Freelancer logo How It Works Browse Jobs Log In Sign Up Post a Project
EXPLORE
Blockchain C Programming PHP Smart Contracts Software Architecture
Profile cover photoundefined
You're now following .
Error following user.
This user does not allow users to follow them.
You are already following this user.
Your membership plan only allows 0 follows. Upgrade here.
Successfully unfollowed user.
Error unfollowing user.
You have successfully recommended
Error recommending user.
Something went wrong. Please refresh the page and try again.
Email successfully verified.
User Avatar
$40 USD / hour
Flag of SERBIA
belgrade, serbia
$40 USD / hour
It's currently 7:14 AM here
Joined June 2, 2022
0 Recommendations

David J.

@JankoDevelopment

monthly-level-three.svg
5.0 (4 reviews)
3.2
3.2
$40 USD / hour
Flag of SERBIA
belgrade, serbia
$40 USD / hour
100%
Jobs Completed
100%
On Budget
100%
On Time
33%
Repeat Hire Rate

Professional Blockchain, FullStack Expert

Blockchain projects, embedding projects, full stack projects. Expertised in solidity for ETH, BSC, FANTOM, POLYGON, AVALANCHE and rust for Solana, Cosmos. - Tokenomics of ERC20(DEFI, DEX, Rebase, Reflection, Safemoon, Inflection) - Solutions of ERC721/ERC1155(Minting, Marketing, P2E Games) - Usecase of web3(Tracking transaction, Arbitrage/Frontend BOT) - Creating private blockchain networks Highly skilled in Python, Node, PHP, React Js, React Native, Angular, VueJS, MySql, Mongodb, WordPress, WooCommerce, Mobile Application, Firebase, Laravel, UI/UX design (Web + Mobile Apps), HTML5, CSS3, Bootstrap 4, Jquery, Ajax, etc - 5 years of C/C++, Linux Kernel and driver. - Perfect firmware. - Simple design with high performance. Why award me? - 100% clean code. - Supports all browsers. - Supports all devices, such as - Android, iPhone, iPad, laptop, desktop. - 100% pixel perfect. - Over 5+ years of experience - 100% client satisfaction. - Excellent customer and technical support. - Time frame maintain 100% I Will do my best to lead your project to success. The best quality, fastest pace, most accurate timeline and courtesy after service are guaranteed to clients.
Freelancer PHP Developers Serbia

Contact David J. about your job

Log in to discuss any details over chat.

Portfolio Items

Web3 can provide us various utility.
Web3 Auth!
Rust is the most programming language!
Rust Projects
You can earn!
Successful DeFI
Trading Bot will give you income by time pass, 24/7.
Trading Bot

Reviews

Changes saved
Showing 1 - 4 out of 4 reviews
Filter reviews by: 5.0
$240.00 USD
Never better than this. Perfect! I will hire him again!
Blockchain Ethereum Solidity Smart Contracts
User Avatar
Flag of Oleh S. @olehsvirskyi
2 days ago
5.0
$25.00 USD
Thank you for your work.
C Programming Algorithm Software Architecture CUDA C++ Programming
F
Flag of Dem T. @freelancesmartbo
4 months ago
5.0
$50.00 USD
great work hope to work with you again. thank you. A+++++++++++++++
PHP Golang Blockchain Ethereum Smart Contracts
User Avatar
Flag of Wasala Arachchige Lahiru B. @lahirussandaruw2
4 months ago
5.0
$85.00 USD
Great work. Delivered on time. A+++++++++
PHP Website Design Software Architecture MySQL HTML
User Avatar
Flag of Wasala Arachchige Lahiru B. @lahirussandaruw2
4 months ago

Contact David J. about your job

Log in to discuss any details over chat.

Verifications

Preferred Freelancer
Identity Verified
Payment Verified
Phone Verified
Email Verified
Facebook Connected

Top Skills

PHP 2 Software Architecture 2 Blockchain 2 Smart Contracts 2 C Programming 1

Browse Similar Freelancers

PHP Developers in Serbia
PHP Developers
Software Architecture Developers
Blockchain Developers

Browse Similar Showcases

PHP
Software Architecture
Blockchain
Smart Contracts
Previous User
Next User
Invite sent successfully!
Registered Users Total Jobs Posted
Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)
Copyright © 2022 Freelancer Technology Pty Limited (ACN 142 189 759)
Loading preview
Permission granted for Geolocation.
Your login session has expired and you have been logged out. Please log in again.