Budget: 10000 UAH Deadline: 7 days
Hello. I have extensive experience in website development. I am ready to help connect the payment system. What is your website built on?
Need an experienced programmer who can understand someone else's code to connect a crypto payment system
https://oxapay.com/merchant-service need to connect this system for receiving payments and for payouts called
masspay https://docs.oxapay.com/api-reference/payout/generate-payout if you have experience with similar tasks, I would be happy to collaborate with you
Budget: 10000 UAH Deadline: 7 days
Hello. I have extensive experience in website development. I am ready to help connect the payment system. What is your website built on?
Budget: 5500 UAH Deadline: 2 days
Hello. I have previously connected payment processing, including cryptocurrency merchants. I would be happy to review your website and get started on the work.
Budget: 5500 UAH Deadline: 1 day
Good afternoon - we develop frameworks on Lavarell and mobile applications on IOS and Android turnkey.
Projects:
1. Good afternoon, we are ready to fulfill your order turnkey.
We develop websites on PHP and mobile applications for IOS and Android.
We have experience in creating CRM/ERP systems.
We are ready to fulfill your order turnkey.
Good afternoon, we develop websites on Wordpress and mobile applications for IOS and Android. The total experience in development is 7 years. We are ready to fulfill your order turnkey.
1. Projects
https://berkanaplus.com.ua/ - I transferred and configured the server for this site.
2. https://leondesign.kyiv.ua/
Updates of PHP version and plugin updates.
3. https://peg.com.ua/
Development of a new module for the site for dynamic updating of product prices.
https://uvali.com.ua/
Configuration of a dedicated VPS server.
Budget: 5500 UAH Deadline: 3 days
Hello. I am ready to complete the task, I have extensive work experience.
Budget: 5500 UAH Deadline: 2 days
Hello, I recently completed a similar task for another project. I think I will be able to finish the integration of the crypto payment system by tomorrow evening.
Budget: 12000 UAH Deadline: 4 days
Hello, Yuriy! 👋
My name is Semen, I am an experienced full-stack developer specializing in payment system integration, including cryptocurrency. I will gladly help with connecting Oxapay for both payment acceptance and MassPay payouts.
🧠 My experience:
Integrated Binance Pay, CoinPayments, NOWPayments, CryptoCloud, as well as private APIs (TRC20/ERC20)
Working with PHP, Node.js, Python — I will choose the optimal stack for your site
Well-versed in foreign code: I read, document, and refactor quickly
I have experience in automating payouts (mass payout) via API with confirmation/queue/message logic
🛠️ What you will receive:
A complete integration of Oxapay into your site
A reliable masspay mechanism with logs, error handling, and confirmations
Testing in sandbox mode
Documentation for support
⏱️ Timeline:
From 2 to 4 days (depending on the structure of the site and stack)
💰 Estimated cost:
from $300, exact price after reviewing the code
Ready to start immediately after access to the repository or site files.
Looking forward to hearing from you!
Best regards, Semen
Budget: 5455 UAH Deadline: 2 days
Trust a professional with over 10 years of experience! The rate and deadlines are current! I look forward to collaboration! Experience in commercial development of online stores on CMS, business portals, and corporate websites - 11 years! +CMS: WordPress(+Woocommerce) PrestaShop/Opencart/Joomla/Bitrix/MODX/DLE/Shopify php/html/css/js/Mysql, PhotoShop/Figma Examples of work (from scratch, turnkey): https://wildandorganic.com/ https://libramoss.com https://cryptosignals.org/ https://www.alternativemedicine.com.ua/ https://silkkiss.ua/ https://nordtrade.online/ https://v12coffee.com.ua/franchise/ https://smrtalgo.com/ https://sengero.no/ https://beautybysim.no/ https://sonatagalleri.com/ https://www.emmanuel.com.ua/ https://www.onsitecomputersinc.com/ https://express-tehbud.com/ https://korostenporcelain.com.ua/ https://sladok.com.ua/ https://pricemds.com/ https://picupmedia.com/ https://www.serasar.com/ https://integrisit.com/
Budget: 5500 UAH Deadline: 3 days
Hello, I am ready to take on the work, I have experience in similar projects.
Budget: 5500 UAH Deadline: 1 day
Ready to take on the job, write to me, I will do everything with quality. I have over 14 years of work experience!
Budget: 5500 UAH Deadline: 3 days
I will complete your task immediately. Quickly and efficiently. Over 6 years of experience in programming and administration.
Budget: 5500 UAH Deadline: 2 days
I have extensive experience working with payment systems, including cryptocurrency payments.
Write to me, and we will discuss the details.
I look forward to collaborating.
We're building a regulated real estate tokenization platform that converts institutional-grade properties into ERC-3643 security tokens with built-in ONCHAINID compliance. Our platform enables fractional ownership, secondary trading, and DeFi integration—making premium real estate investment accessible to everyone. I am looking for a talented blockchain $ smart contract developer. Tech Stack: - Blockchain: Solidity (ERC-3643 with ONCHAINID) on Arbitrum One, Hardhat - Backend: Node.js/TypeScript, Express, PostgreSQL, Redis - Frontend: React/TypeScript, ethers.js/wagmi, Tailwind - Infrastructure: AWS, Docker, GitHub Actions Blockchain Developer Responsibilities: - Design and deploy ERC-3643 smart contracts with compliance logic - Implement ONCHAINID identity and KYC whitelist integration - Coordinate external security audits and optimize gas usage - Build DeFi lending integrations (staking, yield, collateralization)
We need to connect a payment system to a high-risk site. The main requirements are the acceptance of fiat funds and the withdrawal of funds in cryptocurrency. Preferably no KYC. Only those who have had similar experience. Price is negotiable.
Tech Stack - React: Responsive and dynamic front-end development - Node.js: Robust backend operations - Web3: Multi-chain cryptocurrency integration - Solidity: Smart contract development Project Objective Develop a comprehensive multi-chain staking platform for a popular gaming ecosystem, enabling seamless cryptocurrency interactions, NFT marketplace integration, and enhanced user experience across multiple EVM-compatible blockchain networks. Whitepaper We've been more than just a mobile gaming studio; we are visionaries and innovators in the gaming world. Our team is formed by mobile gaming industry talents and passionate gamers, and is dedicated to pushing the boundaries of what's possible in mobile gaming. Our expertise focuses on hybridizing genres to create something truly unique which we adapt for transitioning Web2 gaming to Web3 gaming titles. From Racing RPGs to Action Strategy games, we are constantly experimenting and blending genres to offer new gaming experiences. Our games aren't just a form of entertainment; they're immersive journeys that engage, challenge, and captivate our players. We embody our mission to not merely entertain but to transport our audience into an extraordinary universe of interactive world within Web3 gaming. - Front-End Development - Back-End Development - Landing Page Redesign - Multi-Chain Integration - NFT Marketplace - Testing & Quality Assurance - Deployment & Maintenance
What needs to be done: conduct an independent expert consultation on the implementation of multisig wallets to protect the company's treasury funds, which operates with high-volume payment processing in USDT across three networks - TRON (TRC20), BNB Smart Chain (BEP20), and Ethereum (ERC20). Requirements: (1) review available market solutions and recommend the optimal one for our profile - a single custodial platform for all three networks or a combination of separate tools for EVM and TRON; (2) propose a signature architecture (e.g., 2-of-3), key distribution among roles, thresholds for quick/large payments; (3) provide recommendations for key storage (hardware wallets, HSM) and procedures in case of key loss or compromise. For whom: the team administering the company's treasury with a high volume of crypto transactions. Success criterion: a ready recommended architecture with a clear implementation plan. Requirements: practical experience in implementing multisig, specifically with TRON (not just EVM), experience with specific solutions (Safe/Gnosis, Fireblocks, BitGo, Cobo, or native TRON multisig), preferably with cases of previous implementations.