Backend Developer (On-site Goa)

We are seeking a skilled Backend Developer to take full ownership of designing and managing the backend architecture for a scalable web / mobile application. This role demands expertise with Node.js, Firebase, and MongoDB, and focuses on building reliable, high-performance backend solutions for user-centric products.

Responsibilities :

• Own the entire backend architecture for a scalable app, from planning to deployment.
• Develop user authentication and authorization (JWT, OTP-based login, session management).
• Implement logic, user discovery algorithms, preference-based filters.
• Build chat and messaging system with Firebase for real-time messaging, delivery / read receipts.
• Integrate Firebase Cloud Messaging (FCM) for push notifications (iOS + Android).
• Design and manage MongoDB schema optimized for high-performance matchmaking and chat use cases.
• Ensure secure, tokenized API access using industry best practices ( HTTPS, role-based access).
• Handle media uploads (e.g., user profile images, chat media) securely via cloud storage (e.g., Firebase, AWS S3).
• Implement analytics hooks for key user actions and behavior tracking (events, funnels).
• Build admin APIs for user moderation, reporting, and flagging systems.
• Monitor and maintain API performance, database health, error logs, and uptime metrics.
• Collaborate with DevOps to set up CI / CD, monitoring, and auto-scaling backend infrastructure (e.g., Docker, PM2, or cloud functions).
• Manage environment configurations (dev / staging / production) securely with secrets handling.
• Build fallback systems to gracefully handle network failure, retries, message queueing if needed.
• Write clean, modular, and testable code with unit / integration tests for critical backend logic.
• Communicate and document API contracts clearly for frontend consumption (Postman).

Preferred Qualifications :