KM
Available for new opportunities

Hi, I'm Keyur Modi

A Full Stack Developer specializing in React.js, Node.js, MongoDB, and Web3 technologies. Building premium, scalable web applications. 

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About Me

I am a Full Stack MERN Developer with 4+ years of total web development experience, including 2+ years specializing in React.js, Node.js, Express.js, and MongoDB. My journey involves transforming complex problems into elegant, maintainable solutions, from database architecture to intuitive user interfaces.

Currently, I specialize in building real-time applications and robust Web3 platforms. I have a proven track record of owning features end-to-end, optimizing application performance, and working collaboratively in agile environments to ship clean code faster.

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Years Experience

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Projects Completed

Frontend Mastery

Building responsive, accessible, and pixel-perfect UIs with React and Next.js.

Backend Architecture

Designing robust APIs and real-time systems using Node.js and Express.

Web3 & Blockchain

Developing decentralized applications and smart contract integrations.

Performance Optimization

Diagnosing bottlenecks and optimizing for maximum speed and SEO.

Professional Experience

MERN Stack Developer

Cirkle Studio Pvt. Ltd. · Surat, India

Jan 2024 – Present
  • Designed and developed full-stack web applications end-to-end — frontend UI, backend APIs, database modeling, and production deployment — delivering multiple client-facing features on schedule
  • Built responsive, accessible, and reusable React.js components from Figma designs, reducing UI inconsistencies by 25%
  • Implemented secure JWT authentication and role-based authorization across applications, strengthening system security and access control
  • Developed real-time features using WebSockets for instant client-server data synchronization, cutting data latency by up to 40%
  • Diagnosed API bottlenecks and optimized frontend bundle sizes, improving application load performance by approximately 30%
  • Participated in code reviews and agile team discussions, contributing to shared engineering standards and maintainable codebases
  • Leveraged AI-assisted development tools to accelerate feature delivery and improve overall development productivity
React.jsNode.jsMongoDBExpress.jsWebSocketsJWT

Web Developer

TemplateMela · Surat, India

Sep 2021 – Dec 2023
  • Converted Figma and PSD designs into responsive, pixel-perfect web pages ensuring consistent layout across all major browsers and devices.
  • Built and customized frontend UI templates on the PrestaShop e-commerce platform, contributing to faster delivery of client projects.
  • Identified and resolved cross-browser compatibility issues, reducing UI-related bugs by approximately 20%.
HTML/CSSPrestaShopResponsive DesignFigma

My Education

Bachelor of Computer Applications (BCA)

Veer Narmad South Gujarat University
2018 - 2021Surat, India

Completed a comprehensive three-year degree program focusing on computer applications, software engineering, and database management systems. Developed a strong foundation in programming logic, algorithms, and web technologies.

Technical Skills

Frontend
React.jsNext.jsJavaScript (ES6+)TypeScriptHTML5 & CSS3ReduxTailwind CSSMaterial UIChakra UI
Backend
Node.jsExpress.jsREST APIsWebSocketJWT AuthenticationbcryptCron JobsMulter
Database
MongoDBPostgreSQLPrisma ORMData ModelingQuery Optimization
Blockchain & Web3
dApp DevelopmentEthereumXDC NetworkEthers.jsWeb3.jsWagmiViemSmart Contracts
Tools & Practices
Git & GitHubLinux/Windows ServersFigmaChrome DevToolsAgile WorkflowsCode Reviews
Soft Skills
Cross-functional CollaborationClient CommunicationRequirement GatheringProblem SolvingOwnership Mindset

Featured Projects

DoruAir – Multi-Chain Crypto Wallet Platform

Live

Independently built a full-stack crypto wallet platform from scratch with Google OAuth login, handling everything from database schema design to production server deployment.

ReactNode.jsExpressMongoDBWeb3.js

Insite Work – Worksite Management Platform

Live

Built dynamic document workflows with field validation and file upload support, streamlining multi-role approval processes and improving workflow efficiency by 30%.

ReactNode.jsBootstrapMUIApache Superset

XDC Protein – Investor dApp Dashboard

Live

Built a Web3 investor dashboard supporting MetaMask, WalletConnect, and injected wallet providers via Wagmi and Viem on the XDC Network.

ReactTypeScriptWagmiViemTailwind CSS

XDC Protein – Admin Panel & Reward Distribution

Live

Built a bulk token and native XDC reward distribution tool supporting CSV and Excel (XLSX) uploads.

ReactTypeScriptWagmiViemXLSX

XDC Protein – Backend REST API

Live

Architected a RESTful API in Express.js and TypeScript with separate role-based modules for admin operations and public investor data access.

Node.jsExpressTypeScriptMongoDBMulter

Get In Touch

I'm currently available for new opportunities. Whether you have a question, a project proposal, or just want to say hi, I'll try my best to get back to you!