Engineering Scalable Systems with Precision.
Specialist in transitioning complex apps from frontend to scalable NestJS/Node.js backends. Expert in Offline-First Architecture, Kafka Microservices, and Recursive Algorithms. Bridging the gap between high-performance backends and intuitive mobile/web interfaces.
Role: Senior Full Stack Engineer
Location: Remote / Global
Education: MCA Cloud Computing @ Manipal
[✓] Offline-First Systems
[✓] Real-time Data Pipelines
[✓] Algorithmic Optimization
Technical Arsenal
dns Backend
devices Client
database Data
architecture Architecture
Featured Experience
Codeclouds IT Solutions Pvt. Ltd
Senior Software Engineer (Hybrid) Kolkata, India
• Migrated core aggregation logic for 11.8M+ records from MongoDB to PostgreSQL, resolving severe latency and high AWS compute costs.
• Engineered pre-calculated analytics using Materialized Views, triggers, and pg_cron, reducing reporting API response times to milliseconds.
• Implemented scalable PostgreSQL table partitioning by date to manage massive datasets and efficiently route historical data requests.
• Architected an event-driven microservices ecosystem using AWS SNS/SQS, Kafka streams, and automated retry mechanisms for distributed job processing.
• Developed a dynamic Subscription Management Engine supporting recurring billing cycles, complex seasonal discounts, and granular RBAC using NestJS Guards.
• Refactored legacy ORM queries, reducing property search API latency by 40% and directly improving the frontend user experience.
• Integrated Stripe Connect for complex split-payouts, Google Maps API for precise geo-fencing, and Socket.io to stream real-time statuses to client dashboards.
• Authored technical documentation for system onboarding and developed dynamic frontend reporting filters using Next.js.
Web Idea Solution LLP
Software Engineer (Remote) Kolkata, India
• Architected a fault-tolerant offline-first mobile system using a relational SQLite database, enabling field agents to collect extensive media data in zero-network environments.
• Engineered a custom bi-directional sync engine with timestamp-based conflict resolution and a Redux caching layer, significantly reducing disk I/O operations.
• Developed a recursive search algorithm to efficiently render 24-level deep dependency trees without UI lag.
• Integrated Google Vision API (OCR) to automate data entry and managed payload chunking strategies to prevent API timeouts during bulk orders of 10,000+ items.
• Implemented enterprise-grade analytics pipelines using Segment to ensure accurate capture of business intelligence events.
• Managed CI/CD release engineering using Microsoft CodePush to deploy zero-downtime hotfixes directly to production, bypassing App Store review cycles.
• Led type-safe migrations from JavaScript to TypeScript and integrated GraphQL for optimized data fetching across mobile and web platforms.
Key Impact Projects
DGV Serve
wifi_off• Architected a fault-tolerant offline system for field agents.
• Engineered a custom bi-directional sync engine with conflict resolution.
• Implemented Redux caching to reduce disk I/O for heavy forms.
QL Supply
manage_search• Developed a recursive search algorithm for 24-level deep automobile part trees.
• Integrated OCR for automated VIN data entry.
• Optimized bulk order payloads (10,000+ items) with chunking strategies.