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$
USD
I will create and test smart contracts for your project
Code and Conquer
Full-Stack Blockchain Developer | 3+ Years | 40+ Projects Delivered
I build production-ready Web3 applications: DeFi protocols, NFT marketplaces, Solana token launches, trading bots, and custom smart...
Level 1
Has met certain performance criteria and shows strong potential in the marketplace.
About this Gig
Looking for a blockchain developer who builds secure smart contracts AND complete dApp frontends? You've found the right expert.
I'm a full-stack blockchain developer with 3+ years building production-ready dApps. I deliver complete solutionssmart contracts + beautiful UIs that users actually love.
WHAT YOU GET:
SMART CONTRACTS:
- Secure Solidity code with best practices
- Gas-optimized to save costs
- Comprehensive testing & security patterns
- Multi-chain deployment
FRONTEND:
- Modern React/Next.js interface
- Multi-wallet integration (MetaMask, WalletConnect)
- Real-time blockchain data
- Responsive design (mobile/tablet/desktop)
- Transaction handling & error management
TECH STACK:
Solidity, Hardhat, Foundry, React, Next.js, TypeScript, Ethers.js, TailwindCSS, The Graph, IPFS, (Custom tech stack available on demand)
NETWORKS:
Ethereum, Polygon, BSC, Arbitrum, Optimism, Avalanche, Base, zkSync (all evm networks, see my other gig for solana)
️ MESSAGE ME FIRST to discuss your project!
Fast delivery - Secure code - Quality guaranteed
Keep your assets and information safe
Cryptocurrency services focus solely on developing and programming. Never share sensitive information or private keys with others.
Other Blockchain Development & Solutions Services I Offer
FAQ
Do you build both the smart contracts AND the frontend?
Yes! All packages include complete dApp development - smart contracts + frontend interface. You get a fully functional application, not just backend code.
Which blockchains do you support?
I work with all EVM-compatible chains: Ethereum, Polygon, BSC, Arbitrum, Optimism, Avalanche, Base, Fantom, and more. Multi-chain support is available in Standard and Premium packages.
Can you integrate with my existing smart contracts?
Absolutely! I can build a frontend for your existing contracts or integrate new contracts into your current system. Just share the contract addresses and ABIs.
Do you provide smart contract audits?
Premium package includes a security audit report. For standalone audits of existing contracts, please message me for a custom offer.
Can you deploy to mainnet?
Yes! Standard and Premium packages include mainnet deployment support with contract verification on Etherscan/BSCScan. Basic package covers testnet only, but mainnet deployment can be added for $50.
What about gas fees for deployment?
You'll need to provide gas fees for deployment. I'll give you an estimate beforehand. Deployment services (configuration, verification, testing) are included in the price.
Do you provide the source code?
Yes! You receive complete, well-documented source code for both smart contracts and frontend. Full ownership and rights transfer to you upon delivery.
Can you help after the project is completed?
Yes! Standard package includes 2 weeks support, Premium includes 1 month. Extended support packages are available. I'm also available for future updates and maintenance.
What if my project is more complex than the packages?
No problem! Message me with your requirements and I'll create a custom offer tailored to your specific needs. Complex projects are my specialty.
Reviews
12 reviews for this Gig
| (10) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (1) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
W 
wholioltd
United Kingdom
amazing working with salman as always!
$100-$200
Price
6 weeks
Duration
Helpful?N 
neotheone31
South Korea
Salman delivered EXEMPLARY work in blockchain development, showcasing incredible code expertise and a keen attention to detail. His professionalism, paired with a polite demeanor and outstanding delivery time, made the collaboration seamless. Thank you for doing a perfect job, Salman. I will entrust you with the work again next time. 🙌
$50-$100
Price
7 days
Duration
Helpful?W wong1833
Malaysia
He went disappeared without further notice and couldn’t contact him in anywhere, he said he done the blockchain part but it was a total mess and not professional at all. Was telling me everything is working fine until very last minute he went disappeared. Always late to response like half a day and this is really unprofessional at all.
$100-$200
Price
2 weeks
Duration
Helpful?W wholioltd
United Kingdom
Great Dev to Work With
Up to $50
Price
4 days
Duration
Helpful?K 
karameleon0112
Mexico
Excellent work and great communicator.
Up to $50
Price
6 days
Duration
Helpful?
Reviews
12 reviews for this Gig
| (10) | ||
| (1) | ||
| (0) | ||
| (0) | ||
| (1) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
W wholioltd
United Kingdom
amazing working with salman as always!
$100-$200
Price
6 weeks
Duration
Helpful?N neotheone31
South Korea
Salman delivered EXEMPLARY work in blockchain development, showcasing incredible code expertise and a keen attention to detail. His professionalism, paired with a polite demeanor and outstanding delivery time, made the collaboration seamless. Thank you for doing a perfect job, Salman. I will entrust you with the work again next time. 🙌
$50-$100
Price
7 days
Duration
Helpful?W wong1833
Malaysia
He went disappeared without further notice and couldn’t contact him in anywhere, he said he done the blockchain part but it was a total mess and not professional at all. Was telling me everything is working fine until very last minute he went disappeared. Always late to response like half a day and this is really unprofessional at all.
$100-$200
Price
2 weeks
Duration
Helpful?W wholioltd
United Kingdom
Great Dev to Work With
Up to $50
Price
4 days
Duration
Helpful?K karameleon0112
Mexico
Excellent work and great communicator.
Up to $50
Price
6 days
Duration
Helpful?
