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Sr. Backend Developer

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Onsite

Sr. Backend Developer

Nirnayan Healthcare

Sr. Backend Developer

Skills

SQL QueriesNestNodeExpressPostgreSQLMySQLRedisGitLinuxJavascript

1 year ago

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Important information


Contract type:

Permanent

Location:

Kolkata, West Bengal, India

Work mode:

Onsite

Published on:

13 October 2026

What they need


  • We are looking for a highly skilled and experienced Backend Developer to join our dynamic team. The ideal candidate should have 4+ years of professional backend development experience, with strong expertise in Node.js, NestJS, Express.js, and relational databases like PostgreSQL and MySQL. You should also have solid knowledge of server management (VPS) and proficiency in JavaScript.

Key Responsibilities:

  • Design, develop, and maintain robust backend systems using Node.js, Express.js, and NestJS.
  • Develop scalable and efficient APIs, ensuring high performance and responsiveness to requests.
  • Integrate and manage PostgreSQL and MySQL databases using TypeORM and raw SQL queries.
  • Optimize database queries, design schemas, and ensure data integrity and security.
  • Deploy and maintain applications on Virtual Private Servers (VPS) or cloud-based environments.
  • Monitor server performance, perform debugging, and troubleshoot production issues.
  • Collaborate with front-end developers, DevOps, and other stakeholders to deliver end-to-end solutions.
  • Write clean, reusable, and well-documented code.
  • Stay up to date with emerging technologies and best practices in backend development.

Required Skills:

  • 3+ years of backend development experience.
  • Strong hands-on experience with Node.js, Express.js, and NestJS.
  • Solid understanding of relational databases: PostgreSQL, MySQL.
  • Proficiency with TypeORM and raw SQL.
  • Strong knowledge of JavaScript (ES6+).
  • Experience with server deployment, configuration, and monitoring on VPS or Linux-based environments.
  • Good understanding of RESTful API design principles.
  • Familiarity with Git and version control best practices.
  • Nice to Have (Bonus Skills):
  • Basic understanding of CI/CD pipelines.
  • Experience with Redis or other caching mechanisms, etc.

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