viacheslav

Blockchain & Smart Contract Developer (Solidity)

Blockchain Developer specializing in Solidity smart contracts for EVM-compatible chains including Ethereum, Polygon, Arbitrum, and Binance Smart Chain. Transitioned to Web3 after a decade-long career in shipbuilding engineering, bringing analytical precision and collaboration skills in international teams. Strong background in DeFi, NFTs, governance mechanisms and gas optimization. Proven ability to architect complex systems, conduct thorough code reviews, and deliver production-ready solutions in fast-paced environments. Experience includes implementing upgradeable contracts (TransparentProxy, BeaconProxy), integrating flash loans, oracles, and multi-signature governance systems. Combines engineering discipline with blockchain innovation.


Experience: 3 years

Yearly salary: $62,000

Hourly rate: $35

Nationality: πŸ‡ΊπŸ‡¦ Ukraine

Residency: πŸ‡ͺπŸ‡Έ Spain


Experience

Solidity Developer
Primex Labs
2023 - 2024
Developed upgradeable smart contracts using TransparentProxy and BeaconProxy patterns. Integrated flash loans and DEX aggregators (Paraswap, Enso). Implemented Chainlink and Pyth price oracles for on-chain accuracy and data validation. Designed dynamic fee systems based on gas prices. Built and maintained deployment/upgrade scripts supporting multisig and timelocks.
Solidity Developer
1000GEEKS
2022 - 2023
Built and tested ERC20, ERC721, and ERC1155 smart contracts for internal projects and test assignments. Created English/Dutch auctions, Time Locks, Multisig Wallets, and Crowdfunding contracts. Developed Majority Judgment Voting system and dual governance mechanisms.

Skills

crypto
hardhat
javascript
node
solidity
english
russian
spanish
ukrainian