Full Stack Developer

Hi, I'm Sarvagya

I build fast, scalable web apps at Walmart.

Sarvagya Saxena portrait

About me

Building with purpose & performance

I'm a Full Stack Developer and Software Engineer at Walmart Global Tech India, with around six years of experience building fast, scalable web applications. I graduated from NIT Silchar, where I learned to care deeply about performance, clean architecture, and thoughtful UX. I love turning complex problems into polished products — from React and Next.js frontends to Node.js APIs, Firebase integrations, and production-ready deployments. When I'm not shipping features, I'm experimenting with 3D visuals, open source, and tools that make developers faster.

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Years Exp

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Projects

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Open Source

Skills

Tools I ship with

From React and Next.js frontends to agentic RAG systems, LangChain, vector stores, and cloud-native workflows — I focus on performance, maintainability, and delightful UX.

React
Next.js
TypeScript
Node.js
Python
RAG Pipeline
Agentic AI
LangChain
Vector DB
TensorFlow
Hugging Face
Firebase
Tailwind
PostgreSQL
MongoDB
Docker
Git
JavaScript
Three.js

Portfolio

Things I've Built

RAG Lens

RAG Lens

Agentic RAG evaluation — measure and improve retrieval-augmented generation pipelines.

PythonRAGLLMs
GitHub
Zerodha Claude MCP

Zerodha Claude MCP

Automated Zerodha trade execution and portfolio analysis via an MCP bridge between Claude AI and the Kite trading API.

TypeScriptMCPBun
GitHub
Autonomous Driving Brain

Autonomous Driving Brain

End-to-end CNN for self-driving using Nvidia’s methodology — camera preprocessing, TensorFlow/Keras, and Udacity simulator integration.

PythonTensorFlowOpenCV
GitHub
Tech Blog

Tech Blog

TechTunes — headless blog with Sanity CMS, SEO, and responsive layouts.

Next.jsSanityTailwind
GitHub Live
WebRTC Video Chat

WebRTC Video Chat

Real-time peer video chat with signaling and sockets.

ReactWebRTCSocket.ioExpress
GitHub
Crazy Racing

Crazy Racing

Arcade racing experience with Three.js-powered visuals.

ReactThree.jsVite
GitHub Live
D-Social

D-Social

Decentralized social platform prototype on blockchain.

ReactNode.jsWeb3
GitHub
Food Delivery

Food Delivery

Full-stack ordering flow with real-time status updates.

ReactNode.jsMongoDB
GitHub
View all projects →

Career

Experience

  • Walmart Global Tech India

    2022 — Present

    Software Engineer

    Bengaluru, India

    • Build and maintain high-traffic customer-facing web experiences with React and TypeScript.
    • Improve performance through code-splitting, caching strategies, and measurable Core Web Vitals gains.
    • Collaborate across product, design, and platform teams to ship reliable features at scale.

  • Sears Global Technologies India

    June 2022 — July 2023

    Full Stack Developer

    Bangalore (Remote)

    • Developed a GPT-4 and LangChain-powered retail analytics chatbot that transformed raw data into business insights via GraphQL APIs and GCP-backed vector storage.
    • Built an end-to-end NFT ticketing marketplace with React, TypeScript, Express.js, and Solidity, enabling publishing, auctions, and secondary sales on-chain.
    • Reduced platform transaction costs by 50% by implementing Polygon blockchain with Metamask for seamless crypto payments.

  • GreyB Research Private Limited

    November 2020 — June 2022

    Technology Consultant

    Mohali, Punjab

    • Delivered AI-driven applications using React, Next.js, and React Native to automate clients' analytics workflows, reducing manual reporting overhead.
    • Mentored junior developers across web, Python automation, and LLM-based AI solutions, raising team capability and code quality standards.

  • NIT Silchar

    2015 — 2019

    B.Tech — Computer Science

    • Built foundation in algorithms, systems, and software engineering practices.
    • Participated in hackathons and technical communities focused on web development.
Available for freelance opportunities

Let's Connect

Have a project in mind or want to collaborate? Send a message — I typically reply within 48 hours.

sarvagyasaxena.2102@gmail.com