Website: Jintu Kumar Das

🚀 Senior Software Engineer @ Shardeum | Distributed Systems | Backend Engineering | Blockchain

⚡ Obsessed with performance, scalability, and reliability — from tuning CPU math libraries at AMD to working with sharded blockchain infrastructure at scale.

• 🏗 4+ years of experience building high-performance distributed systems.
• 🔗 Key contributor to Shardeum’s autoscaling L1 blockchain, scaling its mainnet to millions of transactions.
• 🧑‍💻 Ex-AMD engineer — optimized CPU math libraries used by scientific applications, earning the Director Spotlight Award and 2× Extra Mile Awards.
• 🤖 Passionate about the intersection of AI agents + blockchain, building tools for autonomous DeFi and on-chain payments.
• 👥 Mentor, collaborator, and hackathon builder — with multiple global wins in Web3 and AI agent competitions.

📫 Reach me: jintukumardas@gmail.com

• Celestia: Contributed to talis
• Ethereum: Contributed to consensus-specs
• Filecoin: Contributed to go-state-types
• Hyperledger: Contributed to besu
• Juno: Contributed to docs
• Shardeum: Contributed to shardeum, archiver, core and 19 other repositories
• Shardus: Contributed to relayer-collector

• Leetcode: jintudas - Solved close to 100 problems and participated in global competitions. Casually Active.
• GeeksForGeeks: jintudas - Solved more than 100 problems and maintained POTD streak of 50+ days. Inactive.

• Optimizing Matrix Multiplication with AVX on AMD: Lessons from My Time at AMD

• Reducing Dimension for Remote Sensing Image Dataset - IEEE, 2022
• A Graph-Based Band Selection Method for Hyperspectral Images Using Correlation Matrix - Springer, 2021

Core Expertise: Distributed Backend Systems · Blockchain Infrastructure · Performance Optimization · Multithreading · API Engineering
Languages: JavaScript · TypeScript · Python · Java · C/C++ · Go · Rust
Frameworks & Tools: Node.js · Web3.js · Ethers.js · React · Docker · Jenkins · GitHub Actions
Databases/Cloud: MySQL · PostgreSQL · MongoDB · AWS
Systems: Linux · Debugging (GDB, Valgrind, perf)

• 🔹 LedgerMind – Secure on-chain USDC payment intent system for AI agents with programmable constraints & audit trails.
• 🔹 Mirage – Decentralized transactional email with USDT/USDC transfers and encrypted messaging.
• 🔹 Quasar – AI-powered cross-chain DeFi platform with gas optimization & multichain interoperability.

• 🥈 Vyper/Polygon AI Agent Hackathon – 2nd Place (2025) 🔗
• 🌟 Committer of the Month – Shardeum (2025) 🔗
• 🥈 ETHGlobal Singapore – NounsDAO Expand Public Goods (2024) 🔗
• 🥈 Rust on Linera Hackathon – Best Gaming App (2024) 🔗
• 🏅 Rust on Linera: Spring 2024 Hackathon - Honorable Mention (2024) 🔗
• 🏅 V0RTEx 01 | A Scroll Hackathon – 3rd Place + Covalent Bounty 🔗
• 🏅 Director Spotlight (2 times) & Extra Mile (2 times) Awards – AMD (2021–23)

⚡ If you’re building systems that need to run faster, scale bigger, or break less — let’s connect.