A comprehensive collection of production-ready smart contracts demonstrating expertise in DeFi protocols, DEX implementations, staking mechanisms, and token economics.
This portfolio showcases 522 Solidity contracts across 9 major categories, with a focus on production-grade code, security best practices, and innovative DeFi primitives.
A complete UniswapV2-style decentralized exchange implementation featuring:
- ChainSwapFactory: CREATE2-based pair creation with deterministic addresses
- ChainSwapRouter: Gas-optimized router with multi-hop swap support
- CswapSmartRouter: Hybrid router supporting both V2 and V3 Uniswap pools
- Security: Comprehensive reentrancy protection, input validation, and slippage protection
Key Features:
- Constant product AMM (x*y=k)
- 0.1% trading fees with protocol fee support
- EIP-712 permit functionality
- Fee-on-transfer token support
- Price oracle functionality
Lightweight AMM implementation with optimized gas usage and enhanced security features.
Advanced router implementation with volume-based fee optimization and MEV protection mechanisms.
Production-grade token launch platform with:
- Dynamic tax mechanisms
- Whitelist management system
- Automated liquidity provisioning
- Market cap-based launch triggers
- Integration with price oracles
Virtual liquidity bonding curve launchpad with:
- Pre-launch trading mechanics
- Referral system integration
- Fee distribution mechanisms
- Market cap calculations
Token factory and launchpad with signature-based verification and automated fee management.
Advanced dual-reward staking system featuring:
- Time-locked staking with boost multipliers
- Dual rewards (USDT dividends + VOX token emissions)
- Compounding functionality
- Dividend tracker integration
- Emergency withdrawal with penalties
Sophisticated staking protocol with:
- Multiple staking periods (30, 90, 180, 360 days)
- NFT-based boost multipliers
- Custom emergency withdrawal penalties
- Dividend distribution system
Flexible staking contract with:
- APR-based rewards
- Lock duration enforcement
- Exit penalties
- Compound functionality
Price oracle integration utilities for cross-chain price feeds.
Decentralized referral system with anchor management and commission distribution.
- Total Contracts: 522 Solidity files
- Categories: 9 major contract types
- DEX Implementations: 5 projects
- Staking Contracts: 9 projects
- Launchpad Systems: 10 projects
- NFT Projects: 7 projects
All contracts follow industry best practices:
- ✅ Reentrancy Protection: Comprehensive use of ReentrancyGuard
- ✅ Access Control: Role-based access control with Ownable patterns
- ✅ Input Validation: Extensive require statements and bounds checking
- ✅ Safe Math: Solidity 0.8+ built-in overflow protection
- ✅ Checks-Effects-Interactions: Proper state update ordering
- ✅ Slippage Protection: Minimum output amount validation
- ✅ Deadline Enforcement: Transaction expiration handling
- CREATE2 Deployment: Deterministic contract addresses (ChainSwapFactory)
- Hybrid Routers: Support for both Uniswap V2 and V3
- Fee-on-Transfer Tokens: Special handling for tokens with transfer taxes
- Virtual Liquidity: Bonding curve mechanics for pre-launch trading
- Dividend Distribution: Efficient reward distribution algorithms
- NFT Integration: ERC721 staking boosts and rewards
- Storage packing for struct optimization
- Batch operations for multiple transactions
- Efficient library usage for common operations
- Minimal external calls
smart-contracts-portfolio/
├── _Templates/ # Reusable contract templates
├── DEX_Swap/ # Decentralized exchange implementations
├── ERC20_Tokens/ # ERC20 token implementations
├── ERC721_NFTs/ # NFT contract implementations
├── Staking/ # Staking and reward contracts
├── Launchpad_Presale/ # Token launch infrastructure
├── Infrastructure/ # Utility contracts and tools
├── Locker_Vesting/ # Token locking and vesting
├── Rewards_Dividends/ # Reward distribution systems
└── Gaming/ # Gaming and lottery contracts
- Deep understanding of constant product formula (x*y=k)
- Liquidity provision and removal mechanics
- Price impact calculations
- Multi-hop routing algorithms
- Dynamic tax systems
- Automated liquidity management
- Buyback and burn mechanisms
- Dividend distribution algorithms
- Staking reward calculations
- Time-weighted average balances
- Compounding strategies
- Vesting schedules
- Solidity Versions: 0.8.0 - 0.8.26 (modern, secure versions)
- License: MIT/GPL-3.0
- Documentation: Comprehensive NatSpec comments
- Error Handling: Custom error types for gas efficiency
- Events: Comprehensive event emission for off-chain tracking
Many contracts in this portfolio have been:
- Deployed to mainnet
- Audited by security firms
- Battle-tested with real user funds
- Optimized for gas efficiency
This portfolio represents work across multiple projects and clients, demonstrating versatility in DeFi protocol development, token economics design, and smart contract security.
Built with ❤️ for the DeFi ecosystem