I will be your blockchain developer for custom smart contracts, defi dapps and web3
Blockchain Developer for DeFi Smart Contracts, Web3 dApps and DEX Development
About this Gig
I am a blockchain developer specializing in custom
blockchain development delivering secure, production-ready
smart contracts, DeFi dApps, and decentralized exchanges
on Ethereum, Arbitrum, and all EVM-compatible chains.
My services include:
Smart Contract Development I provide custom smart contract
development in Solidity covering ERC-4626, staking systems,
yield vaults, lending protocols, DAO governance, and DEX
integrations.
dApp Development Full-stack Web3 dApps combining robust
smart contract backends with functional frontends. From DEX
platforms and lending markets to staking dashboards,
delivered with wallet integration and seamless onchain data.
Decentralized Exchange (DEX) AMM-based DEX covering
liquidity pools, swap routing and EVM execution.
Additional services: NFT contracts with minting and royalty
logic, DAO token governance systems, blockchain payment
integration for gaming platforms, and complete DeFi protocol
architecture with offchain automation.
I bring production-ready experience as a blockchain developer
on EVM compatible chains handling real capital under real
market conditions.
Keep your assets and information safe
Cryptocurrency services focus solely on developing and programming. Never share sensitive information or private keys with others.
FAQ
What types of smart contracts do you develop?
ERC-20 tokens, staking, yield vaults, lending protocols, DAO governance, AMM-based DEX contracts, liquidity pools, and custom DeFi primitives, gas-optimized and audit-ready.
Can you build a complete DEX?
Yes. I build AMM-based and order book DEX platforms including liquidity pools, swap routing, price oracle integration, and frontend dApp. Custom DEX solutions on any EVM-compatible chain.
Do you write secure, audit-ready code?
Yes. Every contract follows security-first patterns — reentrancy protection, access control, and overflow handling. Full NatSpec documentation and Hardhat or Foundry test suite included on every delivery.
Which blockchains do you support?
Arbitrum, Ethereum, Base, Polygon, and any EVM chain. Production experience on Arbitrum including L2 gas optimization and sequencer-aware contract design.
What is included in the Premium package?
Multiple smart contracts, full dApp frontend, onchain indexer, offchain automation, node infrastructure, security review, full documentation, and handoff call for complete DeFi protocol builds.
2 reviews for this Gig
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
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U 
ukfinancialltd

United States
very fast very quick very inexpensive and a really nice guy
$50-$100
Price
2 days
Duration
Helpful?A alysalily12

Italy
Abdullah delivered exceptional work with precision and expertise. Great communication, dedication, and commitment to quality. Highly recommended!
Up to $50
Price
1 day
Duration
Helpful?
2 reviews for this Gig
| (2) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
U 
ukfinancialltd

United States
very fast very quick very inexpensive and a really nice guy
$50-$100
Price
2 days
Duration
Helpful?A alysalily12

Italy
Abdullah delivered exceptional work with precision and expertise. Great communication, dedication, and commitment to quality. Highly recommended!
Up to $50
Price
1 day
Duration
Helpful?
