Senior Full‑Stack eCommerce

We are looking for Senior Full‑Stack eCommerce

Developer (Shopify, Magento 2, OpenCart)

We are an IT company developing payment solutions for eCommerce. Our goal is to provide a seamless and secure checkout experience for merchants on Shopify, Magento 2, and OpenCart. We value professionalism, high-quality code, and modern technologies.

Responsibilities:
-Develop, test, and maintain custom payment plugins for Shopify, Magento 2, and OpenCart.
-Integrate the payment gateway via REST API, supporting transactions: Authorize & Capture, Refund, and Void.
-Ensure security: integrate 3D Secure (3DS), comply with PCI-DSS, and support Redirect and Hosted Payment Page models.
-Create a seamless checkout flow, mobile-responsive, supporting localized currencies and languages.
-Develop an admin panel with API key configuration, Sandbox/Live mode toggling, and order status mapping.
-Prepare documentation: installation and user guides for merchants.
-Maintain plugins post-launch: bug fixes and updates for new platform versions.
-Assist with the submission and approval process for Shopify App Store and Magento Marketplace.

Requirements:
-Experience developing on Shopify, Magento 2, and OpenCart (minimum 3 years in eCommerce).
-Strong knowledge of PHP, Ruby on Rails / Node.js, JavaScript, HTML/CSS.
-Experience working with REST API, payment integrations, 3DS, and PCI-DSS compliance.
-Experience creating custom modules/plugins and working with marketplace standards.
-Ability to test plugins on different platforms and ensure mobile responsiveness.
-English — intermediate or higher (for reading documentation and communicating with international platforms).

Nice to Have:
-Experience publishing plugins on Shopify App Store or Magento Marketplace.
-Experience working with Sandbox/Live environments of payment systems.
-Knowledge of version control systems (Git) and CI/CD practices.