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Qosina Corp. Logo

Back End Web Developer

Qosina Corp.

Salary not specified
Nov 10, 2025
Ronkonkoma, NY, US
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Enhance DynamicWeb-based e-commerce websites and support the transition to a new e-commerce platform (Magento/Adobe Commerce, WooCommerce, etc.) while integrating with Microsoft Dynamics 365 Finance & Operations and Customer Engagement.

Requirements

  • 4+ years of experience in backend web development, with strong knowledge of .NET Framework 4+, ASP.NET Web Forms and C-Sharp.
  • Experience working with SQL and relational database design.
  • Familiarity with WordPress + WooCommerce development, including PHP, MySQL, WooCommerce, Magento & WP REST APIs.
  • Understanding of RESTful APIs, Webhooks, and backend integrations.
  • Experience with git version control and associated workflows.
  • Experience with Azure cloud services (App Services, Functions, Logic Apps, SQL).
  • Knowledge of functional testing and test automation.

Responsibilities

  • Assist in maintaining, troubleshooting, and enhancing existing DynamicWeb-based e-commerce websites.
  • Develop and optimize backend functionality using ASP.NET Web Forms, C-Sharp, and Razor templates.
  • Support integrations with ERP (D365 F&O) and CRM (D365 CE) for order processing, inventory, and customer account workflows.
  • Develop custom plugins, integrations, and APIs using PHP, MySQL, and eCommerce APIs.
  • Implement third-party integrations (payment gateways, shipping providers, tax tools).
  • Assist in designing and maintaining workflows and APIs to sync data between D365 F&O, D365 CE, and eCommerce platform.
  • Support CI/CD pipelines, automated testing, and deployments.

Other

  • Strong problem-solving skills and ability to work collaboratively.