Smart Contract Engineer specializing in decentralized systems across EVM and Solana.
I design secure smart contracts, scalable backend services, and full-stack architectures for production-grade Web3 applications.
- DeFi protocol design (AMMs, perps, liquidity mechanics)
- Smart contract development (Solidity, Rust, Anchor)
- Full-stack dApp engineering (on-chain → backend → frontend)
- Security, gas optimization, and audit-ready code
- Distributed systems and event-driven architectures
Smart Contract Engineer — Black Trade
Designed and audited core trading contracts. Improved protocol security, optimized gas usage, and implemented critical DeFi logic.
Backend Developer — Astrazen
Built scalable APIs, microservices, and Web3 data pipelines for user and protocol workflows.
Full Stack Developer — BndBox
Delivered production dApps with wallet integrations, blockchain event indexing, and real-time UI systems.
Publicly reported security findings:
-
Security Issue — Faucet State & Logic Handling
https://codehawks.cyfrin.io/c/2025-10-raisebox-faucet/s/387 -
Reentrancy Vulnerability — RaiseBox Faucet
https://codehawks.cyfrin.io/c/2025-10-raisebox-faucet/s/399 -
Orderbook Protocol — Logic / Edge-Case Vulnerability
https://codehawks.cyfrin.io/c/2025-07-orderbook/s/115
Smart Contracts & Web3
Solidity · Rust · Anchor · Metaplex · Foundry · Hardhat · Ethers.js · Wagmi
Backend
Node.js · Hono.js · Express · PostgreSQL · Redis · BullMQ · REST APIs
Frontend
Next.js · TypeScript · Tailwind CSS · Shadcn/UI
Infrastructure & Tools
Git · Docker · Cloudflare R2 · CI/CD · Auth & Email Systems
Researching and building:
- Advanced DeFi primitives
- Cross-chain messaging & rollup architectures
- Security analysis, testing frameworks, and gas-efficient patterns
- LinkedIn: https://www.linkedin.com/in/vishal-tiwari-102bb4294/
- Twitter: https://x.com/VishalT12094272
- Email: fantasydark001@gmail.com