for your payment gateway site project. Over the years, I have honed my proficiency in WordPress, Elementor Pro, WooCommerce and deepened my understanding of key functionalities such as payment gateways, user management and analytics that are crucial to this project. My ability to design clean codes with industry-standard security practices sets me apart from other developers. I not only ensure websites look professional but perform smoothly with effective SSL implementation, tokenization approaches, and PCI-aware development. 'Performance' is not just a buzzword to me; it's a standard I strive to meet every single time. In addition to my technical expertise, my experience with API endpoints for third-party merchant integrations will prove valuable for this project – a key requirement in your job description. My goal remains consistent - delivering solutions that work! Let’s discuss more on how we can shape your vision into an impeccable reality!

@arslanshahid386

Hi, I can help you with this project. I have relevant experience with PHP, HTML, API Development and can handle the work from development to testing and delivery. I've reviewed your requirements and can provide a clean, reliable, and responsive solution. Let's discuss the details and get started. Best, Arslan Shahid