Job Title

Job Title:Senior Backend Engineer Experience Required:5-10 Years Location:Mumbai Employment Type:Full-Time Department:Engineering - Backend DevelopmentAbout the Role We are seeking an experienced Senior Backend Engineer to join our team. The ideal candidate will have strong expertise in building scalable, high-performance backend systems with Node.js and cloud technologies. You will be responsible for developing and maintaining our cloud-based services platform that serves millions of users.Key Responsibilities Design, develop, and maintain robust RESTful APIs and WebSocket services for real-time communication Build and optimize scalable microservices architecture using Node.js and Express.js Implement and manage cloud infrastructure on Azure and Google Cloud Platform Design and optimize database schemas and queries for MongoDB Develop real-time features using WebSocket protocols and SocketCluster Implement secure authentication and authorization mechanisms (JWT, OAuth) Build and maintain background job processing systems using message queues Integrate with third-party APIs and services Write clean, maintainable, and well-documented code Implement monitoring, logging, and alerting solutions Participate in code reviews and maintain code quality standards Mentor junior developers and contribute to technical documentation Collaborate with frontend developers, DevOps, and product teamsRequired Technical Skills Core Technologies (Must Have) Node.js(v18+): 5+ years of production experience with Node.js backend development Express.js : Strong expertise in building RESTful APIs with Express.js framework MongoDB : 3+ years experience with MongoDB, Mongoose ORM, schema design, and query optimization Redis : Experience with caching strategies, session management, and distributed locks using Redis JavaScript/ES6+ : Advanced proficiency in modern JavaScript, asynchronous programming, and design patternsCloud & Infrastructure Azure Services : Hands-on experience with Azure Event Hubs, Azure DevOps, and Azure deployment Google Cloud Platform (GCP) : Experience with GCP Compute Engine, Cloud Storage, and Pub/Sub Docker : Containerization experience and Docker deployment strategies CI/CD : Experience with Azure Pipelines and automated deployment workflowsReal-time & Messaging WebSocket : Strong understanding of WebSocket protocol and real-time communication patterns Message Queues : Experience with AMQP, RabbitMQ, or similar message broker systems Background Jobs : Experience with job scheduling systems (Agenda, Bull, or similar)Authentication & Security JWT/OAuth : Strong understanding of token-based authentication and authorization Security Best Practices : Knowledge of OWASP Top 10, input validation, rate limiting, and API security Encryption : Experience with bcrypt, password hashing, and data encryptionAPI Development & Documentation RESTful API Design : Expertise in designing scalable and maintainable REST APIs API Documentation : Experience with Swagger/OpenAPI specification API Versioning : Understanding of API versioning strategiesDevelopment Tools & Practices Git : Proficient with Git workflows, branching strategies, and code collaboration Testing : Experience with Jest, unit testing, integration testing, and test-driven development Code Quality : Familiarity with ESLint, Prettier, and code review processes Monitoring : Experience with Prometheus, application monitoring, and observability