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$
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I will be your smart contract developer for solidity, web3 and blockchain
Blockchain Developer, Rust, Solidity, DeFi, Web3
I'm a Rust and blockchain developer who builds production-ready software that actually goes live. I specialize in Rust applications, Solidity smart contracts, DeFi protocols, Web3 applications, smart ...
Level 1
Has met certain performance criteria and shows strong potential in the marketplace.
About this Gig
I Build Secure, Scalable & Production-Ready Smart Contracts
Looking for an experienced smart contract developer for your next Solidity or Web3 project? Whether you're launching a protocol, building a dApp, or improving an existing blockchain product, I develop secure, scalable, and production-ready smart contracts tailored to your goals.
I help startups and businesses build reliable blockchain solutions across Ethereum, Base, Arbitrum, Polygon, BNB Chain, Solana, and other leading networks.
I can help you build:
- Smart contracts for EVM chains & Solana
- DeFi protocols, staking, lending, DEXs & vaults
- ERC-20, ERC-721, ERC-1155, ERC-4626 & custom tokens
- NFT collections, marketplaces, vesting & token launches
- dApps, wallet integrations & blockchain backends
- Bug fixes, upgrades, gas optimization & new features
- Smart contract migration, testing & deployment
- End-to-end blockchain solutions with documentation
Every project is built with security, performance, scalability, and long-term maintainability in mind.
Contact me before ordering to discuss your project and choose the right package.
Tools:
Truffle
•
Web3.js
Programming Language:
Solidity
Industry:
Finance
•
Supply chain
•
Healthcare
•
Real estate
•
Gaming
Keep your assets and information safe
Cryptocurrency services focus solely on developing and programming. Never share sensitive information or private keys with others.
My Portfolio
Other Blockchain Development & Solutions Services I Offer
FAQ
What blockchain networks do you support?
Ethereum, Base, Arbitrum, Polygon, Optimism, BNB Chain, Avalanche, zkSync, Scroll, Linea, Sonic, and Solana.
Do you develop both new and existing smart contracts?
Yes. I can build new contracts, improve existing code, fix bugs, optimize gas usage, or add new functionality.
Do you develop DeFi protocols?
Yes. I build staking, lending, vaults, DEXs, governance, token, and treasury systems.
Reviews
4 reviews for this Gig
| (4) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
L 
lekopepo
Germany
Really really good developer, loved the final product
$400-$600
Price
10 days
Duration
Helpful?B bernertails
United States
I went into this with Sabi having limited expectations. Just wasn't sure. The expectations I did have were immediately shattered - and then some. Knowledgeable and kind, with no sales push, Sabi provided more information than I could have hoped for. When I am ready to start this project, Sabi is the only choice to help me build it.
$50-$100
Price
1 day
Duration
Helpful?F fabioschwarz
Switzerland
Second order with him and no issues have come up. Great to work with him
$100-$200
Price
10 days
Duration
Helpful?F fabioschwarz
Switzerland
He was fast and repsonsive and the delivered code, especially the UI, went way beyond what I expected.
$600-$800
Price
2 weeks
Duration
S 
Seller's Response
Helpful?
Reviews
4 reviews for this Gig
| (4) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
L lekopepo
Germany
Really really good developer, loved the final product
$400-$600
Price
10 days
Duration
Helpful?B bernertails
United States
I went into this with Sabi having limited expectations. Just wasn't sure. The expectations I did have were immediately shattered - and then some. Knowledgeable and kind, with no sales push, Sabi provided more information than I could have hoped for. When I am ready to start this project, Sabi is the only choice to help me build it.
$50-$100
Price
1 day
Duration
Helpful?F fabioschwarz
Switzerland
Second order with him and no issues have come up. Great to work with him
$100-$200
Price
10 days
Duration
Helpful?F fabioschwarz
Switzerland
He was fast and repsonsive and the delivered code, especially the UI, went way beyond what I expected.
$600-$800
Price
2 weeks
Duration
S Seller's Response
Helpful?
