Switch to English?
Yes
Переключитись на українську?
Так
Переключиться на русскую?
Да
Przełączyć się na polską?
Tak

Sergey K.

Offer Sergey to work on your next project.

Ukraine Sumy, Ukraine
4 days 12 hours ago
Available for hire available for hire
101 Safe completed
2 months 7 days ago
40 Clients
registered for 8 years

Rating

Successful projects
100%
Average rating
10 of 10
Rating
1027
HTML and CSS 1
C and C++
41 projects
Technical documentation
25 projects
C and C++
9 projects
Rewriting
6 projects
English

Skills

Portfolio


  • 1 USD

    The Instagram Track on the Site

    Web programming
    Take the Instagram tape to the site
    No widgets are used only by Access Token.
  • 6 USD

    I’m going to download the landing page for you.

    HTML and CSS
    Have you seen a competitor beautiful one-sided website?I copy the landing page for you and I feel that and you get more customers in your business !What is included in the price:
    - a copy of your landing page / one-sided site (1 page of the site)
    - original html code (like the donor, but I remove the calculator and the widget)
    - full set of images from the site (as in the donor)
    All JS/CSS files (as donor)
    - change of contact details to your (email, phone)
    Please note the additional options:
    - Connecting the feedback form to your email
    Create a copy of the hosting.
    Connect the Yandex Metric or Google Analytics
    Website created by designer or not.
    - Copy of WordPress / Bitrix / Joomla
    Attention !Such directions, such as the modification of images, text blocks, the location of objects, the addition of any content, are not included in the value.Do not take on websites, prohibited themes (adult etc.by p.And also sites with viruses and which are blocked by antivirus.I do not copy from the platforms Wix, uKit, Bloxy, online stores, payment resources
    No copies to CMS
    Required for order:
    The donor’s website.Data from hosting, if you ordered the option "Install on hosting"
    Email address, if you ordered the option "Connect forms of feedback"
    Data from metrics or analysts, if you ordered an option.The freelance service includes:
    Copy of 1 page
    Duration: from 1 to 3 days
    Type: Landing or one-sided website
    CMS: HTML and Textolite
    Language of development: PHP, HTML CSS
    Database: Not provided
  • 3 USD

    Slider

    HTML and CSS
    I will install your site slider
  • 102 USD

    The Internet Shop

    Online stores and e-commerce
    I have an online store for you.
    What you need:
    1 . the context;
    The 2nd The image of the goods.
    All wishes and wishes are taken into account.
    If the development from zero - time for the execution of the order 7 days
    If the order is completed, the time is 3 days.

Reviews and compliments on completed projects 101

20 January 25 USD
Translation

Quality
Professionalism
Price
Availability
Terms

As always on the level.
Thank you for work

16 September 2023 18 USD
Translation of text by video

Quality
Professionalism
Price
Availability
Terms

It’s clear as always. It is not the first and not the last time we work.

20 June 2023 13 USD
Laboratory work on s/s++

Quality
Professionalism
Price
Availability
Terms

The work was done very quickly and efficiently.

22 February 2023 13 USD
Practical work on C++

Quality
Professionalism
Price
Availability
Terms

The author has always been in contact, quickly and efficiently completed the project. I recommend to everyone.

18 February 2023 13 USD
Software add-on in “C”. Terminal

Quality
Professionalism
Price
Availability
Terms

We’re going to work together and forward. I recommend to everyone

Quality
Professionalism
Price
Availability
Terms

Fast and efficiently done work!

Quality
Professionalism
Price
Availability
Terms

I made it faster than I needed. I recommend cooperation!

3 January 2023 13 USD
Laboratory work and diagram on the database in live sql

Quality
Professionalism
Price
Availability
Terms

Good work in a short time.

12 December 2022 25 USD
Home Work 3

Quality
Professionalism
Price
Availability
Terms

Everything was done even in advance, thank you for the speed and high level of professionalism. I will contact you again.

2 December 2022 51 USD
Home Work 2

Quality
Professionalism
Price
Availability
Terms

Everything was done even before the deedline and everything was right. Everyone has been done quickly and has been done twice, I recommend it.

23 November 2022 10 USD
Laboratory work of C++

Quality
Professionalism
Price
Availability
Terms

Greatly performed work. Everything is done in the time and in the time.

20 November 2022 18 USD
Home work at the university

Quality
Professionalism
Price
Availability
Terms

Everything is done well and in time.

11 November 2022 15 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Great work, thank you for your collaboration!!The !

7 November 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Great work, as always. Thank you for cooperation

5 November 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Great work, thank you for your collaboration.

2 November 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Great work thank you for your collaboration!

1 November 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Great work, thank you for your collaboration.

28 October 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Great work thank you for cooperation.

20 October 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Great work, thank you for your collaboration.

19 October 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Thank you for your collaboration, as always great work!

17 October 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Great work, thank you for your collaboration.

16 October 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Great work, thank you for your collaboration.

11 October 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Great work, thank you for your collaboration.

10 October 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Great work, thank you for your collaboration!

4 October 2022 15 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Great work, as always at the height.

25 September 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Thank you for your collaboration, great work!

20 September 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Great work, thank you for your collaboration!

18 September 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Great work, quality at the height!

16 September 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Great work, thank you for your collaboration.

14 September 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

This is a wonderful robot, I recommend.

11 September 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

A great robot, I recommend.

7 September 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Great work, thank you for your collaboration.

6 September 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Great work, thank you for your collaboration.

5 September 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Great work, thank you for your collaboration.

4 September 2022 13 USD
Make a quality manual re-right of articles in English

Quality
Professionalism
Price
Availability
Terms

The work is done well. and thank you.

2 September 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Приємно співпрацювати, чудова робота

31 August 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Good work, we work together.

30 August 2022 14 USD
Make a quality manual re-right of articles in English

Quality
Professionalism
Price
Availability
Terms

Work done in time and quality.

27 August 2022 15 USD
Make a quality manual re-right of articles in English

Quality
Professionalism
Price
Availability
Terms

The work is done very well and timely! The result is satisfied.

25 August 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Great work, thank you for your collaboration.

24 August 2022 15 USD
Make a quality manual re-right of articles in English

Quality
Professionalism
Price
Availability
Terms

The work is done well. I’m going to go to the executive again.

21 August 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

The work was great, thank you for cooperation.

19 August 2022 8 USD
Описать алгоритм

Quality
Professionalism
Price
Availability
Terms

Great work, I hope for future cooperation.

18 August 2022 8 USD
Опис алгоритмов

Quality
Professionalism
Price
Availability
Terms

Робота виконана швидко, як завжди приємно співпрацювати!

17 August 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Якісно виконана робота, вкотре співпрацюємо.

16 August 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Good work, pleasant collaboration

15 August 2022 15 USD
Make a quality manual re-right of articles in English

Quality
Professionalism
Price
Availability
Terms

Roosevelt is done well.

13 August 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Great work, thank you for your collaboration!

11 August 2022 10 USD
Make a re-right article in English

Quality
Professionalism
Price
Availability
Terms

The work was done very quickly and efficiently!

9 August 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

The work is done greatly! As always, pleasantly collaborating.

9 August 2022 13 USD
Make a re-right article in English

Quality
Professionalism
Price
Availability
Terms

Excellent and good work at the scheduled time. I recommend the executive.

7 August 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

A great professional, we work all up!

5 August 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

The work was done quality and very quickly.

4 August 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

The work was done wonderfully and quickly.

31 July 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

The work was performed greatly.

28 July 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

The work is done at the height, everything is fast and quickly!

26 July 2022 8 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

The work is done greatly, everything is clear and fast.

21 July 2022 5 USD
Basic Principles of OOP

Quality
Professionalism
Price
Availability
Terms

The work has been done quickly in time, I highly recommend!

15 July 2022 8 USD
Practical tasks with C++

Quality
Professionalism
Price
Availability
Terms

Work is fast and efficient – everything is done according to the task. I recommend it!

13 July 2022 8 USD
Translation

Quality
Professionalism
Price
Availability
Terms

Everything is well. There is no narcissus. Made by Consciousness

10 July 2022 15 USD
Quality manual re-right of English-speaking article for the website

Quality
Professionalism
Price
Availability
Terms

Excellent work done before the specified deadline. I recommend the executive Sergey Kovalevsky.

Quality
Professionalism
Price
Availability
Terms

Excellent work done, very rapidly, faster than the scheduled time. I recommend Sergey Kovalevsky as a responsible executor.

Quality
Professionalism
Price
Availability
Terms

Very fast and well, happy with work.

5 July 2022 8 USD
Course Robot

Quality
Professionalism
Price
Availability
Terms

A very good and positive person! It works quickly, quality and at a delicious price! I recommend to everyone!

28 June 2022 6 USD
Concepts

Quality
Professionalism
Price
Availability
Terms

Or to create a project?
It is a great pleasure to work together, master of your business.

27 June 2022 6 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Master of your business. The work is done in time, even earlier.

25 June 2022 6 USD
Mathematical Concepts

Quality
Professionalism
Price
Availability
Terms

Excellent copywriter, master of his business, the robot is done quickly!

Quality
Professionalism
Price
Availability
Terms

The freelancer made the task very quickly, everything in time. Very much thank you.

21 June 2022 5 USD
Implementing tasks

Quality
Professionalism
Price
Availability
Terms

All good, fast, quality, freelancer I recommend

20 June 2022 5 USD
Connecting the task

Quality
Professionalism
Price
Availability
Terms

The project has been done well in the scheduled time. I recommend it!

10 June 2022 25 USD
Database Tracking

Quality
Professionalism
Price
Availability
Terms

The work is done properly and timely, I recommend cooperation.

Quality
Professionalism
Price
Availability
Terms

Great work! It was pleasant to work together.

28 February 2022 5 USD
The Java Exam

Quality
Professionalism
Price
Availability
Terms

Thank you for the quickly done work.

28 February 2022 9 USD
Отчет

Quality
Professionalism
Price
Availability
Terms

Fast, high quality, not the first time we work.

Profile deleted | Personal | Response feedback

19 February 2022 9 USD
Laboratory work in language C, Report

Quality
Professionalism
Price
Availability
Terms

Everything is good, fast, quality.

Profile deleted | Safe Safe | Response feedback

7 February 2022 5 USD
Block scheme by code Python and C

Quality
Professionalism
Price
Availability
Terms

Everything was done quickly and quality.

Quality
Professionalism
Price
Availability
Terms

It was performed in 2 hours. They answered, explained, made and showed.

16 January 2022 22 USD
Solution of tasks

Quality
Professionalism
Price
Availability
Terms

It is done effectively and responds quickly to the messages.

Profile deleted | Safe Safe | Response feedback

10 December 2021 5 USD
perform 3 simple work on C++

Quality
Professionalism
Price
Availability
Terms

Just the best performed the practical on which he sat and suffered for 2 weeks just respect

3 December 2021 5 USD
Task by Java

Quality
Professionalism
Price
Availability
Terms

The work is done in good quality and timely, thank you!

Quality
Professionalism
Price
Availability
Terms

The graduate greatly dealt with writing a course on the theme of developing an algorithm of linking the calculation task in the language of the C. The work was divided into sections, divided according to the given sample, drawn up with screenshots, explanations using the appropriate terminology. It was less time spent on the performance, but everything was done very well. I will definitely go again.

16 November 2021 6 USD
The task of C++

Quality
Professionalism
Price
Availability
Terms

Excellent performance during the work)

14 October 2021 15 USD
Translate the article into English

Quality
Professionalism
Price
Availability
Terms

Thank you very much, the article was allowed to be published. I wish success!

Profile deleted | Safe Safe | Response feedback

18 September 2021 8 USD
The task of R

Quality
Professionalism
Price
Availability
Terms

The executor did everything very quickly, clearly, answered the necessary questions and explained the uncomprehensible moments!
I am very pleased and strongly recommend!
A lot of thanks!

29 April 2021 5 USD
Задачки по С

Quality
Professionalism
Price
Availability
Terms

Супер! Спасибо огромное! Качество на высоте!

28 April 2021 5 USD
Задачки по С

Quality
Professionalism
Price
Availability
Terms

Мега скорость, мега качество! Спасибо!

16 April 2021 10 USD
Задачки по Python и С

Quality
Professionalism
Price
Availability
Terms

Быстро, качественно. Спасибо

6 April 2021 13 USD
Задачки по Python и С

Quality
Professionalism
Price
Availability
Terms

Все работает, спасибо. Быстро, качественно. Рекомендую!

26 March 2021 13 USD
Решить задачи на языке С

Quality
Professionalism
Price
Availability
Terms

Все отлично! Быстро и качественно! Спасибо!

19 March 2021 20 USD
Решить задачи на языке С

Quality
Professionalism
Price
Availability
Terms

Все супер. Оперативно, качественно. Быстрая коммуникация, консультация по вопросам. Спасибо.

Quality
Professionalism
Price
Availability
Terms

Fast, high quality, everything at the height. Thank you !

Quality
Professionalism
Price
Availability
Terms

The work was done before the deedline. Fast and according to TZ.

4 February 2021 5 USD
Help to solve a mistake on C.

Quality
Professionalism
Price
Availability
Terms

A good freelancer. Qualitatively and quickly done work

22 November 2020 5 USD
Task by C#

Quality
Professionalism
Price
Availability
Terms

Everything is great, done in time. Working pleased

5 November 2020 13 USD
Python JSON Task Solution

Quality
Professionalism
Price
Availability
Terms

SpasiboSpasiboSpasiboSpasiboSpasiboSpasiboSpasiboSpasiboSpasiboSpasiboSpasiboSpasiboSpasiboSpasibo

19 October 2020 11 USD
tasks in English

Quality
Professionalism
Price
Availability
Terms

As the last time it was super!!The !

8 October 2020 18 USD
tasks in English

Quality
Professionalism
Price
Availability
Terms

Quick and high quality, I recommend!!!The !

24 September 2020 8 USD
Laboratory of C++

Quality
Professionalism
Price
Availability
Terms

High level of communication with the customer, high speed of performance.

24 September 2020 19 USD
Normal algorithms

Quality
Professionalism
Price
Availability
Terms

Operational, punctual, support and outside of the project, I advise.

Quality
Professionalism
Price
Availability
Terms

For me, the most important feedback and compliance with the principle said = done. Sergey was always in touch. The initial agreement on all work points was completed. And for me, it’s two hallucinations, connection and man-word. Thank you for your collaboration and I will call again.

Profile deleted | Safe Safe | Response feedback

18 August 2020 37 USD
Верстка

Quality
Professionalism
Price
Availability
Terms

отличный исполнитель! Рекомендую!

Profile deleted | Personal | Response feedback

Activity

  Recent proposals 10
Translation Personal project
25 USD
Solution of tasks on the subject Computer technology in the organization of the computer Personal project
13 USD
Translation of Songs
51 USD
I'm looking for a person who reads the text and forms the text literally.
13 USD
Blocking of Python Code Personal project
13 USD
Translation of text by video Personal project
18 USD
Translation of English Interview
13 USD
Course work (text part without the program), Guide to Kiev
20 USD
Laboratory with C# (Corporate Information Systems Platform)
15 USD
Higher Mathematics Laboratory (C++ / Python) Personal project
13 USD