Full Stack Developer (.Net/React)

Location: Remote

Employment Type: Full-Time | Permanent

Experience: 3–6 Years

Focus: API Development, CRM Integrations & Full Stack Development

Role Overview

We are looking for a hands-on Full Stack Developer with strong experience in API development and system integrations to work with our client. While this is a full-stack development position, a significant portion of the work involves connecting CRM platforms with external vendor systems and third-party applications , ensuring reliable data exchange and seamless functionality across platforms.

The ideal candidate should be comfortable developing APIs, integrating independent systems, troubleshooting integration issues, and contributing to frontend, backend, and web application development.

Experience integrating any CRM platform, such as Salesforce, Microsoft Dynamics 365, HubSpot, Zoho, or similar, is relevant. Dynamics 365 experience is preferred but not mandatory.

Key Responsibilities

• Design, develop, maintain, and troubleshoot RESTful APIs and system integrations.
• Integrate CRM platforms with external vendor systems, third-party applications, and business platforms.
• Build and maintain bi-directional integrations , enabling data and functionality to flow between applications.
• Implement API authentication, authorization, data mapping, transformation, synchronization, and error handling.
• Work with webhooks, asynchronous processing, and integration workflows where required.
• Troubleshoot API failures, data inconsistencies, connectivity issues, and integration performance.
• Develop and maintain backend services and business logic using .NET/C# or relevant backend technologies.
• Contribute to frontend and web application development using React, Next.js, Angular, or similar frameworks.
• Work with SQL databases, cloud services, and existing enterprise applications.
• Collaborate with internal teams and external vendors to understand integration requirements and deliver reliable solutions.
• Support testing, deployment, documentation, and ongoing maintenance of integrations and applications.

Required Skills & Experience

• 3–6 years of professional software development experience.
• Strong hands-on experience developing and integrating REST APIs.
• Practical experience connecting different applications, enterprise systems, or external vendor platforms through APIs.
• Experience with CRM/ERP integrations or similar enterprise application integrations.
• Understanding of bi-directional data exchange, data mapping, synchronization, authentication, and integration error handling.
• Backend development experience, preferably with C#, ASP.NET Core, and .NET Web API .
• Full-stack development experience, including frontend frameworks such as React, Next.js
• Experience working with SQL databases and web applications.
• Ability to independently investigate, develop, test, and troubleshoot API integrations.