MERN Stack Developer for WhatsApp API Integration -- 2
Budget: ₹750 – ₹1,250 INR
Job Title: Full-Stack Developer (MERN + SQL) – Meta WhatsApp API Integration
Job Description:
We are seeking a highly skilled Full-Stack Developer with experience in Meta's WhatsApp Business API to help implement the Embedded Sign-Up flow and Payment Verification process. The ideal candidate will also have strong knowledge of the MERN stack (MongoDB, Express.js, React, Node.js) and SQL for backend integration and data handling.
Responsibilities:
Implement Meta's WhatsApp Business API Embedded Sign-Up within our platform.
Integrate Meta's payment verification processes.
Build and manage backend services using Node.js, Express, and both MongoDB and SQL databases.
Develop and maintain frontend components using React.js.
Ensure secure handling of API tokens, callbacks, and onboarding workflows.
Collaborate with our team to integrate business logic and user flows.
Debug, troubleshoot, and optimize API-related issues.
Requirements:
Strong experience with Meta (Facebook) APIs, particularly WhatsApp Business Embedded Sign-Up.
Proficiency with MongoDB, Express.js, React, Node.js (MERN stack).
Solid understanding of SQL and ability to work with relational databases.
Hands-on experience with OAuth flows, webhooks, and third-party API integration.
Familiarity with Facebook Business Manager, WABA setup, and phone number onboarding.
Strong debugging and problem-solving skills.
Nice to Have:
Experience with Meta’s payment verification system.
Familiarity with cloud deployment (AWS, GCP, etc.).
Knowledge of API security best practices.
Job Type: Freelance / Contract
Location: Remote
Start Date: Immediate
Duration: Short-term with potential for extension based on performanc
Job Description:
We are seeking a highly skilled Full-Stack Developer with experience in Meta's WhatsApp Business API to help implement the Embedded Sign-Up flow and Payment Verification process. The ideal candidate will also have strong knowledge of the MERN stack (MongoDB, Express.js, React, Node.js) and SQL for backend integration and data handling.
Responsibilities:
Implement Meta's WhatsApp Business API Embedded Sign-Up within our platform.
Integrate Meta's payment verification processes.
Build and manage backend services using Node.js, Express, and both MongoDB and SQL databases.
Develop and maintain frontend components using React.js.
Ensure secure handling of API tokens, callbacks, and onboarding workflows.
Collaborate with our team to integrate business logic and user flows.
Debug, troubleshoot, and optimize API-related issues.
Requirements:
Strong experience with Meta (Facebook) APIs, particularly WhatsApp Business Embedded Sign-Up.
Proficiency with MongoDB, Express.js, React, Node.js (MERN stack).
Solid understanding of SQL and ability to work with relational databases.
Hands-on experience with OAuth flows, webhooks, and third-party API integration.
Familiarity with Facebook Business Manager, WABA setup, and phone number onboarding.
Strong debugging and problem-solving skills.
Nice to Have:
Experience with Meta’s payment verification system.
Familiarity with cloud deployment (AWS, GCP, etc.).
Knowledge of API security best practices.
Job Type: Freelance / Contract
Location: Remote
Start Date: Immediate
Duration: Short-term with potential for extension based on performanc