KARANUPADHYAY
Final-year engineer from Delhi, building decentralized apps and AI solutions that make the process just as cool as the product.
Who am I?
Hey, I’m Karan 👋 — a curious mind who loves turning ambitious ideas into software that actually works (and scales). Whether it’s building decentralized platforms, AI-powered assistants, or full-stack apps, I enjoy the thrill of solving tough problems and making technology feel effortless for people who use it.
I’ve dabbled in quite a lot — from crafting a storage platform that refuses to go down (99.9% uptime!), to creating an AI email sidekick that slashes reply times by 85% 🚀, to leading hackathon teams where sleepless nights somehow turned into award-winning projects. Along the way, I’ve picked up skills in Java Spring Boot, React, Solidity, PostgreSQL, and more… but honestly, what excites me most is seeing something I built spark real impact.
Beyond my projects, I bring a strong foundation in problem-solving, demonstrated through a LeetCode Knight⚔️ rank (top 10% globally), 2⭐ at Codechef and over 1000+ coding challenges solved across platforms. With experience spanning internships, hackathons, and projects, I thrive in collaborative environments where innovation meets execution. I believe tech is about people — connecting, empowering, and making life a little smoother. So if you’re working on something exciting (or just love geeking out about great code), I’d love to connect.
Academic Journey
USICT, GGSIPU, Delhi
B.Tech in Information Technology
2022 - Present
Specialization - Software Engineering
Score - 8.3 CGPA | 9.1 SGPA
RSV Roop Nagar No. 4, Delhi
Senior Secondary School
2019 - 2021
Stream - Science(PCM) + CS
Score - 90 %
Technical Expertise
Specialized in full-stack development with extensive experience in Web2 and Web3 technologies
Programming Languages
Frontend & Backend
Web3 Technologies
DevOps & DevTools
Achievements & Contributions
Hackathons
- •Dev Challenge 2024 WINNER
- •Finalist: Fetch's AI Agent Hackathon IIT PATNA
- •Listed among top 100 Innovaters at REDACTED Hackathon2024
Project Experience
- •Built & contributed to multiple decentralized applications
- •Developed and audited secure, gas-optimized smart contracts
- •Extensive hands-on experience with Web2 & Web3 technologies
Coding Proficiency
- •Knight @LeetCode (Max Rating - 1868, among top 10%)
- •Solved over 1000+ problems across multiple coding platforms
- •Ranked among top 4% of Java leetcoders globally
Academics
- •Cumulative GPA: 8.3 | SGPA: 9.1
- •Proficient in Core & Advanced Java, Spring Boot & Microservices
- •Specialized in Data Structures and Algorithm analysis
Projects That Deliver
Building practical and scalable solutions across web2 and web3 ecosystems.
Asgard
Built a decentralized file storage platform that enables secure, permanent file uploads with blockchain-verified ownership. Users can store files on IPFS, manage access permissions through smart contracts, and share content without centralized control. Features automatic MetaMask integration, real-time gallery viewing, and smart access control. Delivered 2.1s transaction finality, <300ms file retrieval, and 7x lower transaction costs than Ethereum—demonstrating cutting-edge performance and true decentralized efficiency.
Mail-Minter
Built an AI-driven email response generator that crafts context-aware replies using Google Gemini via Spring AI. Designed for productivity-focused professionals, the system features tone customization, Gmail-native Chrome extension support, and cross-browser compatibility. Achieved <1.2s average response time, 100% Lighthouse UI performance score, and successfully processed 100+ email contexts simultaneously—demonstrating production-grade reliability and user-centric efficiency.
HoistHub
Built a decentralized crowdfunding platform that removes intermediaries using Ethereum smart contracts on the Polygon Amoy testnet. HoistHub provides end-to-end fund transparency, leveraging immutable on-chain transactions to ensure backer trust. Integrated MetaMask for wallet authentication, and deployed the contract via Hardhat with over 98% test coverage. Successfully executed 100+ verified testnet transactions with zero failure rate and sub-2s confirmation time.
BlockTalk
Built a decentralized chat application enabling fully encrypted, on-chain messaging using Solidity smart contracts and MetaMask authentication. Addressed the challenge of secure peer-to-peer communication by leveraging transaction-triggered message delivery on the Polygon Amoy testnet. Processed 250+ verified message transactions across 30+ test wallets with zero data loss. Recognized as the winning project at Dev Challenge Hackathon 2024 for pioneering secure Web3 messaging.
Karan Upadhyay Portfolio
A vibrant, motion-rich portfolio built with Next.js and TailwindCSS — designed to impress recruiters and vibe with devs. It’s where Material Design meets modern frontend craft. Scroll through to see my projects, skills, and personality wrapped in clean animations and thoughtful UX. It's not just a portfolio — it's my digital handshake.
Work Experience
Project roles and Responsibilities.