Hi There,

Shubham Kumar

And I'm a GenAI Backend Engin

Building intelligent systems with AI. Specialized in RAG architectures, LangChain, and scalable backend solutions that power next-generation applications.

Shubham Kumar - GenAI Backend Engineer

About Me

GenAI Backend Engineer

I'm Shubham Kumar, a passionate engineer who transforms ideas into intelligent systems. I architect and build production-grade AI platforms that solve real-world problems.

My expertise spans across building RAG pipelines, Graph RAG systems, and enterprise search platforms. I work with cutting-edge technologies like LangChain, LangGraph, FastAPI, and vector databases to create scalable microservices that power AI-driven applications. From semantic search to multi-agent workflows, I bring AI capabilities to life through robust backend architectures.

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My Skills

GenAI & LLM Systems

Expert in building RAG and Graph RAG architectures using LangChain and LangGraph for intelligent AI applications.

Proficient in semantic search, agent systems, LLM orchestration, and embedding strategies for enhanced contextual reasoning.

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Backend & Microservices

Building scalable microservices with FastAPI, Flask, Django, and gRPC for high-performance distributed systems.

Expertise in REST APIs, background workers with Celery, and designing robust backend architectures.

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Databases & Vector Stores

Working with PostgreSQL, MongoDB, Neo4j for knowledge graphs, and vector databases like Pinecone and Qdrant.

Implementing efficient data retrieval, caching with Redis, and optimizing database performance at scale.

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Work Experience

Associate Engineer – GenAI & ML Backend

Rapid Innovation Sep 2025 – Present Noida, India
  • Built production-grade GenAI backend systems using RAG and Graph RAG for enterprise knowledge platforms
  • Designed microservice architectures with FastAPI and gRPC, supporting scalable ingestion pipelines using Celery workers
  • Developed enterprise search platform integrating Gmail, GitHub, Google Drive, and Confluence using Neo4j, Pinecone, Redis, and PostgreSQL
  • Implemented multi-agent workflows using LangGraph and LangSmith with MCP-based orchestration for automation use cases
  • Optimized LLM retrieval pipelines and embedding strategies to improve response accuracy and contextual reasoning
RAG Graph RAG FastAPI gRPC LangGraph Neo4j Pinecone

Software Engineer (Backend & AI Systems)

Avista Web Technologies Aug 2024 – Sep 2025 Noida, India
  • Designed and implemented BPMN workflows for Diginotary to automate digital notarization and execution tracking
  • Built and maintained RESTful APIs for Diginotary, DMA Guru, and HelloDR using Node.js, including real-time notifications with Socket.IO
  • Developed AI-powered backend services with Flask and FastAPI, integrating LLM-based chatbot functionality for healthcare use cases
  • Integrated Stripe payments and deployed services on AWS (EC2, S3) for scalable hosting and secure asset storage
Node.js FastAPI Flask Socket.IO AWS Stripe

Freelance Backend Developer

Self-Employed Jan 2023 – July 2024 Remote
  • Delivered backend systems for multiple clients using Python frameworks (FastAPI, Django, Flask)
  • Designed REST APIs, database schemas, and scalable architectures for production applications
  • Implemented background processing, data pipelines, and cloud deployments on AWS
Python FastAPI Django Flask AWS

Personal Projects

project1

Legal Document Chat System

AI-powered legal document analysis system with RAG architecture for intelligent document querying. Built with FastAPI, LangChain, and vector databases for semantic search and context-aware responses on legal documents.

project2

Weather Intelligence Agent

Automated weather reporting system with AI agent capabilities for data fetching, analysis, and email distribution. Implemented background processing and intelligent report generation with Python and modern backend practices.

project3

BPMN Workflow Engine

Designed and implemented BPMN workflows for digital notarization platform with automated execution tracking. Built RESTful APIs with Node.js and real-time notifications using Socket.IO for seamless workflow management.

Contact Me

Address

Chamba, Himachal Pradesh India, 176314

Mobile Number

+91 8219756114

Email

shubhee1021@gmail.com

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