Senior Software Developer - Node.js

Role : Senior Software Developer - Node.js

Experience Required : 4-6 Years

Location : Mumbai / Bengaluru

Must-Have Skills

Core Technical Expertise :

Node.js : 4+ years of production experience with Node.js (ES6+, Async / Await, Promises, Event Loop understanding)

Frameworks : Strong hands-on experience with Express.js, Fastify, or NestJS

REST API Development : Proven experience designing and implementing RESTful web services, middleware implementation

JavaScript / TypeScript : Proficient in modern JavaScript (ES6+) and TypeScript for type-safe development

Testing : Experience with testing frameworks (Jest, Mocha, Chai), unit testing, integration testing, mocking

Microservices & Deployment :

Containerization : Hands-on Docker experience for packaging and deploying Node.js applications

Microservices Architecture : Understanding of service decomposition, inter-service communication, event-driven architecture

Abstraction & Portability : Environment-agnostic design, configuration management (dotenv, config modules)

Build Tools : NPM / Yarn for dependency management, understanding of package.json

Good-to-Have Skills

Advanced Technical :

Advanced Frameworks : NestJS, Koa.js, Hapi.js

Orchestration : Kubernetes, Docker

Cloud Platforms : Alibaba, Azure, or GCP services and deployment

Message Brokers : Apache Kafka, RabbitMQ for asynchronous communication

Databases : Both SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, Cassandra)

API Gateway : Express Gateway, Kong API Gateway

Development & Operations :

CI / CD pipelines (Jenkins, GitLab CI / CD)

Monitoring & Observability (Winston, Morgan, Prometheus, New Relic)

GraphQL with Apollo Server or similar

Security best practices (Helmet.js, authentication, authorization)

Client-Facing Experience :

Experience working in service-based organizations

Adaptability to different domain requirements

Understanding of various industry standards and compliance requirements

Key Responsibilities

Develop and maintain scalable Node.js microservices for diverse client projects

Implement robust REST APIs with proper error handling and validation

Write comprehensive unit and integration tests ensuring high code quality

Design portable, efficient solutions deployable across different client environments

Collaborate with cross-functional teams and client stakeholders

Optimize application performance for high-concurrency scenarios

Implement security best practices for enterprise applications

Participate in code reviews and maintain coding standards

Support deployment and troubleshooting in client environments

Qualifications

Bachelor's degree in Computer Science, Engineering, or related technical field

4-6 years of professional Node.js development experience

Strong understanding of asynchronous programming and event-driven architecture

Excellent written and verbal communication skills

Ability to work independently and manage multiple client priorities

Adaptability to work across different domains and client requirements

Client-facing experience or willingness to interact with client teams