Back End Web Developer

Job Title: Backend Web Developer

Location: Ronkonkoma, NY

Job Type: Full-Time

Reports to: Web Developer Manager

About the Role

We are seeking a Backend Web Developer with 4 years of experience in .NET, C#, and enterprise system integration to support and enhance DynamicWeb-based e-commerce websites while supporting and executing on the transition to a new Commerce site (Magento/Adobe Commerce, WooCommerce, etc.) as our long-term e-commerce solution.

The ideal candidate has expertise in backend architecture, API development, cloud services (Azure), and integrations with Microsoft Dynamics 365 Finance & Operations (D365 F&O) and Customer Engagement (D365 CE).

Key Responsibilities

Support & Enhance DynamicWeb Websites (Current State)

• Assist in maintaining, troubleshooting, and enhancing existing DynamicWeb-based e-commerce websites.

• Develop and optimize backend functionality using ASP.NET Web Forms, C#, and Razor templates.

• Support integrations with ERP (D365 F&O) and CRM (D365 CE) for order processing, inventory, and customer account workflows.

• Ensure security, reliability, and performance across backend systems.

Contribute to Transition to new Commerce Platform (Future State)

• Collaborate with the other developers to build and maintain eCommerce backend functionality.

• Develop custom plugins, integrations, and APIs using PHP, MySQL, and eCommerce APIs.

• Implement third-party integrations (payment gateways, shipping providers, tax tools).

• Support data migration processes for products, orders, and customers.

ERP & CRM Integration

• Assist in designing and maintaining workflows and APIs to sync data between D365 F&O, D365 CE, and eCommerce platform.

• Implement and support integrations for order management, inventory, and reporting.

• Work with Power Automate, Logic Apps, and Azure Functions.

• Troubleshoot existing ERP/CRM integrations as needed.

Cloud & DevOps

• Support CI/CD pipelines, automated testing, and deployments.

• Help deploy and maintain backend applications in Azure (App Services, Functions, SQL Databases, Service Bus).

• Contribute to maintaining secure, scalable, and compliant cloud environments.

Qualifications & Skills

• 4 years of experience in backend web development, with strong knowledge of .NET Framework 4 , ASP.NET Web Forms and C#.

• 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.

• Exposure to ERP/CRM integrations (D365 preferred but not required).

• Experience with Azure cloud services (App Services, Functions, Logic Apps, SQL).

• Knowledge of functional testing and test automation.

• Modern DevOps practices like Docker containerization, k8s, CI/CD and observability.

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