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I will create dapps and blockchain smart contracts
Expert Blockchain Engineer DeFi, Tokens, Dapps 100M On Chain
My work has helped generate over $100 million in on‑chain value across more than 70 projects. I’m Karim, a blockchain engineer based in the Netherlands.
I partner with two types of clients:
• Non‑te...
Level 2
Has met high performance criteria and has a proven track record for meeting client expectations.
About this Gig
Want to create the next unicorn web3 dApp? Looking to raise money through a token or NFT sale? Look no further!
I'm Karim and I've launched 50+ dapps with a combined value of $24M+. I will help you launch your dApps on Ethereum, Solana, Polygon, Avalanche, BASE, Binance smart chain, Arbitrum, Optimism or any other chain you want.
Feel free to reach out with your request and we can see what's required to build the platform. Here's some of the things I can offer:
- Any kind of tokens, coins & custom presales / launches
- Any kind of NFTs & custom launches
- Staking and vesting dapps for tokens and NFTs
- Casino based dapps like a lottery or web3 game
- Custom smart contracts and dapps
- Defi smart contracts and dapps
- Gaming smart contracts and dapps
Purpose:
Collectibles
•
DeFi
•
Gaming
•
Dao
•
NFT
•
Smart Contracts
Programming language:
Go
•
JavaScript
•
Python
•
Rust
•
Solidity
•
Node.js
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
Reviews
44 reviews for this Gig
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| (0) | ||
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
A angelikaaa04
Philippines
Working with Karim was a smooth experience from start to finish! Great communication, fast delivery, and top-tier Solidity skills. The contract works perfectly!
$800-$1,000
Price
2 weeks
Duration
Helpful?C 
carthago_studio
Repeat Client
Spain
Karim was fantastic, super professional, fast delivery, and the staking contract worked flawlessly. Highly recommended!
$1,500-$2,000
Price
9 days
Duration
Helpful?R rozient
Repeat Client
Sweden
Karim delivered exactly what I needed. The NFT verification bot works well and setup was super easy. Highly recommend!
$100-$200
Price
9 days
Duration
Helpful?Z 
zyntrex_studios
Kenya
Great experience working with Karim. Fast delivery, professional communication, and the smart contract was bug-free. Will definitely use again for future projects.
$200-$400
Price
8 days
Duration
Helpful?D 
dianavlasenko
Ukraine
Thank you Karim for the pleasant collaboration in launching my token on base
$400-$600
Price
3 weeks
Duration
Helpful?
Reviews
44 reviews for this Gig
| (44) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
A angelikaaa04
Philippines
Working with Karim was a smooth experience from start to finish! Great communication, fast delivery, and top-tier Solidity skills. The contract works perfectly!
$800-$1,000
Price
2 weeks
Duration
Helpful?C carthago_studio
Repeat Client
Spain
Karim was fantastic, super professional, fast delivery, and the staking contract worked flawlessly. Highly recommended!
$1,500-$2,000
Price
9 days
Duration
Helpful?R rozient
Repeat Client
Sweden
Karim delivered exactly what I needed. The NFT verification bot works well and setup was super easy. Highly recommend!
$100-$200
Price
9 days
Duration
Helpful?Z zyntrex_studios
Kenya
Great experience working with Karim. Fast delivery, professional communication, and the smart contract was bug-free. Will definitely use again for future projects.
$200-$400
Price
8 days
Duration
Helpful?D dianavlasenko
Ukraine
Thank you Karim for the pleasant collaboration in launching my token on base
$400-$600
Price
3 weeks
Duration
Helpful?
