Open to opportunities

KAUSHIK SAHOO

@kaushiksahoo

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Full-stack developer building blockchain and React Native apps, delivering secure fintech-grade Web3 solutions.

India

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What I'm looking for

I’m looking for a role where I can build secure Web3 and full-stack products for fintech use cases—focused on fraud prevention, scalable payments, and real-time analytics—while growing my skills in cybersecurity-minded engineering.

I’m a full-stack, blockchain, and React Native developer focused on building secure, high-performance applications with a MERN-based workflow and RESTful APIs. I specialize in Web3 development—writing Solidity smart contracts and building DApps with Web3.js and Ethers.js—while also designing practical integrations for real user flows.

My standout work includes a Decentralized Exchange (DEX) Fraud Detection System where I developed on-chain logging and real-time monitoring to detect market manipulation patterns like sandwich attacks, wash trading, and pump & dump schemes. I also built a cross-platform logistics app (React Native) with real-time tracking, payments, and Google Maps, and a Web3 Todo-list DApp using wallet connectivity and smart-contract interactions on the Polygon testnet.

Experience

Work history, roles, and key accomplishments

Web3 Todo-List DApp

Jan 2025 - Present (1 year 5 months)

Built a full-stack decentralized todo-list DApp using Solidity and React to create and manage tasks on-chain. Implemented wallet connectivity with RainbowKit and wagmi and enabled interaction with smart contracts deployed on the Polygon testnet.

Solidity Smart Contracts React Web3 Wallet Integration Rainbow Kit Wagmi Polygon Testnet Hardhat dApps

ISMS Student Management

ISMS - Institute Student Management System

Jan 2025 - Present (1 year 5 months)

Developed a student management frontend portal with secure authentication and role-based access control. Implemented academic records, attendance, file uploads, and announcements with a focus on financial-grade data security and responsive UI for large user groups.

JavaScript HTML5 CSS3 Frontend Development Authentication Role Based Access Control Upload Responsive UI Data Security

Fill It Container App

Fill It - Smart Container Fulfillment

Jan 2025 - Present (1 year 5 months)

Built a cross-platform React Native mobile app for container delivery tracking in logistics and supply chain management. Integrated real-time status, payments, and Google Maps API, along with a responsive frontend to support enterprise-scale operations.

React Native JavaScript Firebase Google Maps Mobile App Development Payment Integration Responsive UI Cross Platform Development

DEX Fraud Detection

DEX Fraud Detection System

Jan 2025 - Present (1 year 5 months)

Developed algorithms to detect market manipulation and fraudulent transaction patterns including sandwich attacks, wash trading, and pump-and-dump schemes. Designed Solidity contracts and built a real-time fraud monitoring dashboard integrated with wallets and exchanges to improve fraud prevention and on-chain transparency.

Solidity Hardhat Node.Js React Vite Web3.js Transaction Monitoring Fraud Detection NodeJS

Education

Degrees, certifications, and relevant coursework

30DaysCoding

Course, Blockchain Development

Completed a Blockchain Development course with 30DaysCoding.

International Institute of Information Technology, Bhubaneswar

Technology in Computer Science and Engineering, Computer Science and Engineering

2023 - 2027

Grade: 8.66

Pursuing a Technology program in Computer Science and Engineering at International Institute of Information Technology, Bhubaneswar (2023–2027), with CGPA 8.66.