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$30 USD / hour
Flag of POLAND
warszawa, poland
$30 USD / hour
It's currently 9:47 PM here
Joined July 23, 2021
1 Recommendation

Andrzej K.


5.0 (15 reviews)
$30 USD / hour
Flag of POLAND
warszawa, poland
$30 USD / hour
Jobs Completed
On Budget
On Time
Repeat Hire Rate

Professional Blockchain Deveploper

I am a professional Fullstack & Blockchain developer with rich experiences of developing smart contract, Defi, NFT marketPlace, Play-to-earn game, crypto platform, marketPlace, DEX. I've read your project detail carefully and I can complete your project perfectly in time with high quality. We can discuss more about your project via the chat. I sincerely desire that your project will be successed and I will do my best. ✓ Smart Contract, Defi, in Ethereum, Solana, Avax, Wax, Algorand, Polygon, BSC, Polkadot ✓ DApps development ; Solidity/Rust, Smartpy, web3.js/ethers.js ✓ Solidity, Rust, Golang, C/C++ ✓ Python, Django, Flask, FastAPI, web2py, Rocket, MySQL, PostgreSQL MongoDB, NoSQL, React.js, Javascript, ✓ Ruby, Ruby on Rails, MVC, Mocking, RestAPI ✓ Java, Spring Boot, Hibernate, MVC, DI, IoC, ElasticSearch, Kafka, JavaFX, UnitTest. ✓ SQL and NoSQL (MySQL, MSSQL, PostgreSQL, InfluxDB, MongoDB), Redis ✓ Sytems Administration (DevOps, Docker, Apache, Nginx, Heroku)
Freelancer Web Developers Poland

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Portfolio Items

The e-Commerce
React / CodeIgnitor / AWS / MySQL
The app of React Native / Flutter
React Natvie / Flutter
This site is made by React & Node.js.
React + Node.js
This is social website made by Laravel and Vue.js
Laravel & Vue.js
Professional web site
Angular Fashional Web site
This website offers various loose leaf teas for slimming, detox, and more. Experience the health benefits of buying loose leaf tea from the online tea shop, Physique Tea.
PHYSIQUE Tea - Body Shaping Beverage selling website


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Showing 1 - 5 out of 15 reviews
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$30.00 USD
He took care of the work, were other coders didn't do. The final result is high quality.
PHP JavaScript Website Design WordPress HTML
+1 more
Flag of Gianluca B. @azien
5 months ago
$150.00 CAD
Great work with Adnrzej, I strongly recommend him for any professional level development for WordPress. His expertise in this areas is very high.
PHP Website Design WordPress CSS HTML
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Flag of Alex H. @Alex8020
5 months ago
$25.00 USD
This freelancer work is mind blowing. He produced top quality. He did a good job. He moved my footer off my old web site onto, his eye for detail is stellar. His work is top notch. He is reliable. He is honest. He works very hard. I highly recommend him for wordpress work. This guy is the man for your company. You have to hire him. He is so good at his job. I am happy with the results. It was little better than expected. The new footer looks just like my old one.
PHP WordPress CSS Full Stack Development WordPress Design
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Flag of Jeremiah F. @nathanjaeger
5 months ago
£30.00 GBP
good job, on to new work!
PHP Website Design WordPress CSS HTML
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Flag of Gareth M. @sixtysixdesign
6 months ago
€30.00 EUR
For a quite complicated issue, Andrzej succeeded in sorting one of the problems. He took the time to test and try to fix the issue and has good communication skills. The other one was a bit of a hassle but, in the end, the site works ok.
PHP JavaScript WordPress CSS HTML
User Avatar
Flag of Vladimir A. @Vladfrance
6 months ago

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Top Skills

HTML 13 PHP 11 JavaScript 11 WordPress 8 React.js 4

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