Solidity Smart Contract Developer | DeFi & Web3 SpecialistSolidity Smart Contract Developer | DeFi & Web3

Junior Blockchain Developer specializing in Solidity smart contract development and DeFi protocols.
I'm passionate about building secure, production-ready smart contracts for the Ethereum blockchain.
My expertise includes:
✓ Solidity programming and contract architecture
✓ ERC-20 token development and custom implementations
✓ DeFi systems: staking, vesting, treasury management, crowdsales
✓ Security best practices (ReentrancyGuard, Pausable patterns)
✓ Testing & deployment with Hardhat and Foundry
✓ Integration with OpenZeppelin libraries
✓ Cross-chain compatibility and multi-chain deployments
Currently building a comprehensive DeFi ecosystem project from scratch to demonstrate production-level capabilities. Experienced with complete development workflows: writing, testing, auditing, and deploying smart contracts.
Looking to collaborate on: token contracts, DeFi protocol development, smart contract upgrades, and blockchain infrastructure projects.
Languages: English, Spanish, Ukrainian

Work Terms

Hours of Operation: Flexible. Available for both full-time and part-time engagements.
Communication: Clear task specifications and regular updates preferred. Available via Upwork messaging, email, or Slack. Operating in UTC+2 timezone (flexible for overlap).

Project Approach:
- Initial consultation to understand requirements and project scope
- Regular progress updates and code reviews
- Clean, well-commented, audit-ready code
- Full documentation and deployment support
- Open to revision rounds to ensure quality

Preferred Projects:
- Smart contract development and optimization
- DeFi protocol implementation
- Token and ecosystem design
- Integration, testing, and multi-chain deployment

Let’s discuss your blockchain development needs!

Attachments (Click to Preview)