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Rajnish Kumar

@rajnishkumar5

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Full Stack Developer at Dynamics Square who integrated Business Central with Shopify for real-time ERP storefront data.

India

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At Dynamics Square, I led a Microsoft Business Central and Shopify integration that synced products, inventory, orders, and customer data between the ERP and storefront in real time. I also reduced API latency by 35% through caching and query optimizations.

At Aspire Innovations Pvt. Ltd, I designed Laravel REST APIs and built admin panels, invoice management, and real-time notifications. I’m currently developing a news editor platform with Node.js, Express.js, and MongoDB, including article workflows and role-based access control.

Experience

Work history, roles, and key accomplishments

Full Stack Developer

Dynamics Square

Built and maintained secure RESTful APIs with JWT Authentication, developed and customized Shopify themes, and led Microsoft Business Central integration with Shopify. Implemented data caching and query optimizations, reducing API latency by 35%.

REST APIs JWT Authentication React Next.js Shopify Liquid HTML CSS JavaScript Microsoft Business Central ERP Integration MVC Architecture Generative AI Data Caching Query Optimization

Full Stack Developer (PHP Laravel)

Aspire Innovations Pvt. Ltd

Designed scalable Laravel REST APIs with OAuth2 and JWT Authentication, built admin panels and invoice management systems, and integrated third-party APIs including Razorpay, Twilio, and Firebase. Contributed to React.js frontend components for client-facing dashboards.