Plug-and-Play Payment Processing API

@OutsourceMan

⭐⭐⭐⭐⭐ Thank you for outlining your requirements. CnELIndia, led by Raman Ladhani, can help you deliver a fully source-available, compliance-ready payment-processing module tailored for seamless integration into your FinTech stack. Our approach includes: • Building a production-grade payment core in your preferred stack (Node.js / Java / Python), covering cards, e-wallets, bank transfers and AEPS, with multi-currency logic baked in. • Delivering clean, extensible, fully documented source code designed for internal audits and future enhancements. • Exposing REST-style endpoints with complete request/response samples plus a Postman or Swagger collection for immediate testing. • Providing a robust database schema with migration scripts and an integration/deployment guide aligned to your environment. • Supplying unit and integration tests validating all rails across multiple currencies. • Offering commercial-use licence terms granting full modification and deployment rights. We can support sandbox demos, integrations, and live-credential onboarding to ensure a smooth, end-to-end delivery.

@rsen75

Hi, I'm Senthil, a developer with 15+ years of experience specializing in API integration, payment gateways, shipping integrations and plugin development. I have developed numerous official payment plugins for payment gateway providers like ForgingBlock, UniPayment, ForumPay, DixiPay and Cashfree. Feel free to check my profile for more details on my experience: https://www.freelancer.com/u/rsen75 Thanks Senthil

@TechizeBuilder

Hi munnavyas, I came across your project "Plug-and-Play Payment Processing API" and I'm confident I can help you with it. About Me: I'm a agency owner with over 8+ years of experience in Node.js, API Development, Java. , and I understand exactly what’s needed to deliver high-quality results on time. Why Choose Me? - ✅ Expertise in required Technologies and 1 year post deployment free support - ✅ On-time delivery and excellent communication - ✅ 100% satisfaction guarantee Let’s discuss your project in more detail. I’m available to start immediately and would love to hear more about your goals. Looking forward to working with you! Best regards, Deepak

@letscms

Hello Sir, I have read your requirements carefully. I am confident i can create Payment Processing Api in Nodejs/ Python(flask)/ Laravel. I am a full stack developer and 8+ years of experience in Nodejs, PHP, Python. I can handle entire process end to end quickly and securely. regards & thanks Jitendra Kumar Full Stack Developer

@kuafu

Hi there, I'm Ryan, and this "Plug-and-Play Payment Processing API" project immediately caught my eye! With 18 years of experience in software development, including extensive work in FinTech, I'm confident I can deliver a robust and reliable solution that meets your exact requirements. I've built similar payment processing modules before, incorporating credit/debit cards, e-wallets, bank transfers, and AEPS, all with multi-currency support. I understand the importance of well-structured, documented code for future extensibility and compliance audits, and I'm proficient in Node.js, Java, and Python, ensuring clean and maintainable code regardless of the language choice. My bid includes everything you've specified: full source code, documented API endpoints with examples, database schema/migrations, a detailed integration guide, Postman/Swagger collection for testing, and comprehensive unit/integration tests covering various flows. I'll also provide a commercial-use license granting you full modification and deployment rights. I'm eager to discuss your project further and demonstrate how my expertise can help you create a secure and efficient payment processing system. Let's connect!

@NEHABHAT92

With a robust professional background, boasting 9+ years in web and mobile development, I'm Neha, the perfect candidate for your plug-and-play payment processing API. My expertise spans across Node.js, Java, Python and more; ensuring a clean, well-documented stack, tailor-made to suit your FinTech needs. From creating sample requests and responses to comprehensive database schemas, and migration scripts - I have you covered. I will also provide detailed step-by-step integration and deployment guidelines for your convenience. Apart from delivering top-notch source codes and APIs, I pride myself in my post-deployment commitment. Hence, your project will include unit and integration tests that demonstrate card, wallet, bank transfer and AEPS flows across at least two currencies. Plus, being a website and mobile app development expert at heart, the deliverables will be accompanied with a Postman or Swagger collection for quick testing - guaranteed to save you time! Not to mention the free 3 month post-project support that seals our deal. Adding an additional benefit, my services come at an effective cost without compromising on quality. Time is of essence; hence my services will ensure timely delivery leaving no stones unturned while adhering to compliance standards. Looking forward to bringing your ideas to reality!

@hamzakhattabi

Hey Sir, I am a Backend Systems Architect with over 5 years of experience. I understand you need robust backend development integrating Java, Node.js, and robust database design for your API. I will architect a scalable and efficient solution, ensuring seamless payment processing and secure REST API endpoints. My expertise in software architecture and database design, combined with Node.js and Java, will deliver a high-performance system tailored to your needs. I'm confident I can deliver this project efficiently. Regards,

@hjdsolution

Hello sir, I am having 13+ years of working experience in (full stack developer) Java, spring, spring boot, spring security, angulr, docker etc and have developed many microservices I am interested in this project please refer my profile for more information Please contact me here if requirements are open Best Regards,

@arshig8

Hello, I am a highly skilled full-stack developer and digital solution architect with over 4 years of experience transforming ideas into powerful, scalable, and business-focused web and mobile applications. I specialize in building performance-driven, user-friendly products that not only look premium but also deliver measurable results. My development approach combines clean, maintainable code with modern UI/UX principles, ensuring every project is fast, secure, responsive, and optimized for real-world growth. My technical expertise includes: Frontend & Backend: PHP, Laravel, MERN Stack CMS & E-commerce: WordPress, Shopify, Magento Mobile Apps: Flutter (Android & iOS) Other Core Skills: API development, database design, payment integrations, automation, and cloud deployment From corporate websites and e-commerce systems to fully custom platforms and mobile apps, I deliver end-to-end solutions that are stable, scalable, and aligned with business goals. I work with a strategic mindset—spanning requirements analysis and system architecture through development, testing, deployment, and long-term support. My focus is always on quality, clarity, and delivering outstanding value. If you're looking for a developer who understands both technology and business and can bring your vision to life with precision, creativity, and reliability, I am here to help. Let’s build something exceptional together. Best regards, Arshi.g

@otusonellp

With over a decade of experience at OTUSONE, I have had the privilege of working on numerous projects similar to your plug-and-play payment processing API. Not only do I possess a comprehensive understanding of prominent eWallets and bank transfer integrations, but my expertise in Node.js, Java, and database design aligns perfectly with your requirements. Given that you need clean code that can be easily extended and audited for compliance, my skills will ensure that every component of the API is well-structured and documented. In addition to supplying full source code, my team and I will provide you with ready-to-use API endpoints and request/response samples so the integration process is as seamless as possible. We include detailed step-by-step integration and deployment guides, combined with postman and swagger collection for quick testing. Moreover, my commitment to excellence and client satisfaction guarantees that all our projects are completed on time without sacrificing quality. As previous clients can attest, OTUSONE is renowned for its innovative, scalable solutions and reliable support. Choose us to create the perfect payment-processing module for your company that not only meets but exceeds your expectations. Look forward to hearing from you soon!

@NareshJoshiTech

Hello! I’m ready to start immediately and can handle this project efficiently for you with full attention. You can review my portfolio here: https://www.freelancer.in/u/NareshJoshiTech I’d really appreciate the chance to discuss your project in detail and explore how we can create something great together. Looking forward to hearing from you. Warm regards, Naresh Joshi

@rainbowarts

Hi there, I’m very interested in building your source-available payment-processing module. I have experience developing secure, scalable payment systems with REST-style APIs, multi-currency support, and multiple payment rails (cards, e-wallets, bank transfers, AEPS). I can deliver: - Full source code in Node.js, Java, or Python, with clear, maintainable structure - Ready-to-use API endpoints with request/response examples - Database schema and migration scripts - Step-by-step integration and deployment guide - Postman / Swagger collection for easy testing - Unit and integration tests covering card, wallet, bank transfer, and AEPS flows across multiple currencies - Licensing terms ensuring full rights to modify and deploy commercially I’ll ensure the code is well-documented, extensible, and audit-ready for compliance. Once the sandbox demonstration is approved, I can integrate live payment gateway credentials for final testing. Looking forward to helping you bring this module into your FinTech stack.

@duncank52

Hi there, I’ve handled backend / API builds like "Plug-and-Play Payment Processing API" where the goal is a clean result that just works without needing fixes later. Here’s how I’d approach it: With Java, Python, Software Architecture in your stack, I’ll keep the structure lightweight, predictable and easy to maintain. • Keep the database layer simple and consistent so queries stay fast and debugging is painless. • Build endpoints in a tidy, predictable way so behaviour is easy to test and reason about. If you prefer, we can begin with a small sample so you can validate the direction first. If this aligns with what you have in mind, I can move quickly and keep progress clear and predictable. Best regards, Duncan.

@rajmalviyamalviy

With Beta IT Solution, you're choosing a team with over 7 years of unwavering commitment to delivering top-tier API development solutions. Our skills in Java, Node.js and Software Architecture harmonize well with the preferences you've mentioned. As a result, we can provide you with clean, well-documented code ready for integration into your existing FinTech stack. One of the biggest boons in choosing us is our comprehensive understanding and experience in dealing with various payment methods including credit & debit cards, e-wallets, AEPS rails and bank transfers. Not only are our solutions reliable and secure, but they've been tried and tested on multiple projects across different currencies as well. On top of robustly functional codebase, we emphasize on transparent communication, timely deliveries and long-term support. That's why our work doesn't end at deploying your APIs; we also provide a step-by-step integration and deployment guide along with postman or swagger collections for quick testing. In short, with Beta IT Solution, you're getting more than a vendor; you're investing in a partner who's invested in your project's success.

@Ekakshnex2025

Hi there, I fully understand your need for a complete, source-available payment processing module with cards, e-wallets, bank transfers, and AEPS support. With 10+ years in FinTech API development at Ekakshnex Pvt Ltd, I'll deliver a production-ready, multi-currency payment stack. We can deliver: • Full source code (Node.js/Python/Java) with REST APIs • Cards, e-wallets, bank transfers, AEPS endpoints • Multi-currency support + database schema/migrations • Postman/Swagger collection + unit/integration tests • Integration/deployment guide + commercial license • Sandbox demo across 2+ currencies To proceed: • Preferred stack (Node.js/Python/Java)? • Specific gateways/e-wallets required? • Timeline for sandbox demo? Chat open — ready to build your payment module. Regards, Ekakshnex Pvt Ltd

@bonifacedn

Good afternoon , How are you? I hope this proposal finds you well. I have checked your project (Plug-and-Play Payment Processing API), which lies in the field of my certification & experience. This is to inform you that I have KEENLY gone through your project description, CLEARLY understood all the project requirements as instructed in your project proposal and this is to let you know that I will perfectly deliver as desired. Being in possession of all stated required skills like; Software Architecture, Payment Processing, REST API, Python, Node.js, API Development, Java and Database Design:, as this is my field of professional specialization having completed all certifications and developed adequate experience in the respective field, I hereby humbly request you to consider my bid for professional, quality and affordable services that meet all your requirements. I always guarantee timely delivery and unlimited revisions where necessary hence you are assured of utmost satisfaction when working with me. Please send me a message so that we can discuss more and seal the project. WELCOME.

@ssumitkumar7800

As an experienced API developer, I have spent years designing and implementing large scale, well-documented projects which makes me a perfect match. Not only am I proficient with Node.js, Java, and Python, but I'm also an expert in various other well-grounded stacks. This gives me the flexibility to adapt to your environment seamlessly while delivering the same level of quality and efficiency. In terms of what I can bring to your project, my work is always grounded in meticulousness. Beyond solidifying your payment-processing requirements, I'll deliver clean, well-structured code which will be easily integrated with your existing FinTech stack while not compromising on scalability and maintainability. Additionally, my database and testing skills will fit snugly into this endeavor by providing you with comprehensive documentation and robust error handling. Moreover, throughout my career, compliance has been non-negotiable in any task I undertake. This perspective is well-aligned with the fact that your codebase will be further extended in-house and audited for quality. Rest assured; I will engage stringent testing methodologies including unit and integration tests so that it's not only ready for immediate integration but also for future updates. By choosing me, you're opting for reliable codes that truly harmonize with your business needs while anticipating room for growth.

@TaskSyncBPO

I’m confident my experience aligns perfectly with your project’s needs. You require a clean, professional, and user-friendly payment-processing module that seamlessly integrates into your FinTech stack via REST-style APIs, supporting multiple currencies and multiple payment rails including AEPS. I offer expertise in developing well-structured, documented, and automated solutions in Node.js and Python. Despite being new to this marketplace, I offer substantial experience supported by a portfolio of work completed off site, including API design, database schema creation, and comprehensive testing. I’d love the chance to discuss your project in more detail! Regards, Eugene Herbst

@kishan1432r

Hello, I have 4+ years of hands-on experience building scalable, secure FinTech systems and payment modules using Java/Spring Boot, working across cards, UPI, AEPS, wallets, and bank-transfer rails. I fully understand transaction lifecycles, settlement flows, reconciliation, compliance, and how payment infrastructure scales in production. I can deliver a complete, source-available payment-processing module that fits directly into your existing stack through clean REST APIs. The module will support credit/debit cards, e-wallets, bank transfers, and AEPS, all with multi-currency handling and a gateway-agnostic architecture so you can plug in new providers easily. The codebase will be fully documented, extendable, audit-friendly, and built using proven FinTech patterns. Plan: • Finalize requirements + API contract • Build core payment engine (initiate → authorize → capture → refund) • Integrate card, wallet, AEPS, and bank modules • Add security (HMAC, masking, logging, idempotency) • Provide full documentation + handover Before starting, I need clarification: – Have you already selected payment gateways or do you prefer provider-agnostic integration? – Do you want redirect-based or direct API/tokenized card flows? – Which currencies and AEPS aggregator/device support are required? I’m confident I can deliver a robust, extensible module that your team can rely on and enhance over time. Looking forward to collaborating.