Node.js Developer (Scale, Refactor & Deploy)

3 years

0 Lacs

Posted:10 hours ago| Platform: Linkedin logo

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On-site

Job Type

Full Time

Job Description

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About the Role


You’ll work primarily on an existing Node.js codebase—reading, debugging, refactoring, and extending it—while keeping services fast, reliable, and scalable. You should be comfortable doing sample deployments (Docker/PM2/Nginx) and setting up basic CI/CD.


Responsibilities


  • Own features end-to-end in an existing Express: read legacy code, refactor safely, and ship improvements.
  • Design and maintain REST APIs (versioning, pagination, rate-limits, idempotency); GraphQL is a plus.
  • Ensure scalability & performance: caching with Redis, connection pooling, query optimization, load shedding, and graceful shutdowns.
  • Implement Auth: JWT (access/refresh/rotation), OAuth2/SSO basics.
  • Handle deployments: Dockerize services, run with PM2/Gunicorn-style process managers, reverse proxy via Nginx, manage env secrets.
  • Add observability: structured logs (Winston), metrics/health checks, error tracking (Sentry).
  • Collaborate through Git/GitHub (branches, PR reviews, Actions).


Must-Have Skills


  • Node.js (16+) with Express (NestJS nice to have); strong async patterns and error handling.
  • TypeScript (or willingness to migrate quickly).
  • Databases: PostgreSQL/MySQL (knex/Prisma/TypeORM) and at least one NoSQL (MongoDB) experience.
  • Caching & queues: Redis (cache-aside, TTLs, rate-limiters), Bull/BullMQ or RabbitMQ basics.
  • Security: OWASP, input validation, CORS/CSRF, headers, secrets management.
  • Deployments: Docker + Nginx + PM2, environment configs, zero-downtime restarts.
  • Docs: OpenAPI/Swagger for REST endpoints.
  • Git/GitHub proficiency.


Good to Have


  • CI/CD: GitHub Actions; Jenkins exposure
  • Cloud: DigitalOcean/AWS/Vercel basics
  • Monitoring: Prometheus/Grafana, OpenTelemetry
  • Front-adjacent: Next.js API routes, basic CDN/cache headers
  • k6/Locust for load testing
  • Screening Task (4–6 hrs)
  • Fork an existing Express app (we’ll share).
  • Add a paginated, cached /items endpoint (Redis cache + cache-busting on write).
  • Write Jest + Supertest for the new route and one legacy route you refactor.
  • Provide Swagger docs and a Dockerfile; run behind Nginx locally.
  • Share a short README (architecture, scaling approach, how to run).

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