B. Pradeep Chandu

Senior Node.js Developer | Backend Engineer

Phone: +91 8522991845 | Email: bpradeepchandu97@gmail.com | LinkedIn: linkedin.com/in/pradeep-chandu-359023210

Location: India

Professional Summary

Backend Engineer with 5+ years of experience building and operating high-scale Node.js applications and microservices. Expertise in Node.js, Express.js, TypeScript, REST API development, MongoDB, Redis, PostgreSQL, JWT authentication, RBAC authorization, performance optimization, caching, distributed systems, and production troubleshooting. Proven results include 40% API latency reduction, 55% query optimization, and reliable backend systems serving 100K+ concurrent users.

Core Skills

Backend: Node.js, Express.js, REST APIs, Microservices, System Design, Distributed Systems, WebSocket

Languages: JavaScript (ES6+), TypeScript

Database & Caching: MongoDB, Mongoose, PostgreSQL, Redis, Database Indexing, Query Optimization

Security: JWT Authentication, Refresh Tokens, RBAC, Rate Limiting, Input Validation, CORS

DevOps & Tools: Git, Docker, CI/CD, Jenkins, GitHub Actions, Linux, Logging, Monitoring, Bull Queue

Domain: Healthcare Systems, HIPAA Compliance

Professional Experience

Senior Node.js Developer / Backend Engineer

Maren Solutions Pvt Ltd | Feb 2022 - Present

  • Architected and maintained scalable microservices backend platform for healthcare application supporting 100K+ users.
  • Designed service boundaries, API contracts, and inter-service communication for reliable feature delivery and maintainability.
  • Improved MongoDB performance with schema redesign and indexing, reducing query time by 55% and API latency by 40%.
  • Implemented Redis L1/L2 caching strategy for sessions and APIs, achieving sub-200ms p95 response times at 10K+ requests/second.
  • Built payment gateway abstraction for Stripe and PayPal with retry logic, idempotency, and reconciliation, reaching 99.95% success rate.
  • Implemented secure authentication and authorization using JWT, refresh token rotation, and RBAC for 50K+ active users.
  • Developed observability stack with structured logging, APM, and alerting; reduced MTTR from 2 hours to 20 minutes.
  • Implemented queue processing with Bull and Redis for asynchronous jobs, handling 10K+ jobs per hour.
  • Led backend security implementation: rate limiting, request validation, sanitization, and HIPAA-compliant audit logging.

Node.js Developer

Beyond Drops Pvt Ltd | Jul 2021 - Oct 2021

  • Developed production backend services with Node.js and collaborated with frontend teams on API contracts and data models.
  • Optimized MongoDB schemas and indexes, reducing query execution time by 40% and improving application responsiveness.
  • Implemented JWT-based authentication and refresh token strategy for secure user sessions and access control.
  • Introduced code review and quality standards, helping reduce production bugs by approximately 30%.

MEAN Stack Developer

Dhenushya Infotech Pvt Ltd | Jun 2019 - Oct 2020

  • Built and maintained backend services using Node.js and Express.js for applications serving 5,000+ daily active users.
  • Designed RESTful APIs with consistent error handling, improving frontend integration efficiency by around 25%.
  • Implemented JWT authentication and role-based authorization for multi-role application access.
  • Improved performance through indexing and caching, increasing application speed by about 30%.

Education

Additional Information

Languages: English, Telugu