Serhii Grishko
Private message 
Poznan,
Poland
available for hire
Rating
Language proficiency level
Українська: fluent
Русский: advanced
Polski: pre-intermediate
English: elementary
CV
Hello, I am a freelance programmer specializing in the C# programming language and the .NET framework. I have experience in software development using WPF and am familiar with design patterns such as MVVM, Caliburn Micro, MVVM Light, MahApps Metro, and Material Design Themes.
I can develop Linux desktop applications using the Avalonia platform.
I am proficient in working with the Git version control system and have experience with various databases, such as MySQL, MSSQL, SQLite, and others. I am also knowledgeable in LINQ and the use of Entity Framework for database operations.
My experience includes software development using Selenium WebDriver and its functionalities, such as working with proxies, User Agents, JavaScript, and incognito mode. Additionally, I have experience developing solutions based on Web API and can solve captchas and perform SMS verification on websites using web APIs from various online services, such as anti-captcha.com for captchas and getsms.one for SMS.
I also have experience in developing web applications using ASP.NET, Blazor, REST API, and Web API, and I can utilize them effectively in my work.
I have experience in developing Telegram Bots as well.
Overall, I am a skilled and experienced programmer, ready to provide high-quality services in software development.
Skills and abilities
Programming
-
Bot Development
from 4 USD for hour
- C#
-
Data Parsing
from 4 USD for hour
-
Databases & SQL
from 4 USD for hour
- Desktop Apps
Mobile development
Administration
- Linux & Unix
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Windows
from 4 USD for hour
Portfolio
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68 USD Software to upload videos to YouTube
C#
Software to upload videos to your YouTube channel
The program can:
1 . Download video on YouTube using the API.
2nd The choice of delay.
… Three Choosing the amount of video filling.
4 . Viewing and keeping the work report.
and 5. Possibility of issuing a license.
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20 USD The program that enters the text into the task field on the site
C#
The principle of the program: switching to the link (every time from another proxy) - click the button - enter the text (Text from the downloaded list) to a specific field on the site - click the button.
The program is able to:
1 . Support for multi-track work.
… 2nd Support for proxy.
Three Random time of delay.
4 . Enter the list of the text that will be entered into the field.
and 5. Drive the data automatically to the site in a slide mode.
-
45 USD Form Editor (Blank Editor)
C#
The main task of the program is to print the information filled in the form on the form according to a strictly specified sample.
Made on Wpf MVVM Caliburn Micro
-
5 USD Game of Tiles
C#
The essence of the game you need to remember the location of the plates, then pairally turn them
Made on Wpf MVVM Caliburn Micro
-
180 USD Password keeper
C#
The Password Keeper:
Software to protect and safely store passwords locally.
Passwords are stored in a local database and protected
With the block code “The Knight”
… System Requirements :
• Windows 10
Microsoft .NET Framework 4.5
-
5 USD The Algorithm App
C#
Implementation of the algorithm on Windows Form
-
6 USD The Assassin Driver
C#
A game where a man escapes from the car
The car is always angry for man and man.
It escapes from it using the algorithm A*
Created on Windows Form + OpenTK
Reviews and compliments on completed projects 16
4 March 2025
291 USD
Scraping from auto service parts store: scraping from stores → n8n/Make.com → Airtable API
The work was carried out very quickly, it is nice to work in a team, we are in touch every day. Very fast communication and well-coordinated work and the whole task was completed efficiently and patiently. I highly recommend cooperation.
31 March 2021
7 USD
The method of request using the proxy http(s)/socks4/socks5. c#
Everything is done, done in time.
29 March 2021
9 USD
C# wpf sql server
Все отлично, хорошо ведет диалог с заказчиком
| Response review
16 September 2020
45 USD
C# Selenium Web Driver, Firefox Portable, FunCaptsha
Work is done, I think work in the future can be done.
21 June 2020
9 USD
Press the buttons in another program.
Always in contact. He responds quickly. The work is done in time and quality.
| Response review
11 September 2019
51 USD
Software or service to publish ads on OLX.
Sergey is a professional in programming. Everything is done quickly, well. He will always tell me on the phone what to do. Correction of errors. Very pleased with cooperation and the result. I recommend it as a well-known and reliable artist.
4 May 2019
6 USD
Help to write two powershell script
The work was done quickly and efficiently.
I recommend it.
1 March 2019
61 USD
Клиент-Сервер Uship
Очень хороший исполнитель. Выполнено все быстро, качественно. Точно в срок. Рекоммендую
17 February 2019
4 USD
c# инструмент для рисования
Отлично, все выполнено быстро и качественно
29 December 2018
10 USD
Добавить многопоток
Отличный исполнитель, работаем с ним уже не в первый раз. Всегда на связи, творчески подходит к задаче, и оперативно вносит правки, рекомендую.
19 December 2018
11 USD
Поправить и выровнять WPF форму
Все отлично, человек сделал работу раньше срока, все быстро и качсественно. Обещал бесплатно исправлять баги если я их найду.
| Response review
11 December 2018
10 USD
Multi-track program that enters the text into the assigned field on the site
A great artist, quickly wrote the program, was always in contact and quickly introduced directions. I recommend cooperation!
| Response review
25 November 2018
5 USD
The Simple Program
Sergey demonstrated himself as a real professional of his business. He completed the project much earlier than the deadlines set; the program developed by him is convenient in use; the price of the interest was lower among all the offers of other freelancers. I recommend the services of Sergey to everyone.
14 September 2018
23 USD
Доработка проекта заполнения форм и дополнительные консультации
Сергей выполнил дополнительные работы, которые не входили в исходное ТЗ по разработке, очень качественно и в кратчайшие строки!
Готовый продукт получился полностью функциональным и покрывающим все текущие потребности.
Рекомендую к сотрудничеству!
Буду обращаться еще!
11 September 2018
23 USD
Program for filling and printing forms according to a strictly specified template
Sergey creatively approached the assigned task and realized it at a high level.
He proposed his own solution to the task, which he eventually approved and developed.
He was always in contact and answered questions quickly.
The project was completed a day before the appointed line.
The work with Sergey is completely satisfied.
I will contact you again!
5 July 2018
5 USD
СКРИПТ
Хороший и терпеливый исполнитель. Рекомендую сотрудничать.
Activity
| Latest proposals 10 | Budget | Added | Deadlines | Proposal | |
|---|---|---|---|---|---|
Remote Part-Time Opportunity
1000 USD
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GUI Development C# WPF
24 000 USD
|
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Python script for automating registration via API with email, OTP, and proxy
83 USD
|
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YouTube — development of a tool for working with cookies, proxies, and bulk actions
1900 USD
|
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UI WPF C# .NET Framework 4.6.1 translation to multiplatform (Linux+Windows)
100 USD
|
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|
Scraping from auto service parts store: scraping from stores → n8n/Make.com → Airtable API
291 USD
|
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|
Scraping from auto service parts store: scraping from stores → n8n/Make.com → Airtable API
291 USD
|
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|
WEBSITES CREATION TO DESKTOP APPLICATION
30 USD
|
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FB parsing
45 USD
|
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Registration of 30 TIK TOK Accounts
11 USD
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