Architected and implemented the backend for MentAI, an intent-based AI system that combines Web3 education with execution, mapping natural-language queries into deterministic DeFi transactions across 12 EVM networks. Built LLM-powered intent parsing, MCP-orchestrated tool execution, and automated cross-chain workflows, complemented by a Next.js frontend with secure, Privy-based wallet authentication for seamless user interaction.

Led the development of the polkadot.js ecosystem — a critical suite of tools, libraries, APIs, and UI components that power seamless interaction with Substrate-based blockchains and are used by tens of thousands of developers and users. As the backbone of developer tooling in the Polkadot ecosystem, it serves as mission-critical infrastructure adopted by nearly every parachain and production dApp.

Led the cross-ecosystem migration of the Archisinal marketplace from Polkadot to Ethereum, architecting smart contracts, rebuilding the indexing layer, and refactoring the frontend to support EVM-based execution while maintaining feature parity and a seamless user experience.

Built Otro — a decentralized application (dApp) powered by Substrate Smart Accounts, enabling seamless Web3 interactions and identity abstraction. Otro enables multiple aliases for Polkadot Accounts. Users can manage their Smart Accounts by providing valid signatures from any of the registered aliases.

Designed and developed XCM Tracer from the ground up — a real-time tool for tracking XCM extrinsics across parachains in the Polkadot ecosystem. It offers simultaneous visibility into both source and destination data, eliminating the need to switch between multiple blockchain explorers.

Built the NFT Badges dApp as a proof of work for BlockDeep Labs for successful delivery of in-depth code reviews and advisory services to Polkadot ecosystem teams. These services, funded by the Polkadot treasury, ensured high-quality, secure, and efficient development — supporting the growth and innovation of Polkadot-based projects.

Designed and developed the BlockDeep website from the ground up, delivering a fully responsive and production-ready user experience.

Revamped UI & Boosted Trading Activity Led the complete overhaul of the Polkadex Orderbook dApp's UI, introducing an intuitive and seamless trading experience. This redesign resulted in a 120% increase in new user registrations and an 80% surge in trading activity, attracting 1,000+ new traders to the platform.

Facilitated Cross-Chain Interoperability Implemented the cross-chain bridge transfer system with Polkadot XCM capability, enabling users to seamlessly bring assets from other parachains to trade on the Polkadex Orderbook. This feature improved interoperability and contributed to a 40% increase in trading volume, enhancing liquidity and user accessibility.

Optimized Real-Time Data Fetching & Performance Developed frontend features to fetch and render real-time trading data from AWS AppSync using GraphQL APIs. This significantly improved data accuracy and responsiveness, enhancing the trading experience for nearly 2,000 active users. The optimizations led to faster load times, seamless order execution, and an overall more robust trading interface.

Enhanced Codebase for Performance & Maintainability Migrated the React codebase to Next.js, improving performance with server-side rendering and static generation. Introduced Tailwind CSS enabled components by replacing styled-components for better styling management, enhancing efficiency and consistency across the dApp.

Enhanced State Management & Wallet Integration Refactored state handling by replacing Redux Saga with React Context and TanStack Query, reducing complexity and improving maintainability. Additionally, resolved critical wallet integration issues, ensuring smooth cryptocurrency transactions and strengthening platform stability.

Enhanced Web App & Admin Panel Functionality Developed and maintained key features for the Expertrons web app and admin panel using React, Node.js, and MongoDB, improving functionality and user experience.

Advanced User Tracking & Engagement Boost Implemented advanced user tracking with Clevertap, integrating over 100 events and multi-channel notifications (Email, SMS, WhatsApp-push, Web-push), leading to a 50% increase in user engagement.

Optimized Database Integrity & System Performance Optimized database integrity by writing and executing scripts to clean, replace, and remove over 5,000 corrupted and duplicate records, enhancing system performance by 30% and reducing errors by 15%.

Cross-Functional Collaboration & Code Quality Collaborated with cross-functional teams to deliver projects on time, contributed to coding best practices, and demonstrated strong problem-solving skills in feature development.