Senior Node.js Engineer

eG Innovations, Inc.; Chennai District; On-site; INR 1,200,000 - 1,500,000; Full time

Job summary

eG Innovations, Inc. is seeking a Senior Node.js Engineer in Chennai, India. You will develop scalable Node.js applications emphasizing performance and reliability. Successful candidates will have 3+ years of hands-on experience, deep understanding of Node.js internals, and familiarity with monitoring tools like New Relic and Datadog. The role involves designing high-performance services, implementing best practices for observability, and troubleshooting production issues. Join us to work on advanced application performance engineering.

Qualifications

• 3+ years of hands-on Node.js development experience with frameworks like Express, Koa, or similar.
• Deep understanding of Node.js internals including event loop, async programming, and garbage collection.
• Experience debugging and profiling Node.js apps using various methods.

Responsibilities

• Design and develop scalable Node.js applications focused on performance.
• Optimize applications for efficiency and throughput.
• Implement logging and metrics best practices in Node.js services.

Skills

Node.js development experience

Understanding of Node.js internals

Debugging and profiling

Monitoring/observability tools

Database performance tuning

REST APIs and their performance implications

Tools

New Relic

Datadog

Dynatrace

OpenTelemetry

MongoDB

PostgreSQL

MySQL

Redis

Job description

Role Overview

We are looking for a hands-on coding Senior Node.js Engineer with strong backend development skills and a keen interest in application performance, monitoring, and observability. The role involves building high-performance Node.js services while contributing to advanced monitoring capabilities such as tracing, metrics, and error visibility. You will work on designing resilient, low-latency services while ensuring they are observable, debuggable, and production-ready.

Responsibilities

• Design and develop scalable Node.js applications with a focus on reliability and performance.
• Optimize applications for event loop efficiency, memory usage, and throughput.
• Implement logging, metrics, and tracing best practices within Node.js services.
• Work with APIs, databases, and message queues to build high-performance integrations.
• Troubleshoot production issues such as CPU bottlenecks, memory leaks, async/await pitfalls, and unhandled rejections.
• Collaborate with DevOps/APM teams to ensure applications are fully observable.
• Stay up to date with Node.js ecosystem updates, performance tuning techniques, and monitoring tools.

Must-Have Skills

• 3+ years of hands‑on Node.js development experience (Express, Koa, NestJS, Fastify, or similar).
• Deep understanding of Node.js internals - event loop, async programming, promises, streams, garbage collection.
• Experience with debugging and profiling Node.js apps (CPU profiling, heap dumps, async hooks).
• Familiarity with monitoring/observability tools (APM, metrics, tracing, logging) such as New Relic, Datadog, Dynatrace, or OpenTelemetry.
• Knowledge of database drivers and performance tuning (MongoDB, PostgreSQL, MySQL, Redis).
• Solid understanding of REST APIs, gRPC, or GraphQL and their performance implications.

Nice-to-Have Skills

• Exposure to OpenTelemetry APIs for Node.js or distributed tracing concepts.
• Experience with undici, WebSockets, or message brokers (Kafka, RabbitMQ).
• Knowledge of Docker/Kubernetes and deploying Node.js apps in cloud-native environments.
• Familiarity with Linux performance tools (perf, eBPF, flame graphs).
• Hands‑on experience building high-performance SDKs, middleware, or monitoring libraries.
• Interest in APM/observability domain and performance engineering.