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I’m building a small-scale payment gateway that lets shoppers on my [login to view URL] e-commerce site pay with TRX, Ethereum, BTC, XMR, and LTC. The focus is on a clean, dependable setup rather than heavy, enterprise-level security; standard encryption, confirmation checks, and basic anti-fraud routines will be enough for this first release. The gateway must handle both one-time and recurring payments. I’ll need simple merchant controls—think invoice generation, transaction status, and refund trigger—plus a lightweight REST or GraphQL API so my front-end can display QR codes, wallet addresses, and live confirmation counts without page reloads. Because I’m turning this into a standalone service for my own products, the codebase should be modular: a core processing service (Node or Go preferred, but I’m open) and a ready-to-drop-in [login to view URL] component or hook set. Clean dependency management, thorough README docs, and concise comments are essential so I can extend the system later. I’ll review by running the script on testnets or small live amounts; successful confirmations and subscription renewals will mark acceptance. If you’ve built similar gateways or have code snippets demonstrating multi-coin handling, that will speed selection.
Project ID: 40744253
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165 freelancers are bidding on average $479 USD for this job

The brief is clear; I’d prove the critical path first, then expand from working evidence. For a Custom Crypto Payment Gateway Integration, the key is improving merchandising, product storytelling, CRO, and analytics without losing the premium brand feel. My approach would be to audit product discovery and PDP/PLP performance first, then improve merchandising, storytelling, CRO tests, and reporting around measurable ecommerce KPIs. Quick question: Do you already have the Stripe event and failure-handling rules defined, or should we harden those flows as part of the build? Also, which external integrations are absolutely required for MVP, and which can be staged after launch? Best, Dr. Syafiq
$500 USD in 21 days
5.8
5.8

Hi, I can have this done for you very fast, check my profiles and reviews. And lets get in contact first.
$250 USD in 3 days
5.1
5.1

Hey there! As a seasoned Full Stack Developer, specializing in API Development and Node.js, I'm confident I can deliver top-notch results for your custom crypto payment gateway. Having worked on over 200 projects successfully, including several API integrations and payment gateways, I'm well-versed with the technology stack required for this project. My focus is on crafting clean, secure, and scalable code, aligning perfectly with your need for a dependable but lightweight setup. With thorough README documentation and concise comments as my routine practice, extension and maintenance of the codebase won't pose any hassles. Moreover, my experience in building intuitive UI/UX design and high-converting landing pages could be leveraged in creating a convenient merchant control interface that'd simplifies invoice generation, transaction status check, and refund triggers. Let's connect today to discuss your project further – because together we can build something amazing that drives real results for your business!
$350 USD in 7 days
4.3
4.3

Hello, I have 10 years of experience in payment gateway integrations and blockchain technologies. I am excited to bid on your custom crypto payment gateway project. I assure a clean setup that handles both one-time and recurring payments with standard security checks. I will implement merchant controls such as invoice generation, transaction status, and refunds. The solution will include a modular codebase and a lightweight API for front-end integration. I am familiar with Node.js and Go, and will provide thorough documentation and comments. I will demonstrate successful integration through testing on testnets or small live amounts. My experience with multi-coin handling will accelerate the completion of your project. Regards, VishnuLal NB*
$750 USD in 1 day
4.3
4.3

Dear Hiring Manager, Thanks for the job posting! I am an expert in Cryptos projects as I have done a lot of such projects in industry and as a freelacer. Also, we are just done with a Flash TRC-20 token creation project just now. I have as well spent my 21 years in companies like Microsoft. This is a nice whole project which I would like added to my portfolio so very much interested in doing it :) More as you revert. Regards, Anurag.
$420 USD in 15 days
4.3
4.3

Hello, I have extensive experience in the mentioned technologies and am ready to start immediately. Let’s connect via chat to discuss the project requirements further. Thank you, Jignesh
$250 USD in 3 days
3.8
3.8

As a Full-Stack Developer with a solid command of Node.js, I have the perfect skill set to tackle your custom crypto payment gateway integration project. Over the years, I have constructed numerous secure and efficient solutions, just like what you're looking for. My wealth of experience extends from building responsive web designs and mobile applications to SaaS platforms and custom software, all designed to meet unique business needs - just as your project demands. Having worked on similar projects before, I understand the importance of an organized and modular codebase that can effortlessly integrate with various systems. My clean and maintainable coding approach combined with thorough documentation will make it a breeze for you to extend as needed in the future. Additionally, my robust hosting and cloud deployment skills ensure that the final product is scalable, dependable, and most importantly secure.
$250 USD in 1 day
3.6
3.6

Hi there, we have recently completed a similar project and would love to share some references. Your custom crypto payment gateway integration sounds right up our alley, and we would love to exceed your expectations. I understand you're looking for a clean and dependable setup that supports multiple cryptocurrencies while maintaining simplicity for merchant controls. We specialize in building efficient payment solutions that are not only user-friendly but also modular, ensuring easy future expansions. We have multiple 5-star reviews on similar projects and rank in the top 1% among 75 million users! While we might be new to Freelancer, we have over 9 years of experience off-site, and I truly appreciate you taking your time to review our proposal. I would love to discuss this project more. Kind regards, Trichelle
$550 USD in 14 days
0.0
0.0

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