Andrii Kovalenko
Private message
Offer work
Kyiv,
Ukraine
available for hire
Rating
CV
Greetings!
I use in my work next stack:
- Git
- Docker
- PHP/JS
- MySQL
- OOP/Functional style
- DRY/anti-DRY/KISS/SOLID/anti-SOLID/GRASP/Design patterns (GoF)
Skills and abilities
Programming
- Content Management Systems
-
Data Parsing
from 34 USD for hour
-
Databases & SQL
from 34 USD for hour
-
Javascript and Typescript
from 34 USD for hour
-
PHP
from 34 USD for hour
-
Web Programming
from 34 USD for hour
Services
-
Cybersecurity & Data Protection
from 34 USD for hour
-
Website Development
from 34 USD for hour
- Website Maintenance
Administration
-
DevOps
from 34 USD for hour
-
Linux & Unix
from 34 USD for hour
- Software & Server Configuration
Portfolio
-
Information website
PHP
Theme: Steel for construction.
The following work has been completed:
- creation of 20+ ACF/Gutenberg blocks. Each block has options set by the ACF plugin. The list of blocks created in this way:
… • Slider
• Call to action
• Content
• Icons
• Services
• Testimonials 1/2/3
• Instagram widget
• Icons 1/2
• Numbers 1/2
• Miscellaneous
• Industries-we-serve
• Map
• We offer
• Header
• Footer
- assembled pages of the site using the created blocks
- created pages About/Contacts/Our Services/Our Products/...
- the site has a sufficiently complex file selection form that displays on the fly + data entry
- both mobile and desktop versions of the site have been created
-
Virus removal
PHP
Website engine: WordPress
The following work has been completed
- checksums of the core and plugins have been verified using WP CLI. Detected virus files have been removed in this way
… - plugins/core have been updated
- unlicensed plugins without a key have been replaced with similar open-source ones
- access to theme/custom plugin files has been restricted using .htaccess directives
- a check has been added to theme/custom plugin files to see if a certain WordPress constant is set; if not set, exit the program,
- other directories have been scanned, including wp-content/uploads for the presence of php files.
- the theme/custom plugins have been checked for SQL injection/XSS vulnerabilities and others. For example, wpdb->prepare, esc_html/esc_attr have been added
- WordPress cryptographic data has been replaced
-
Import of goods
PHP
Website theme: metalworking
The following tasks have been completed:
- imported 40,000+ products from an xlsx file.
… - consideration of language versions of products, products automatically translated into Russian/Ukrainian languages
- taken into account that each product has a set of characteristics that depend on the product category.
- imported categories and characteristics of products linked to the category
- imported and automatically optimized product images
- corrected certain errors during import. For example, some imported products had extra spaces or extra characters, such as incorrect translations. Such products have been normalized and imported in the correct form
- scripts for normalization/import have been written
-
Online test
PHP
The functionality of the test includes a set of questions, such as:
- How often do you exercise
- Do you follow a specific diet
- Do you take certain vitamins
… and similar ones
The logic of the subsequent questions depends
on the answers to the previous ones.
At the end of the test, the user is shown
a recommendation on which vitamins to take based on
their answers to the questions.
User data and their answers
are stored in the admin panel.
In the admin panel, there is an option
to sort/search users by their answers
and to export the search results of users to an xlsx file.
-
Wheel of Fortune/drum
Javascript and Typescript
When the user presses the play button, the drum starts to spin rapidly until it slows down, and after stopping, the user is awarded the bonus that has been revealed.
Among the possible bonuses:
- a free item added to the order
… - a promo code for a 20% discount (2 slots on the drum)
- a promo code for a 10% discount (2 slots on the drum)
- a promo code for free shipping
and others
The next step is for the user to provide their email, and a promo code for the corresponding bonus is sent to the specified email.
To receive the bonus - this promo code can be entered when placing the order.
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Accelerating the website to the green zone on Pagespeed
PHP
Initial speed metrics:
20 mobile/52 desktop
Final speed metrics:
… 96 mobile/99 desktop
Completed work
- inline CSS
- JS bundling for each page
- removal of unused CSS
- minification/compression
- removal of unnecessary fonts
- image optimization, providing images of different sizes depending
on device size/density
- enabling page caching
- creating image sprites
...
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Tour booking functionality
PHP
- the ability to choose a 1-day or 2-day tour type
- the ability to choose a group/private tour type
- the ability to choose a tour type (sherpa/helicopter/basic....)
- the ability to choose a calendar date. The calendar highlights the selected tour type accordingly
… - the ability to provide contact details
- navigation between steps. Step selection of tour/contact details
- the ability to specify the number of tourists
- saving the state of the calendar and options
- calculation of the total cost on the fly
- payment integration
Admin panel
- the ability to set active/inactive dates for each tour type
- saving applications with entered data in the admin panel
-
Cost Calculation Calculator
Javascript and Typescript
Functionality includes the following capabilities:
- a form that appears in a modal window when clicking on "Calculate Cost"
- the ability to change the length with a slider
- the ability to change the material
… - calculation and display of the cost on the fly according to a given formula
- the ability to specify an address/contact details
- saving applications in the admin panel
- sending applications via email
- pixel perfect layout of the calculator form
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Bank card design constructor
Javascript and Typescript
Functionality includes the following capabilities
- change the material of the map
- change the color of the map
- add a custom image, scale/rotate/transform such an image
… - image burning effect on the map according to the selected material
- ability to add/move custom text
- ability to change the text size
- ability to place orders with such maps
Admin panel
- display of the generated image of the corresponding map
- display of the cost
- display of the map parameters
-
WordPress plugin for formatted printing
PHP
A plugin that allows the user to choose their own images, crop/scale/rotate them, in the corresponding selected format frame. The user has the option to select a format frame from the predefined 9x9, 9x13, 10x15, 13x18...
Accordingly, the cost of the order is calculated on the fly and displayed to the user.
… After creating such an order from the constructor by the user in the admin panel, the corresponding photo for printing is available.
Reviews and compliments on completed projects 37
25 May
34 USD
Acquiring
all the work was done, as always, professionally. thank you very much.
31 March
34 USD
Edits on the website
Thank you, everything was fast, quality, and for reasonable money. As always, in the end.
17 May 2025
20 USD
Continuation of parsing
The performer did not let down, did everything qualitatively and according to the technical specifications. Thank you for the cooperation.
3 April 2025
94 USD
Optimization of the main page
The project was completed with quality, Optimization has increased to the planned target.
21 February 2025
94 USD
Making changes to the website according to the specifications
I am satisfied with the cooperation, the specialist is good.
3 February 2025
96 USD
According to the technical specification, carry out work on the website.
The work was done well with minimal corrections.
18 December 2024
37 USD
Парсинг+парсер+оновлення
The performer has a great understanding of the essence of the task. All edits and requests were made quickly and efficiently. I recommend.
17 August 2024
45 USD
Website, security + graphics
wonderful performer. I have been working for 4 years - always on time, quality and inexpensive
4 May 2022
100 USD
Обновление сайта
Everything was done how I wanted, Andrii is a professional at what he’s doing. Great job very satisfied.
12 April 2022
47 USD
Thermolux. Part 3
It’s good to have a responsible person. If you’re looking for a reliable executive, I strongly recommend Andrea, he will do everything and prepare the necessary instructions. One thing, book time for yourself more than agreed, and then there will not be any unpleasant moments.
24 March 2022
45 USD
Frontend processor on WP. Stylistic directions
Andrei is a very responsible designer. One of the few who do quality and lead you to the beginning to the end. Sometimes it can be overwhelmed with a rating, but quality remains in the first place. We continue cooperation.
19 March 2022
100 USD
Сео этап 1
Very well job done! All he rose all the performance numbers to the highest, and the website is now very fast running. He also speaks very well English so it’s very easy to communicate with him.
24 February 2022
123 USD
WP. Імпорт товарів. Етап 1.
Although the deadlines were broken, Andrew led to the end of everything that was discussed.
It does not disappear, and is constantly in contact.
Let us try further cooperation.
by P.S. I will close the project earlier in connection with the current situation in the country.
16 November 2021
12 USD
Перенести на хостинг сайт
Не одноразово працювам з Андрієм. Добре виконує свою роботу. Дякую
| Personal | Response review
29 January 2021
23 USD
Adding graphs to the WordPress page
Great, I highly recommend the supervisor! The task related to mathematical analysis and forecasting on the basis of historical data - Andrei all understood by half a word, didn't have to be junk.
21 February 2019
90 USD
The WP Project
A great performer! I recommend !
On time, on the contact 24/7. We work further
26 November 2018
6 USD
Правки сайта на ВП
И снова отлично выполнена работа вами.
Рекомендую как отличного специалиста своего дела. Продолжаем работу.....
17 November 2018
34 USD
Add payment to the site on WordPress Woocommerce
We are working for the second time and we will continue to work together.
Responsible, always on communication, attention to the little ones.
I recommend a professional!
2 November 2018
45 USD
Writing an inquiry for the shop at WP
A great executive.
Attention to details.
and responsible.
I was in contact every day.
The hard 10.
We will cooperate in the future.
I recommend it.
18 October 2018
18 USD
WordPress. Внести мелкие правки, перенести текст
Работа выполнена качественно и в срок
13 October 2018
26 USD
WordPress. Протестировать и поправить мобильную версию сайта
Андрей показал отличную оперативность и качество работы. Все выполнено в срок и четко по ТЗ. Всегда на связи. Будем сотрудничать
| Response review
30 July 2018
23 USD
Website optimization on OpenCart
A great performer! He knows his business!
I did everything quickly and quality. Constantly in contact and offers options as best to perform the assigned tasks.
I will be contacting again! Thank you for work!
I advise everyone.
5 July 2018
17 USD
Changes to the VP template
A professional with a big letter. The task was done at a sample-indicative level. A very responsible and honest freelancer. I recommend to everyone!
5 July 2018
5 USD
Скрытие категории
Отличная работа, хороший специалист
17 June 2018
11 USD
Доработать функционал сайта на вордпресс+ вукомерс Для оптовых продаж
С задачей справился отлично. Рекомендую.
| Response review
11 June 2018
23 USD
Доработать функционал сайта на вордпресс+ вукомерс Для оптовых продаж
Не смотрите на относительно невысокий рейтинг. Очень хороший специалист, справился с задачей которой не справились 3 фрилансера до него. Одназначно рекомендую.
| Response review
24 April 2018
15 USD
WordPress programming for 3-4 hours (10+ junior/middle tasks)
Very quality and rapidly! It was 10/10! I thank you!
| Safe
| Response review
7 April 2018
10 USD
правки сайта
оиличная работа.
13 March 2018
45 USD
Website development at WP
The work is brightly done. All the fights that were discussed were made. The work is done faster than the agreed line. Very pleased with our cooperation. I recommend...
4 March 2018
23 USD
Правки сайта nice-boost.com
Отличная работа!
24 January 2018
15 USD
Repair the bug on the php site and move to another hosting
Everything is done greatly! Thank you for work! I recommend ! 10 of 10!
| Safe
| Response review
14 January 2018
23 USD
Форма расчета и вызова замерщика
Андрей показал себя как настоящий профессионал, по мере выполнения работы вносил правки и отлично справился с поставленной задачей!
Надеюсь на дальнейшее плодотворное, взаимовыгодное сотрудничество!
7 January 2018
23 USD
Creating a website on WooCommerce
great work
| Response review
15 December 2017
34 USD
Скорость загрузки сайта
Спасибо за выполненную работу, Андрей отлично справился с поставленной задачей!
5 December 2017
5 USD
правки сайта найс буст
отлично выполненная работа, работаем уже второй раз.
4 December 2017
45 USD
Woocoomerce Plugin for Price Updates via Excel
Import and export prices have been perfectly arranged through Axel on Vukomer.
| Response review
10 October 2017
10 USD
Posts for WordPress (mm)
Working together was a pleasure! The work is performed properly and in time. I recommend to everyone.
Activity
| Latest proposals 10 | Budget | Added | Deadlines | Proposal | |
|---|---|---|---|---|---|
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Acquiring
34 USD
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Edits on the website
34 USD
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Optimization of the main page
94 USD
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Making changes to the website according to the specifications
94 USD
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Cleaning the site from viruses. Wordpress
142 USD
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Create a wedding calculator for a website made in WordPress
250 USD
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According to the technical specification, carry out work on the website.
96 USD
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Implementation of automatic parsing from the site edrpou.ubki.ua
282 USD
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Continuation of parsing
20 USD
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Парсинг+парсер+оновлення
37 USD
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