Backend Developer (Node JS)

Title / Designation – Backend Developer (Node JS)
Duration - 6 months + Extension possible
Location – Remote with occasional travel to Concord, North Carolina
Number of Internal interviews with Nagarro – 1
Client Interviews – 2
Mode of Interviews – Virtual
Tentative start date – ASAP
Maximum Rate – USD $85/ hour on C2C all inclusive.

Must have Skills: AWS Lambda, Amazon DynamoDB, Node JS, Amazon Bedrock, AWS Cognito

Primary Responsibilities:

• Design, develop, and maintain scalable backend services leveraging Amazon Web Services, with a focus on Amazon Bedrock for AI-driven capabilities.
• Implement RBAC (Role-Based Access Control) using AWS Cognito groups to ensure secure and role-specific access.
• Perform backend security hardening, including CORS lockdown, input validation, and API throttling mechanisms.
• Design and manage DynamoDB data models, including Global Secondary Indexes (GSIs), and handle backup/restore strategies.
• Develop and maintain data migration scripts, seed data tooling, and execute migration from staging to production environments.
• Contribute to PACE prototype feature implementation, including AI-powered features using Bedrock where applicable.
• Build and expose secure, scalable RESTful APIs and integrate with frontend systems.
• Collaborate with frontend, DevOps, and product teams to deliver end-to-end solutions.
• Monitor system performance, troubleshoot issues, and optimize backend services for reliability and scalability.

Experience and Skills Required:

• 9-13 years of experience in backend development.
• Strong hands-on experience with Node.js or similar backend technologies.
• Proven experience working with Amazon Web Services, especially: Amazon Bedrock (LLM integration, prompt orchestration, AI workflows), AWS Cognito (authentication, RBAC), DynamoDB (data modeling, GSIs, performance tuning), AWS Lambda, API Gateway.
• Solid understanding of authentication and authorization mechanisms (RBAC, JWT, OAuth).
• Experience implementing API security best practices (CORS, validation, throttling, rate limiting).
• Hands-on experience with data migration strategies, scripting, and environment data management.
• Familiarity with Generative AI concepts, prompt engineering, and integrating AI services into backend systems.
• Experience with CI/CD pipelines, version control (Git), and DevOps practices - Strong debugging, analytical thinking, and problem-solving skills.
• Good communication and ability to work in cross-functional teams.