Serhii S.

Payment Systems Integration

141 4
5.0
2 510
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Integration of LiqPay payment system for WIX website
114 USD
367
Integration of LiqPay payment system for WIX website
Payment Systems Integration
Project description: A complete online payment cycle has been implemented through the LiqPay.ua payment system with the ability to process orders, track transactions, and a user-friendly administrative panel for managing payments. Main features:…
Ruslan T.

System & Network Administration · Web Programming

154 1
5.0
2 070
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My freelance web developer website has a portfolio of projects that I have developed over the past 17 years both in collaboration with web studios and for private clients, as well as several personal projects. Most of these sites were developed using CMS Joomla, CMS WordPress, CMS Drupal, CMS Bitrix, self-written website engines. The bulk of the projects contain custom functions for the implementation of the peculiarities of the website. In addition to many created sites in my portfolio, I have also developed various calculators, complex feedback forms, multi-level menu, slider images,…
Payment Systems for the Site
100 USD
1 286
Payment Systems for the Site
Payment Systems Integration
Do not miss your audience: connect online payment on the site or in the application and get money from buyers in various ways
Vitalii Shutenko

Web Programming · Payment Systems Integration

591 6
1 056
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Hi! My name is Vitaliy, and I’m an experienced Full-Stack Developer specializing in Laravel, Symfony, and WordPress/WooCommerce. For over 14 years, I’ve been helping businesses build, enhance, and scale web projects of any complexity — from online stores to advanced CRM systems and custom integrations. What I offer:Development of online stores (WooCommerce, Laravel, Symfony)Integration with CRM, ERP systems, payment gateways, and third-party APIsSpeed and performance optimization (PHP, MySQL, Redis, server configuration)Plugin, module, and theme development & customizationSite migration and…
Valentin Solomko

AI & Machine Learning · Payment Systems Integration

1 0
370
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ABOUT ME Senior Software Engineer / Tech Lead, 20+ years of experience. I work with Go, Java, Groovy, Perl. I build backend systems, AI pipelines and automation — fast, thanks to AI-assisted development (Claude Code, Cursor, Aider). WHAT I DO ⚙️ Go / Backend Automation CRM, API, email service integrations. Daemons, CLI tools, microservices. PostgreSQL, MongoDB, Redis. AI Pipelines & Agents Data collection → LLM processing → delivery (Telegram, email, API). OpenAI / Claude API integration. Vibe coding: from idea to MVP. Telegram Bots Rule-based and AI chatbots, bots for e-commerce, crypto,…
Serhii Soloviov

Online Stores & E-commerce · Payment Systems Integration

24 0
5.0
360
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Fixing even the things that others couldn’t. OpenCart / WooCommerce / Horoshop I work with complex technical tasks in eCommerce. I optimize speed, configure integrations, fix errors, restore Checkout flows, and develop custom modules. I work cleanly, predictably, and without unnecessary complications. What I do Website speed optimization (PageSpeed, LCP, TBT) Checkout and payment integration (WooCommerce / Autopay / InPost) Custom module development for OpenCart API, payment systems, and delivery integrations Fixing issues after previous developers Analytics setup (GA4, GTM, eCommerce…
WooCommerce cart setup + InPost and Autopay integration
173
WooCommerce cart setup + InPost and Autopay integration
Payment Systems Integration
The client reached out with a problem regarding the incorrect functioning of the cart and unstable integration of delivery and online payment modules. Some orders were not going through, and purchase notifications were not reaching either the clients…