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I'm building an online payment product that supports credit/debit cards and bank transfers. It will need to handle multiple specific currencies. Key Requirements: - Online payment processing - Support for credit/debit cards and bank transfers - Multi-currency functionality Ideal Skills & Experience: - Experience with payment gateway integrations - Strong understanding of multi-currency transactions - Familiarity with security protocols in online payments
Project ID: 40614250
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96 freelancers are bidding on average ₹33,191 INR for this job

Hello there, I will build your payment product with credit/debit card processing, bank transfer support, and multi-currency handling, all wrapped in PCI-compliant security from day one. On a similar payment integration, structuring the currency conversion layer at the gateway level (rather than application level) eliminated rounding discrepancies and simplified reconciliation significantly. Questions: 1) Which specific currencies do you need supported at launch? 2) Do you have a preferred payment gateway (Stripe, Adyen, etc.) or is that part of the decision? Share your current tech stack details and I will outline the integration architecture by tomorrow. Looking forward to potentially working together. Thanks, Kamran
₹22,295 INR in 10 days
8.6
8.6

can you please discuss on chat
₹35,000 INR in 7 days
7.8
7.8

With over 13 years of diverse experience in the tech industry, Walking Dreamz Technologies is skilled in catering to exact project requirements. A key highlight of our work includes multifarious MERN web apps that have streamlined payment interfaces and integrated credit/debit cards and bank transfer systems as per the diverse range of currencies our clients deal with. This not only showcases our technical proficiency but also signifies a strong understanding of multi-currency transactions. Understanding the criticality of online payment security, we're adept at implementing the highest standard protocols to ensure your customers' information stays safe. We have successfully safeguarded data across various platforms, attesting our capability to handle and overcome all AI & automation-related challenges - a unique skill set that can be valuable for your product development. To put it simply, choosing us means opting for clear communication, clean code, and predictable delivery. Completing 300+ projects with positive client reviews on Freelancer.com, we thrive in turning every client relationship into long-term support or future development opportunities. Finally, my direct involvement throughout the project ensures no communication gaps exist and better quality control. Let's start a conversation to explore further!
₹35,000 INR in 7 days
7.8
7.8

Hi, I checked your "Payments Product Development" project and it looks like understanding the existing workflow will be important before making any changes. I've worked on similar PHP projects involving php, website design, ecommerce, payment gateway integration, security, api integration, payment processing and prefer delivering work in small milestones so everything stays easy to review and adjust if needed. If you can share a few more details about the current setup and expected outcome, I'll suggest the best approach and provide an accurate timeline. ⭐ 5.0/5 from a recent client: "Project was delivered before Time with Best professional Knowledge One could ever held. Thanks for the support" Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
₹30,000 INR in 7 days
7.5
7.5

Having successfully delivered over 200 projects, including several in the realm of eCommerce and Website Design, I know a thing or two about building trusted payment platforms. With an intricate understanding of modern payment gateways and their integrations, I am well-equipped to not only develop your online payment product but implement security measures that stand up to potential vulnerabilities. My broad language skillset extends to Laravel, React, Shopify and as a Full Stack developer, I am fluent in both front and back end languages. I can craft a solution that seamlessly combines credit/debit card functionality alongside bank transfers supporting multiple currencies. What sets me apart is my profound understanding of multi-currency transactions; ensuring your payment system remains user-friendly regardless of location. An ever-present component in my work is scalability; the knowledge that technologies continuously adapt pushes for me to create solutions designed for possible future expansion. Offering long-term support, my commitment doesn't end with the completion of a project—I will be with you every step to ensure your payments product continues functioning optimally in this ever-evolving digital world. Choosing me is choosing professional experience, reliability, and lasting results. Let's bring your vision to life together!
₹37,500 INR in 7 days
6.5
6.5

Building a payment product with card and bank transfer support across multiple currencies is a solid challenge. I recently helped a client in e-commerce set up multi-currency processing with smooth bank transfer options, ensuring funds settled correctly and securely in different regions. To handle your payment flows, I’d first recommend verifying which payment gateways match your currency and transfer needs, plus their processing fees and settlement times. How are you planning to manage currency conversions and exchange rate updates? Also, have you scoped the required compliance measures for each payment method? From experience, optimizing for security protocols like PCI-DSS compliance early on avoids costly fixes later. And setting up clear error handling for bank transfers helps reduce payment failures, which is often overlooked. Once we nail down these details, I can build the payment integration and multi-currency logic efficiently, ready for testing and launch. I’m ready to start mapping out this right away and get your payment product processing smoothly.
₹20,000 INR in 7 days
6.0
6.0

Your multi-currency payment system will fail PCI compliance audits if card data touches your servers directly. This creates legal liability and blocks you from processing in regulated markets like the EU. Quick questions - are you planning to store tokenized card data for recurring payments? And what's your expected transaction volume per month once you scale past the MVP phase? Here is the architectural approach: - PAYMENT GATEWAY INTEGRATION: Implement Stripe or Braintree with vault tokenization so card data never hits your infrastructure, ensuring PCI-DSS Level 1 compliance from day one. - MULTI-CURRENCY PROCESSING: Build dynamic FX conversion using real-time rate APIs with fallback logic to prevent transaction failures during rate feed outages. - SECURITY PROTOCOLS: Deploy end-to-end encryption, webhook signature validation, and idempotency keys to prevent duplicate charges during network retries. I've built similar payment platforms for 2 fintech clients processing $4M+ monthly across 12 currencies. Let's schedule a 20-minute technical call to map out your compliance requirements before you start building.
₹31,500 INR in 10 days
6.2
6.2

Multi-currency payment processing sounds straightforward until you hit the edge cases, like settlement timing differences between card networks and bank transfers, or handling partial refunds in a currency that's fluctuated since the original charge. I'll wire up the core payment flow with Stripe or a similar gateway depending on your target regions, build the multi-currency logic with proper decimal handling per currency (JPY has zero decimals, for example, while most others use two), and set up the bank transfer reconciliation layer. One thing worth flagging early: PCI compliance scope changes significantly depending on whether you tokenize on the client side or pass raw card data through your server. Tokenization keeps you out of the heavy audit requirements. 1) Which specific currencies and regions are you targeting? Best regards, Shayan
₹22,000 INR in 9 days
5.6
5.6

Hi, I would be happy to help you with your project. I am a Senior Full Stack Web Developer with 18+ years of experience in PHP, Python, Laravel, Django, Flask, Magento 2, REST APIs, AWS, MySQL, and PostgreSQL. I have successfully delivered 100+ web applications and 40+ eCommerce projects for clients across Healthcare, SaaS, Retail, and Enterprise industries. For your project, I can: Understand your requirements carefully before starting. Develop clean, scalable, and secure code. Deliver responsive and high-performance solutions. Provide regular progress updates. Ensure timely delivery with post-launch support. Why choose me? 18+ years of professional experience. Strong backend and API integration expertise. Experience with complex business applications and eCommerce platforms. Clean coding standards and long-term maintainable solutions. Excellent communication and quick response time. I am available to start immediately and can discuss the project in detail to provide the best solution. Looking forward to working with you. Best regards, Manish
₹35,000 INR in 7 days
5.8
5.8

Hey, We will build your payment processing platform with card and bank transfer support, configured for your specific currency requirements. For multi-currency handling, we will structure the payment logic so each transaction locks the exchange rate at checkout. This prevents mismatches between what the user sees and what settles. We will also implement 3D Secure for card payments and tokenization to keep sensitive data off your servers. A couple of quick things to confirm: 1) Which currencies do you need supported, and do you have a preferred gateway (Stripe, Adyen, or another)? 2) Will bank transfers be instant (via open banking) or traditional wire? The number quoted here is a starting estimate. The exact cost and timeline will be confirmed after we go through the full scope together. Looking forward to discussing further. Best regards, Faizan
₹22,273 INR in 10 days
5.7
5.7

Credit/debit cards, bank transfers, and named currencies should be designed around the gateway rules first, not bolted onto a checkout screen after. The currency list matters here because settlement, refunds, bank transfer rails, and webhook statuses can change a lot depending on provider and country. I would start by mapping the currencies you need against the chosen gateway/API, then build the transaction flow around that: create payment intent/order, handle redirects or hosted fields where needed, store only safe references, verify webhooks server-side, and keep a clean transaction status model for pending, paid, failed, refunded, and disputed states. M1: Gateway/currency mapping, transaction model, API flow design, INR 16,500, 4 days. M2: Card and bank transfer integration with test payments, webhook verification, status updates, INR 18,000, 6 days. M3: Multi-currency handling, failure/refund paths, security pass, testing notes, INR 15,500, 4 days. That makes INR 50,000 over 14 days as a starting price from the current brief. I would firm it up once the gateway choice and exact currencies are locked, since bank transfer support is the bit most likely to move the scope. I can keep the first version focused on a working, testable backend payment flow, then any checkout UI can sit on top of that without hiding payment state problems. Which payment provider are you planning to use, Stripe, Razorpay, PayPal, or something else?
₹50,000 INR in 14 days
5.6
5.6

Hello, I'd be happy to help build your online payment platform. With 5+ years of experience in full-stack development and payment gateway integrations, I can deliver a secure, scalable solution that supports multiple currencies, credit/debit cards, and bank transfers. I will provide: * Secure payment gateway integration for cards and bank transfers * Multi-currency payment processing with seamless transaction handling * Strong security implementation following industry best practices * Clean, scalable architecture with reliable performance * End-to-end testing and post-launch support I'm confident I can build a secure and efficient payment solution tailored to your business needs. I'd be happy to discuss your preferred tech stack and payment providers to get started. Looking forward to working with you! Warm Regards, Monica Bhatia
₹20,000 INR in 2 days
5.3
5.3

With my solid 9+ years of experience in eCommerce, PHP and Website Design, I am ready to take on the challenge of developing your online payment product. I understand the key requirements you need: online payment processing, support for multiple payment methods and multi-currency functionality; my experience with payment gateway integrations and strong grasp of multi-currency transactions align perfectly with your needs. As a veteran in this field, I value security protocols in online payments immensely. I guarantee to provide a secure platform that robustly handles credit/debit cards and bank transfers. Additionally, my expertise extends to creating high-performance websites that are cross-browser compatible and responsive for a seamless user experience across different devices. Choosing my team for this project also comes with extra benefits including cost-effectiveness and even free support after the delivery for 3 months. Moreover, thanks to owning our domain and hosting services, we can guarantee you affordable services without compromising quality. Let's join hands to bring your ideas to reality! Thanks again for considering my proposal.
₹35,000 INR in 7 days
5.4
5.4

Hi, We can help you build a secure, scalable online payment platform supporting card payments, bank transfers, and multi-currency transactions. Our team has experience integrating payment gateways, handling transaction workflows, implementing secure payment protocols, and building systems that support multiple currencies with reliable processing and compliance considerations. We’ll focus on creating a smooth payment experience, secure architecture, proper API integrations, transaction handling, and scalability for future expansion. We’d love to discuss your payment flow, preferred gateways, supported currencies, and share relevant fintech/payment integration experience. Let’s connect and build a reliable payment solution for your product.
₹30,000 INR in 7 days
4.5
4.5

Hi, I can help build a secure, scalable payment platform that supports credit/debit cards, bank transfers, and multi-currency transactions. With 10+ years of full-stack development experience, I can integrate trusted payment gateways, webhook handling, transaction logging, and a reliable payment workflow. What I'll deliver: Credit/debit card and bank transfer integration Multi-currency payment support Secure payment flow with webhook processing Transaction history and payment status tracking Admin dashboard for monitoring payments Production-ready deployment and testing I would be happy to discuss your target countries, preferred payment providers, and technical stack to recommend the best solution. Thank You.
₹45,000 INR in 15 days
4.6
4.6

Hello, I would love to work on your project. I have solid experience in designing and developing modern, responsive, and high-performance websites that are visually appealing and optimized for speed, SEO, and user experience. I carefully read project requirements before starting and ensure every detail is implemented exactly as requested. Whether it's a landing page, business website, eCommerce store, bug fixing, Bootstrap, HTML, CSS, JavaScript, PHP, WordPress, or custom web development, I can deliver clean, scalable, and well-structured code. My priority is quality, timely delivery, and clear communication throughout the project. I provide regular progress updates and remain available for revisions until you are completely satisfied with the final result. I believe in building long-term relationships with clients by delivering reliable work and exceeding expectations. If required, I can also suggest improvements to enhance the design, performance, and overall user experience of your website. I am ready to start immediately and can dedicate my full attention to your project. Let's discuss your requirements in detail so I can provide the best solution within your budget and timeline. Thank you for considering my proposal. I look forward to working with you and delivering excellent results. Best Regards, Yashvendra Singh Full Stack Web Developer
₹35,000 INR in 7 days
4.2
4.2

Hi, Thanks for sharing your project. It aligns well with work I’ve successfully completed for other clients, and I’m confident I can deliver a high-quality solution tailored to your requirements. Before providing an accurate timeline, scope, and budget, I’d like to clarify a few key details to ensure we're aligned from the start. Freelancer’s proposal character limit makes it difficult to cover everything thoroughly here. If you're available, let's connect via chat. I can walk you through similar projects I've completed, discuss the best approach for your specific requirements, and answer any questions you may have. Once I understand your expectations, I'll provide a clear execution plan with realistic timelines and pricing. I’m ready to get started as soon as we finalize the details and look forward to working with you. Best regards, Mayank Sahu
₹35,000 INR in 7 days
4.0
4.0

Dear Client, I can develop your online payment platform with secure credit/debit card processing, bank transfer support, and multi-currency functionality as per your requirements. I have 6+ years of experience in payment gateway integration and custom web application development. I can integrate trusted payment providers like Stripe, PayPal, or other suitable gateways, ensuring secure transactions, PCI-compliant implementation, and smooth multi-currency support. The platform will be fast, scalable, and built with strong security practices to protect customer payments. I have worked on similar payment integration projects and can share my work links in the chat box. Looking forward to your response on chat box. Thanks.
₹20,000 INR in 10 days
4.0
4.0

Your project requires more than just connecting a payment gateway. The critical part is designing a reliable transaction flow that can safely process card payments and bank transfers while handling currency conversion, transaction states, retries, webhooks, and auditability. I can build the backend architecture for this payment product using a scalable service-oriented approach, including secure API integration with payment providers, multi-currency support, transaction lifecycle management, and webhook/event processing. The implementation can include: - Card and bank transfer payment flows - Multi-currency transaction handling - Secure tokenized payment processing - Webhook validation and reconciliation - Transaction status tracking and retry logic - REST APIs for frontend/mobile integration - Database modeling for payments and settlements Security and reliability are especially important in payment systems. I follow industry-standard practices for authentication, encrypted communication, idempotency handling, and fault-tolerant processing to reduce inconsistent payment states. I can also help structure the project to support future expansion such as additional gateways, recurring billing, or wallet integrations without major refactoring. If you already have a preferred payment provider or technical stack, I can adapt the implementation accordingly and define the delivery milestones before development starts.
₹48,535.70 INR in 14 days
3.7
3.7

Hi, I have experience building fintech and payment-enabled platforms, including AlgoSuccess (AI-powered fintech platform), SaaS products, marketplaces, and subscription-based applications with secure payment workflows, wallet management, recurring billing, and third-party payment gateway integrations. Looking forward to discussing your project. Regards, Anil
₹50,000 INR in 12 days
3.2
3.2

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