Serhii Dobrovolsky
Private message 
Offer work 
Ukraine
available for hire
Rating
Language proficiency level
Українська: fluent
Русский: upper-intermediate
English: pre-intermediate
CV
Work Experience:
- Development of cross-platform applications using Flutter
- Development of an iOS app (Swift) for PTZ camera control
- Development of an iOS app (Swift) for controlling matrix switcher devices
- Development of applications using FastAPI, Django, Flask
- Development of an Automated Workstation (AWS) system using Delphi and Python, utilizing Django, FastAPI, MySQL, PostgreSQL
- Development of a cross-platform desktop application for PTZ camera control in Python using the PyQt5/6 library
- Deployment of applications on servers, including working with Linux, MySQL, PostgreSQL, Gunicorn, Nginx
Technical Skills:
- Dart/Flutter, Python, Swift, Delphi, C#, C/C++
- FastAPI, Django, Flask
- MySQL, MongoDB, MS SQL, SQLite, PostgreSQL
- Celery, Redis
- PyQt5/6
- Linux, Gunicorn, Nginx
- Docker
Skills and abilities
Programming
Mobile development
Administration
Portfolio
- All works 7
- Python 1
- Databases & SQL 1
- Desktop Apps 1
- Apps for iOS (iPhone and iPad) 2
- Hybrid Mobile Apps 2
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BG-NUTRIX Medical Software
Hybrid Mobile Apps
This is specialized software for medical monitoring and management of video PTZ cameras, developed to work with the medically certified PTZ camera BG-NUTRIX from BZBGEAR. The application allows real-time viewing of video and audio, controlling pan, tilt, zoom (PTZ), and adjusting image settings (focus, exposure, color) over the network.
The program implements security and administration features — access rights management, privacy settings, and organizing cameras by location. There is the possibility to save presets, enable automatic motion tracking, and work with NDI video streams, making it convenient for both stationary and remote monitoring of patients in medical facilities.
… This software is suitable for improving the operations of clinics and hospitals, providing intuitive camera control and access to important patient information during examinations and consultations.
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BZBGEAR Pro PTZ Camera Control
Hybrid Mobile Apps
This is professional software for managing PTZ cameras from BZBGEAR, which provides convenient and precise control of video cameras with pan, tilt, and zoom over the network. The application supports working with multiple cameras simultaneously, allows you to configure and save your own positions (presets), control image parameters (focus, brightness, contrast), and has an intuitive interface with a joystick and sliders for PTZ operations. It is available on Android, iOS, Windows, and macOS, and works with BZBGEAR PTZ camera models via the VISCA over IP protocol, making it a convenient solution for broadcasting, studio work, and live video management.
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Toolbox
Desktop Apps
Toolbox ARM is a system specifically developed to handle product management, preparation, and synchronization with trading platforms for small.
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BG-Control for desktop
Python
BG-Control is a cross-platform desktop application that provides control over PTZ cameras using VISCA over IP. It allows adding cameras with custom names and creating presets for easy identification. The application also offers the ability to adjust PTZ speed. Sliders for autofocus, zoom, and aperture enable precise on-the-fly adjustments. The video preview feature allows for quick and easy preset creation directly from the program, and each preset includes a video image for quick and effortless recall.
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BZBGEAR Camera Control
Apps for iOS (iPhone and iPad)
BZBGEAR Cameras Control gives you precision control of up to 8 cameras using VISCA over IP. Add custom names for cameras and presets for easy identification. The ability to adjust the PTZ speed allows you to create smooth, professional looking transitions. Auto-Focus, Zoom, and Iris sliders give you the ability to make accurate adjustments on the fly. The video preview feature of the iPad version lets you quickly and easily create presets directly from the app, and each preset features a video snapshot for fast and easy recall. The favorites feature lets you store presets from different cameras on a single screen for improved multi-camera management.
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Matrix Switchers Managing App
Apps for iOS (iPhone and iPad)
Driving by BZBGEAR matrix comutors from iPad. The possibility of source configuration is display, creation and editing presses as well as the ability to control the condition of the connection of devices.
Supported devices: BG-UHD-44M, BG-UM88-100M-KIT, BG-UM88-150L-KIT, BG-UM44-100M-KIT, BG-UM44-150L-KIT, BG-UHD-88M and BG-UHD-1616M.
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by Arm
Databases & SQL
M.Arm system of automatic accounting of food movements as well as the formation and conduct of the menu.
Reviews and compliments on completed projects 16
3 November 2024
338 USD
Bug fix for iOs\Android application on Flutter
Sergey is always in touch, the delay is mainly related to the poor architecture from the previous developer. Minor adjustments are implemented quickly and without unnecessary questions. I recommend.
21 May 2024
23 USD
Development of an application in Flutter
Cooperation went great, Serhiy was always happy to help, a wonderful professional in his field! And overall, a good person 🙂 Highly recommend!
23 February 2024
226 USD
Converter from the DXF format
The project was not easy, at all stages contacted and verified the results.
1 August 2023
60 USD
Create the functionality of the papacks on the project
Everything is great again! We continue our work! I recommend !
13 June 2023
27 USD
Python to create a PDF or Docx report from JSON
Everything is great again! I recommend cooperation!
7 April 2023
56 USD
Publishing Additional
I am pleased with the project.It’s all fine.
29 March 2023
113 USD
Subscribe to Swift
The work is done smoothly and well.
30 November 2022
5 USD
Python to put the direction
Everything at the highest level! I recommend !
11 November 2022
23 USD
The Django Python
Everything as always quickly and quality! I recommend !
14 October 2022
5 USD
Python slider
A terrible special! Everything was done quickly and quality! I recommend !
14 October 2022
11 USD
Add the IP address search to the subnet
Everything is great! Very professional and timely. Let’s work further!
10 October 2022
23 USD
Python 3.10 Screenshot
It is super! Very professional! We continue our cooperation!
16 June 2020
226 USD
Applications for Windows
Great work! Everything that was in TZ was completed.
23 August 2019
90 USD
Parking of goods card in the online store
Responsible approach to the task and performance of the task. The project is implemented in accordance with the agreed conditions.
6 May 2019
23 USD
Simple software to converge data display from a database
Everything is great. The man from half a word understood what it needed, without any special explanations. Everything is done clearly and in time.
15 April 2016
50 USD
Delphi / MySQL Application
The work is performed quality and in time, clearly following the technical task.
Activity
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Mobile application (online clothing store)
609 USD
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1200 USD
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451 USD
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609 USD
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330 USD
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564 USD
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