• Design, develop, and maintain backend services & RESTful APIs using Node.js & Express.js.
• Build scalable and high-availability server-side applications.
• Design and optimize database schemas and queries.
• Implement authentication, authorization, and security best practices.
• Integrate third-party services and external APIs.
• Ensure application performance, reliability, and scalability.
• Write clean, reusable, testable, and well-documented code.
• Participate in code reviews, design discussions, and architecture decisions.
• Collaborate with frontend, mobile, QA, and DevOps teams.
• Debug and resolve production issues.

Required Skills & Qualifications:

• 4–6 years of hands-on experience in backend development.
• Strong proficiency in Node.js and Express.js.
• Experience with MongoDB and/or SQL database...