kirillzaynutdin

Blockchain developer with 4+ years of commercial Web3 experience and 8+ years of software engineering experience.

I specialize in Solidity development for EVM-compatible blockchains, smart contract architecture, testing, deployment, and backend integration. My commercial experience includes building production smart contracts, cross-chain infrastructure, backend services, and developer tooling.

My recent work focused on developing and maintaining Solidity smart contracts for cross-chain protocols, writing comprehensive Hardhat test suites, deployment scripts, and backend services using NestJS to monitor blockchain events and interact with smart contracts.

Beyond development, I have over 7 years of teaching experience, where I designed and delivered courses on Blockchain development, C++, Python, Linux, and Discrete Mathematics. I created a complete Web3 developer training program and taught more than 100 live lessons, which significantly strengthened my ability to explain complex technical concepts and review other developers' code.

My primary interests are smart contract security, protocol architecture, DeFi, cross-chain systems, EVM internals, and blockchain infrastructure. I enjoy designing reliable systems, reviewing code, improving security, and solving challenging engineering problems.

Core skills:

Solidity (EVM, Tron)
Smart Contract Security
Hardhat
ethers.js
TypeScript / JavaScript
Node.js / NestJS
Cross-chain protocols
DeFi
Smart Contract Testing
Gas Optimization
PostgreSQL
Git

Currently, I'm looking for opportunities in blockchain development, smart contract security, protocol engineering, or blockchain infrastructure, where I can contribute both as an engineer and as a technical leader.