Vitalii Kravchenko
Private message
Offer work
Dnepr,
Ukraine
available for hire
Rating
Skills and abilities
Programming
Services
Portfolio
- All works 8
- Content Management Systems 4
- Web Programming 1
- HTML & CSS 2
- Payment Systems Integration 1
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89 USD Optimization of OpenCart store speed from 22 to 74 points mobile
Content Management Systems
Online store for agrochemicals on OpenCart 3 (332 products). The client reported an issue: the site loads slowly, Google PageSpeed mobile — 22 points, the page weighed 4.2 MB.
I found a bug from the previous developer: the engine saved .jpg as .png, which made all thumbnails twice as heavy. Plus, a raw logo in the slider was 1.4 MB and Analytics was blocking rendering.
… I fixed the image.php engine, optimized the slider, and implemented lazy load GA through the analytics module.
**Result: mobile 22 → 74, desktop 98. Page weight -68% (4.2 MB → 1.3 MB).**
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312 USD WordPress + Elementor Pro — Landing page for AI agency
Content Management Systems
A fully functional one-page website for an AI business automation agency. The project is built on WordPress 6.5 + Elementor Pro — a modern dark design in SaaS/Tech style.
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45 USD Mobile version of the website
Content Management Systems
Restored the mobile version of the website after updating the Themify Ultra theme - eliminated horizontal scroll, fixed the display of all blocks in one column. The fix was implemented through a mu-plugin without modifying theme files, compatible with future updates.
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18 USD Plugin search editor on WP
Web Programming
- setting up and editing search logic
- fixing bugs in the plugin's operation
- improving the relevance of results
- adding filters (categories, price, attributes, etc.)
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115 USD Aqua Plants
Payment Systems Integration
Conducted diagnostics of the problem with PayPal after the CMS update
Fixed integration errors and restored correct payment functionality
Reconfigured the API and checked the connection with the payment gateway
Enabled payment acceptance through bank cards (Swedbank)
… Set up and tested the full payment cycle (checkout)
Checked functionality on different devices and browsers
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89 USD NØRIX — computer store
HTML & CSS
Conceptual design of an online electronics store in a dark style with cyan accents. Developed as a demonstration of UI/UX for e-commerce in the computer technology segment. Implemented: fixed sidebar with categories and icons, top navigation with login button, search bar, hero banner with gradient CTA, promotional cards for promotions, product grid, reviews section, newsletter subscription block, brand line, bottom comparison panel and cart. HTML5, CSS3 (Grid, Flexbox), Google Fonts (Space Grotesk + Inter).
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89 USD ARVÉL — Fitness platform (UI/UX + development)
HTML & CSS
Development of a website for an online fitness trainer from scratch
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89 USD ICON SHIFT — online store on OpenCart 4
Content Management Systems
Development of a fashion store from scratch on OpenCart 4.0.2.3.
Reviews and compliments on completed projects 19
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Real expert -
Craft master -
Quick answers -
First-class quality -
Nice communication -
High responsibility -
Great price -
Lightning fast
23 June
67 USD
Setting up free local product listings in Google Merchant Center turn-key
The work was done quickly and efficiently.
Excellent specialist! Quickly understood the issue of product blocking in Google Merchant Center. Fixed all technical errors (barcodes, titles, images), resulting in the products successfully passing moderation and receiving "Approved" status. Also provided clear consultation on the next steps for launching local advertising. Work was done professionally and on time. I recommend for collaboration!
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16 June
67 USD
Database of websites on WooCommerce
All good, thank you! Quick project completion.
15 June
67 USD
Bot
Everything at the highest level and on time!!!!
6 June
100 USD
Remove 404 errors from the website
An excellent specialist, the work was completed 100% turnkey! I am very satisfied with the collaboration with Vitaliy! The task of eliminating 11,000 broken URLs on Khoroshope and debugging Cloudflare was resolved promptly and at a high technical level. The specialist thoroughly understood the architecture of the site, found the exact source of the errors in the code, and uploaded a massive database of protective redirects. Communication was perfect, the final report and preventive instructions for our team were detailed to the maximum. A separate plus for initiative and providing a warranty period during the re-indexing of pages by the search engine. A true master of his craft, I recommend!
Very competent, explained everything and executed it.
29 May
78 USD
Add product pages to the ready website on Elementor Pro
Very quickly and qualitatively completed work. I recommend for collaboration. Pleasant communication, quick response, everything was great. Vitaliy is a pro.
Great job! Did everything quickly and efficiently.
27 May
178 USD
Improve the existing online store
Thank you! Fast, quality work, I recommend.
18 May
67 USD
WordPress
The work was done quickly and efficiently!
14 May
111 USD
Trading robot
The work was done quickly and efficiently. He responded to all inquiries promptly. He fulfilled requests without any issues. I recommend!
Thank you to the performer for the work done! The form works correctly! I recommend!
29 April
33 USD
Website advertising
The specialist did everything, explained everything very well, and I liked it a lot.
27 April
33 USD
One-page website
Very quickly completed work, everything I wanted without unnecessary explanations.
The task was completed quickly, efficiently, and fully in accordance with the requirements. I recommend.
21 April
45 USD
Parsing
Fast and quality work - I recommend!
This was a very quick and professional execution! I recommend for collaboration!
9 April
115 USD
Prestashop
Quickly and efficiently. Good knowledge. I recommend!!!
9 April
18 USD
Plugin search editor on WP
Great job - I recommend.
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Cleaning the site from hacking and external content
200 USD
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89 USD
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