Jr. & Sr. Product Developer

Job DescriptionWe are hiring a Backend Developer with 3-5 years of hands-on experience in Node.js andMongoDB to design, optimize, and maintain high-performance backend systems. You willwork on large-scale data processing, external integrations, and scalable architectures while ensuring best coding practices and efficient database design.

Key Responsibilities
Backend Development & Optimization1. Develop and maintain RESTful/GraphQL APIs using Node.js, adhering to best codingpractices and reusable code structures.2. Write optimized MongoDB queries for collections with crores of records, ensuringefficient data retrieval and storage.3. Design MongoDB collections, implement indexing strategies, and optimize replicasets for performance and reliability.4. Scalability & Performance5. Implement horizontal and vertical scaling strategies to handle growing data andtraffic.6. Optimize database performance through indexing, aggregation pipelines, and querytuning.7. External Integrations & Debugging8. Integrate third-party APIs (payment gateways, analytics tools, etc.) and SDKsseamlessly into backend systems.9. Debug and resolve complex issues in production environments with a systematic,data-driven approach.AWS & Cloud ServicesWork with AWS services like Lambda (serverless), SQS (message queuing), S3 (storage),and EC2 (compute) to build resilient and scalable solutions.Collaboration & Best PracticesCollaborate with frontend teams to ensure smooth API integrations and data flow.Document code, write unit/integration tests, and enforce coding standards.

Mandatory Requirements
3-5 years of professional experience in Node.js and MongoDB.Expertise in:1. MongoDB: Collection design, indexing, aggregation pipelines, replica sets, andsharding.2. Node.js: Asynchronous programming, middleware, and API development(Express.js/Fastify).3. Query Optimization: Writing efficient queries for large datasets (crores of records).4. Strong debugging skills and experience in resolving production issues.5. Hands-on experience with external integrations (APIs, SDKs, webhooks).6. Knowledge of horizontal/vertical scaling techniques and performance tuning.7. Familiarity with AWS services (Lambda, SQS, S3, EC2).

Preferred Skills8. Experience with microservices architecture.9. Knowledge of CI/CD pipelines (GitLab CI, Jenkins).10. Understanding of Docker, Kubernetes, or serverless frameworks.11. Exposure to monitoring tools like Prometheus, Grafana, or New Relic.