# Smart Contract Development (Solidity)

> Custom smart contract development in Solidity. ERC-20 ERC-721 DeFi protocols and custom logic.


**Canonical URL**: https://faktorist.com/products/smart-contract-development-solidity-ok-factory-ukraine-okf
**HS Code**: OKF-SVC-018
**Category**: Agriculture & Food Systems
**Brand**: OK Factory
**Manufacturer**: OK Factory LLC
**Packaging**: Digital delivery
**Origin**: Ukraine
**Lead Time**: 30-60 days
**Minimum Order**: —
**Unit of Measure**: project



## Supplier

**OK Factory LLC** (Verified)
- Country: Ukraine
- City: Lviv
- Supplier code: SP-IM3G967G
- Profile: https://faktorist.com/suppliers/SP-IM3G967G


## Description

Professional smart contract development in Solidity 0.8.x for EVM-compatible blockchains (Ethereum Polygon Whitechain BSC Arbitrum). Services include token contracts (ERC-20 ERC-721 ERC-1155) staking and rewards mechanisms escrow and vesting contracts governance (DAO) contracts DeFi protocols and custom business logic. Full development lifecycle: specification writing implementation comprehensive testing (Hardhat + Foundry) gas optimization professional security audit preparation and mainnet deployment. All contracts use OpenZeppelin battle-tested libraries.




## Export markets

- Italy
- Germany
- France
- Poland
- Netherlands
- United States
- United Kingdom
- United Arab Emirates


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**Source**: Faktorist B2B Marketplace · https://faktorist.com/products/smart-contract-development-solidity-ok-factory-ukraine-okf
**Format**: Markdown export for LLM ingestion
**Last updated**: 2026-04-10