Hi there, I'm

Prahlad Singh Mehta

|

I design and build fast, scalable web applications — from pixel-perfect interfaces to high-throughput backends with Redis caching and solid system design.

Prahlad Singh Mehta
Java
Spring Boot
Redis
React
Next.js
Node.js
TypeScript
MongoDB
MySQL
OpenAI
LangChain
Pinecone
Docker
AWS
Tailwind CSS
Java
Spring Boot
Redis
React
Next.js
Node.js
TypeScript
MongoDB
MySQL
OpenAI
LangChain
Pinecone
Docker
AWS
Tailwind CSS

01. Who I am

About Me

I'm a Software Developer Engineer I currently at InteligenAI, where I build backend services with Spring Boot and Node.js for AI-driven products. I work across the stack — React and Next.js on the frontend, Java and JavaScript ecosystems on the backend — with a strong focus on system design fundamentals: caching with Redis, rate limiting, real-time messaging, and horizontal scaling. Fueled by a passion for continuous learning, I'm committed to delivering high-quality, production-ready software.

When I'm not shipping features, I'm sharpening my fundamentals — solving data-structures and algorithms problems in Java and digging into how large-scale systems are designed.

1.5+
Years Experience
10+
Projects Built
15+
Technologies
750+
DSA Problems

02. What I work with

Skills

Languages

JavaScriptTypeScriptJavaSQLHTML / CSS

Frontend

ReactNext.jsVue.jsReduxTailwind CSSMaterial UI

Backend

Node.jsExpress.jsNestJSSpring BootREST APIsWebSocketsJWT / Auth0

Databases & Caching

MongoDBPostgreSQLRedisMySQLMongooseIndexing & Query Optimization

AI & RAG

RAG SystemsLangChainOpenAIPineconeLLM IntegrationPrompt Engineering

Tools & Platforms

Git / GitHubCI/CDDockerAWSPostmanVercelNetlifyLinux

System Design

Beyond writing code, I care about how systems behave at scale. Concepts I apply and study daily:

  • Caching strategies (cache-aside, write-through, TTL & eviction)
  • Rate limiting (token bucket, sliding window with Redis)
  • Real-time messaging & Pub/Sub
  • Load balancing & horizontal scaling
  • Database indexing, sharding & replication
  • Message queues & async processing

03. Where I've worked

Experience

Jan 2026 – Present

SDE 1

InteligenAI

  • Building backend services with Spring Boot and Node.js for AI-driven products.
  • Developing RAG pipelines with LangChain, OpenAI and Pinecone — document ingestion, embeddings, vector search and grounded LLM responses.
  • Designing and implementing REST APIs with JWT auth, Redis caching and clean layered architecture for scale.
JavaSpring BootNode.jsLangChainOpenAIPineconeRedis

Sept 2024 – Dec 2025

Full Stack Web Developer

Excellence Technologies

  • Ecosystem.ai — Designed and implemented the user and subscription module for an AI agent orchestration platform, enabling users to deploy 10+ autonomous agents (auto-mailers, schedulers) with usage-based billing.
  • Integrated Stripe for multi-tiered subscription plans, real-time credit tracking and webhook-driven access sync, ensuring accurate entitlements across the platform.
  • Architected a scalable state layer with Redux Toolkit for authentication and subscription flows, improving UX and reducing support tickets by 15%.
  • Upcar — Engineered a scalable car rental platform on the MERN stack handling 1000+ concurrent users, with real-time booking sync via WebSocket and 200+ REST API endpoints.
  • Integrated Stripe for a 3-step secure payment flow and OpenAI APIs for license verification and chatbot support, reducing manual workload by 60%.
  • Designed modular role-based access control (RBAC) ensuring secure API usage across admin, driver and customer roles.
ReactNode.jsExpressPostgreSQLMongoDBStripeWebSocketsRedux ToolkitOpenAI

04. What I've built

Projects

EMR — Electronic Medical Records

Featured

A healthcare EMR system built at InteligenAI, used by hospitals in real time — patient registration, medical histories, appointments, prescriptions and lab reports in one secure dashboard. Role-based access for doctors, staff and admins, with fast record search and an audit-friendly data model.

ReactSpring BootNode.jsMongoDBRedisJWT

Ecosystem.ai

Featured

An AI agent orchestration platform built at Excellence Technologies — designed the user and subscription modules that let customers deploy 10+ autonomous agents (auto-mailers, schedulers) with usage-based billing. Stripe-powered multi-tier plans, real-time credit tracking and webhook-driven access sync keep entitlements accurate across the platform.

ReactNode.jsExpressPostgreSQLStripeRedux Toolkit

Upcar — Car Rental Platform

Featured

A scalable car rental platform built at Excellence Technologies on the MERN stack — handles 1000+ concurrent users with real-time booking sync over WebSockets and 200+ REST endpoints. Stripe 3-step secure payments, OpenAI-powered license verification and chatbot support, and role-based access control across admin, driver and customer roles.

ReactNode.jsExpressMongoDBRedisWebSocketsStripeOpenAI

AI Mock Interview Platform

Featured

An AI-powered mock interview platform where users practice real interview rounds with an AI interviewer — role-specific questions, voice/text answers, and instant AI feedback with scoring on every response so candidates know exactly what to improve before the real thing.

ReactNode.jsExpressMongoDBAI / LLM

Real-Time Chat Application

Featured

A responsive chat application with real-time messaging over Socket.io. Supports user authentication, private and group chats, and a seamless UI for an engaging communication experience.

ReactNode.jsExpressMongoDBSocket.io

E-Commerce Platform

A feature-rich e-commerce application built on the MERN stack — secure user authentication, product browsing, cart management and payment processing, wrapped in a responsive, intuitive interface.

MongoDBExpressReactNode.js

Task Management App

A collaborative task manager with real-time task updates over WebSockets. Includes user authentication, multi-user boards and a responsive UI for seamless team workflows.

Vue.jsNode.jsExpressMongoDBWebSockets

05. Problem solving

DSA on LeetCode

Live from LeetCode
758
problems solved
Global Rank #74,758
View profile
Easy216 / 956
Medium447 / 2091
Hard95 / 956

06. Where I studied

Education

2024

Bachelor of Computer Application

Dev Bhoomi Uttarakhand University

2020

Intermediate (Science)

SMT Keema Joshi Memorial Inter College

2018

High School

Saraswati Academy

07. What's next?

Get In Touch

I'm currently open to new opportunities and interesting projects. Whether you have a question, a role in mind, or just want to say hi — my inbox is always open.