Freelancer logo
How It Works
Browse Jobs
Log In
Sign Up
Post a Project
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.
Email successfully verified.
User Avatar
$45 USD / hour
Flag of RU
$45 USD / hour
It's currently 12:22 PM here
Joined June 13, 2021
0 Recommendations

Ekaterina S.

@sumtsova363

monthly-level-three.svg
5.0 (1 review)
5.0 (1 review)
0.7
0.7
$45 USD / hour
Flag of RU
$45 USD / hour
100%
Jobs Completed
100%
On Budget
100%
On Time
N/A
Repeat Hire Rate

BlockChain

1. BlockChain, expert. 2. A short time and clear result. 3. Web, Mobile knowledge. Working Example: - Built 10 android & web app based on flutter . - linked the data of the mobile application with the data of the site; - wrote PHP code with the functionality of reading, writing and loading data from a mobile and web application to the database; - created 2 graphs for data analysis with filters by date (daily, weekly, monthly and yearly). The charts included general data on user records, reproduced using line chart, bar chart & pie chart. Each point on the graph can be examined in detail; - optimized over 20,000 lines of code: PHP - 7500, Java for Android - 13000; - analyzed more than 4,000 thousand lines of a mobile application and optimized up to 1,500 lines, performance increased by 3.5 times; - worked on the security of user data: encryption (hashing) passwords using the base64_encode function; - introduced ideas for the development of the application: use a complex structure of SQL queries instead of repetitive code, use the Git Hub platform to merge different parts of the application.
Freelancer
Web Developers
Russian Federation

Contact Ekaterina S. about your job

Log in to discuss any details over chat.

Portfolio Items

Stable coin,  Real Tokens
Stable coin, Real Tokens
BlockChain WebSite
BlockChain WebSite
BlockChain Game
BlockChain Game

Reviews

Changes saved
Showing 1 - 1 out of 1 reviews
Filter reviews by:
5.0
€20.00 EUR
Solid effort and A+ work. Communicates well. Good luck with future projects!
Website Design
Graphic Design
CSS
PSD to HTML
HTML
User Avatar
Flag of NL John P. @wooblymedia
3 months ago

Contact Ekaterina S. about your job

Log in to discuss any details over chat.

Verifications

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

Certifications

preferredfreelancer-1.png Preferred Freelancer Program SLA 1 97%

Top Skills

HTML
1
PHP
C Programming
Java
JavaScript

Browse Similar Freelancers

Web Developers in Russian Federation
Web Developers
PHP Developers
C Programmers

Browse Similar Showcases

HTML
PHP
C Programming
Java
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 © 2021 Freelancer Technology Pty Limited (ACN 142 189 759)
There is no internet connection
Loading preview