Qosina Corp.
Qosina Corp. is hiring: Senior, Backend Web Developer in Ronkonkoma
Qosina Corp., Ronkonkoma, NY, US, 11779
Job Description
Job Description
Title: Senior Backend Web Developer
FLSA: Exempt
Reports To: Director of Marketing
Position Summary: We are seeking a Senior Backend Web Developer with 7+ years of experience in .NET, C#, and enterprise system integration to support and enhance DynamicWeb-based eCommerce websites while leading the transition to WooCommerce as our long-term eCommerce 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)- Maintain, troubleshoot, and enhance existing DynamicWeb-based eCommerce websites.
- Work with DynamicWeb’s backend (ASP.NET, C#) and Razor templates to develop and optimize eCommerce functionality.
- Support ERP (D365 F&O) and CRM (D365 CE) integrations for order processing, inventory management, and customer accounts.
- Optimize SQL Server performance and develop custom stored procedures as needed.
- Ensure security, compliance, and performance of all backend systems.
- Architect and develop custom APIs, Webhooks, and integrations to facilitate the transition from DynamicWeb to WooCommerce.
- Build and maintain WooCommerce backend functionality, including:
- Custom plugin development using PHP, MySQL, and WooCommerce APIs.
- Performance optimizations for high-traffic eCommerce environments.
- Integration of third-party services (payment gateways, shipping providers, and tax calculation tools).
- Ensure smooth migration of data (products, orders, customers) from DynamicWeb to WooCommerce.
- Design and develop APIs and workflows to synchronize customer data, orders, invoices, and inventory between D365 F&O, D365 CE, and WooCommerce.
- Implement real-time order management, inventory updates, and financial reporting integrations.
- Work with Power Automate, Logic Apps, and Azure Functions to optimize data flow.
- Troubleshoot and enhance existing ERP and CRM integrations.
- Implement CI/CD pipelines, automated testing, and containerized deployments (Docker, Kubernetes).
- Deploy and maintain backend applications on Azure (App Services, Functions, API Management, Service Bus, SQL Databases).
Ensure data security, compliance, and scalability within cloud
Education/Technical Certifications:
- Experience with headless eCommerce and API-driven storefronts.
- Knowledge of GraphQL, gRPC, or WebSockets for real-time data exchanges.
- Familiarity with serverless architectures (Azure Functions, AWS Lambda).
- Understanding of DevOps practices, CI/CD, and cloud security best practices.
Experience:
- 7+ years of experience in backend web development using .NET (Core/Framework) and C#.
- Experience working with DynamicWeb eCommerce platform and/or its backend architecture (ASP.NET, Razor, C#).
- Proficiency in WooCommerce backend development (PHP, MySQL, WordPress APIs, and WooCommerce customization).
- Strong knowledge of RESTful API development, Webhooks, and microservices architecture.
- Experience integrating D365 F&O and D365 CE with eCommerce platforms.
- Expertise in Azure cloud services (Logic Apps, Function Apps, API Management, Azure SQL, Service Bus, etc.).
- Advanced proficiency in SQL Server, Entity Framework, and relational database design.
- Experience with OAuth, JWT, and API authentication mechanisms.
- Strong problem-solving and debugging skills with a focus on scalable architecture.
- Excellent communication and collaboration skills to work effectively with cross-functional teams.
Skillsets:
- Organizational skills
- Administrative skills
- Computer skills
- Leadership skills
- Communication Skills
- Collaboration skills
- Independent skills
- Analytica skills