Shirshendu Pal

Software Engineer with over 6 years of experience building and scaling high-traffic backend systems using Node.js and Express.js. Proficient in MongoDB, Redis, and PostgreSQL, with deep expertise in distributed systems, microservice architecture, and real-time data processing. Proven ability to design high-performance APIs, optimize complex database aggregations, and implement robust AWS cloud infrastructure (EC2, Lambda, S3) for enterprise clients like Tata Motors and BigBasket.

Senior Software Engineer - Ariveguru Technologies

(2024-03)

• Maintain and enhance 'Study Design App,' an AI-centric platform for Advarra, enabling advanced PDF analysis using Node.js, Fastify, PostgreSQL, and Databricks.
• Developed an agentic AI tool for the healthcare industry to intelligently parse PDF documents and generate contextual answers to user queries.
• Responsible for full-stack maintenance of the Flywheel application, managing both backend services and frontend components.

Software Engineer - Sociohood Technologies & Technixia Automation

(2022-02 - 2024-03)

• Developed and deployed Sociohood, a multi-tenant management platform for enterprise clients including Tata Motors and BigBasket, using Node.js, Express.js, and MongoDB.
• Engineered a scalable backend architecture featuring modular route loading, role-based access control (RBAC), and custom authorization middleware for secure multi-level user access.
• Optimized large-scale MongoDB aggregation pipelines, reducing query execution time by over 96% (from 32s to under 1s).
• Deployed Redis caching and configured Nginx for load balancing across AWS EC2 instances, successfully scaling the system to handle over 3,000 concurrent users.
• Built a real-time notification system using Firebase Cloud Messaging (FCM) to broadcast messages to over 9,000 users simultaneously.
• Led the development of Pipaan, a US-based social media and marketplace platform, utilizing Node.js, Express.js, and PostgreSQL.
• Integrated a Stripe-based automatic payment system, leveraging webhooks and Socket.io for real-time transaction updates.
• Mentored junior engineers and interns, contributing to the successful delivery of over 20 production-grade applications.

Backend Engineer - PCS GLOBAL PRIVATE LIMITED

(2020-01 - 2022-02)

• Published and maintained over 20 production applications, with several scaling to support more than 10,000 active users.
• Developed the complete backend for a B2B travel booking platform, integrating the Amadeus API for real-time, XML-based flight data parsing and booking.

Master of Computer Applications - Computer Applications - University of Engineering & Management (UEM)