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English
$
USD
I will develop smart contract, token, or custom dapp on ethereum polygon base bsc
Fullstack and Blockchain Developer, Founder of Dock30
Full-Stack & Blockchain Engineer | Founder of Dock30
420+ Fiverr projects | 5.0 ⭐ | Top Rated Seller
→ Built the platform behind a $40M+ AUM project
→ Token launches with $10M+ market cap
→ $300K+ fro...
Top Rated
Top Rated sellers are individually selected by Fiverr after meeting specific benchmarks for quality and service.
About this Gig
Looking for a blockchain developer who delivers production-ready code?
I'm a Top Rated Seller with 420+ projects, a perfect 5.0 rating, and I've built the smart contract infrastructure behind a $40M+ AUM project. My token launches have reached $10M+ market cap.
What I build on EVM chains:
- Smart contracts (ERC-20, ERC-721, ERC-1155, custom logic)
- Token creation and presale websites
- Staking, vesting and reward distribution contracts
- Crypto Casinos
- NFT minting sites, claims and reveals
- DeFi protocols and custom dApps
- Multi-chain deployment (ETH, Polygon, Base, BSC, Arbitrum)
Every project includes:
- Gas-optimized Solidity code
- Full test suite (Hardhat/Foundry)
- Frontend integration (React/Next.js + Wagmi/Ethers.js)
- Contract verification on block explorer
- 1 week free support after delivery
We do a Zoom call during the order to deploy contracts from your wallet, so you keep full ownership. I never ask for private keys.
Message me BEFORE ordering for a clear scope, timeline, and estimate.
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
Which blockchains do you support?
All EVM-compatible: Ethereum, Polygon, Base, BSC, Arbitrum, Avalanche, Optimism, ApeChain, and more.
Can you also build on Solana?
Yes! Check my dedicated Solana gig with 200+ reviews for Solana-specific work.
Do you handle the frontend too?
Yes, I'm full-stack. You get contract AND dApp interface, a complete working product.
What about gas optimization?
Every contract I write is gas-optimized using ERC-721A for batching and assembly where needed.
Custom project?
Most of my work is custom. Message me with details for an honest assessment, timeline, and quote.
Reviews
82 reviews for this Gig
| (81) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
E 
everestcoin
Repeat Client
United Kingdom
Roberto did an exceptional job with the contracts and patiently showed how every function works. More than happy to work with him again.
$200-$400
Price
5 days
Duration
Helpful?M 
marcus_alpha
Repeat Client
Romania
i’ve collaborated with Roberto many times, and every time the services have been of the highest quality. highly recommended!
Up to $50
Price
1 day
Duration
Helpful?M miranton
Turkey
Amazing to work with Roberto.
$2,000-$3,000
Price
12 days
Duration
Helpful?M marcus_alpha
Repeat Client
Romania
Excellent work again!
Up to $50
Price
2 days
Duration
Helpful?F forza_crypto
Repeat Client
United States
Swift turnaround time; easy to work with
$100-$200
Price
5 days
Duration
Helpful?
Reviews
82 reviews for this Gig
| (81) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
E everestcoin
Repeat Client
United Kingdom
Roberto did an exceptional job with the contracts and patiently showed how every function works. More than happy to work with him again.
$200-$400
Price
5 days
Duration
Helpful?M marcus_alpha
Repeat Client
Romania
i’ve collaborated with Roberto many times, and every time the services have been of the highest quality. highly recommended!
Up to $50
Price
1 day
Duration
Helpful?M miranton
Turkey
Amazing to work with Roberto.
$2,000-$3,000
Price
12 days
Duration
Helpful?M marcus_alpha
Repeat Client
Romania
Excellent work again!
Up to $50
Price
2 days
Duration
Helpful?F forza_crypto
Repeat Client
United States
Swift turnaround time; easy to work with
$100-$200
Price
5 days
Duration
Helpful?
