Available for freelance & full-time

πŸ‘‹ Hi, I'm

Parag Jain

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I build intelligent products with LLMs β€” AI agents, RAG & MCP tooling, on scalable Node.js microservices & the MERN/MEAN stack.

Parag Jain
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About Me

Parag Jain

Parag Jain

GenAI Engineer & Full-Stack Developer

πŸ“ India

// who am I

I'm a GenAI engineer and full-stack developer with 4+ years of experience shipping production software. I build intelligent applications with LLMs β€” AI agents, RAG pipelines, and MCP tooling β€” using OpenAI, Anthropic Claude, and Gemini (LangChain / LangGraph), all on a scalable Node.js foundation. I design event-driven microservices with Kafka, Redis, and MongoDB, and craft polished frontends in React and Angular. I love turning ambiguous ideas into reliable, real-world AI products.

GenAI & Agentic AIRAG & LLM Apps4+ Years ExperienceNode.js MicroservicesFull-Stack MERN / MEANKafka Β· Redis Β· MongoDB
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Years Experience
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Projects Shipped
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Technologies
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AI Providers

Experience & Education

My journey so far πŸš€

Senior Full Stack Developer

June 2025 – Present

Selcom

Remote Β· India

  • Led platform modernization by redesigning the microservices architecture across the Duka ecosystem, improving scalability, maintainability, and overall system performance.
  • Designed and built a scalable delivery-agent management system, replacing third-party integrations and reducing operational costs.
  • Developed a dedicated Payment Microservice to decouple payment workflows and enable faster feature rollouts.
  • Built backend services compatible with multiple system versions (V3/V4), ensuring smooth migration and backward compatibility.
  • Engineered a real-time location-tracking system using Kafka and Redis, handling 300+ concurrent agents with improved latency and throughput.
  • Implemented event-driven architecture using Kafka topics, partitions, and offset-based processing.
  • Unified multiple admin systems into a centralized RBAC-based portal, improving access control and operational visibility.
  • Resolved a long-standing search issue by integrating Elasticsearch, significantly improving search performance and reliability.

Full Stack Developer

Apr 2023 – June 2025

BrainerHub Solutions

Ahmedabad

  • Developed dynamic forms and reusable components with React.js and Chakra UI, enhancing user engagement and reducing form submission times by 20%.
  • Automated backend tasks such as sending invites and notifications using Node.js and cron jobs.
  • Integrated Google OAuth 2.0 and JWT for secure authentication, increasing user sign-ups by 15%.
  • Converted Excel data into PDF reports using Node.js and ExcelJS, automating monthly report generation and reducing time by 50%.
  • Optimized MongoDB queries with aggregation pipelines, reducing query execution time by 30%.
  • Deployed applications on AWS EC2 and set up CI/CD pipelines for smooth updates, reducing deployment time by 40%

Full Stack Developer Bootcamp

July 2022 – Mar 2023

Masai School

Bangalore

  • Intensive 8-month, full-time bootcamp in full-stack web development completed before starting my first developer role.
  • Built a strong foundation in Data Structures & Algorithms and problem-solving through daily coding practice.
  • Learned frontend and backend end-to-end β€” JavaScript, React, Node.js, Express, and MongoDB β€” through project-based, test-driven assignments.
DSAJavaScriptReactNode.jsExpressMongoDBHTML/CSSProblem Solving

B-Tech in Civil Engineering

2015 - 2019

Samrat Ashok Technological Institute

Bangalore Β· CGPA 8.2/10

  • Led the college's technical fest organizing committee
  • Published research paper on sustainable construction materials
  • Won first prize in national-level bridge design competition
  • Member of the Institute's Innovation Council
Data StructuresObject-Oriented ProgrammingDatabase ManagementSoftware EngineeringWeb Development

Skills & Technologies

An interactive galaxy of everything I build with β€” drag to explore 🌌

Initializing skill galaxy…
AI / GenAI
Frontend Development
Backend & Systems
Tools & Platforms

GitHub Activity

Live snapshot of my open-source contributions & code πŸš€

GitHub stats
Top languages
GitHub streak
Contribution activity graph

Featured Projects

Drag, swipe or use the arrows to explore ✨

01

Multi-Vendor E-Commerce Marketplace

A full-stack multi-vendor marketplace (BigBasket/Blinkit-style) with a flexible product model (category attributes + variants + modifiers), RBAC with granular resource:action permissions, and Stripe-Connect split payments backed by a double-entry ledger and vendor payouts β€” spanning a Node/Express + TypeScript API, an Angular admin, an Angular SSR storefront, and a Flutter customer app.

TypeScriptNode.jsExpressMongoDBAngularStripeFlutterSocket.IO
02

create-backend β€” npm CLI

An open-source npm CLI (@iesparag/create-backend) that scaffolds a production-ready Node.js/Express + MongoDB + Socket.io backend in a single command β€” clean MVC architecture with JWT auth, Zod validation, centralized error handling, rate-limiting, and security middleware (Helmet/CORS).

Node.jsExpressMongoDBSocket.ionpm CLI
Available for new projects

Let's build something amazing

Got an idea, a role, or a freelance project? I'm just a message away.

Email me at

iesparagjain@gmail.com