Publication
Introduction to OpenGL: A 3D Text Rendering Tutorial
https://www.toptal.com/developers/opengl/introduction-to-opengl-a-quick-tutorial
Timofey is available for hire
Hire TimofeyTimofey Lonchakov
Verified Expert in Engineering
C++ Developer
Moscow, Russia
Toptal member since August 14, 2017
Bio
Timofey has over 20 years of experience in programming on C++/Windows/Linux platforms and over 10 years working with Qt. He also has experience working with SQL, OpenGL, and various other frameworks and environments. Timofey is a dedicated worker with good communication skills.
Portfolio
Freelance Client
C++, Qt, Windows
Freelance Client
C++, Qt, Visual Studio, Windows, Linux
Freelance Clients
C++, Qt, SQLite, MySQL, 2D, C#, OpenCV, Standard Template Library (STL), SQL...
Experience
- C++ - 18 years
- Microsoft Visual C++ - 13 years
- Windows - 12 years
- Qt - 11 years
- Multithreading - 7 years
- Linux - 4 years
- Sockets - 4 years
- OpenGL - 3 years
Preferred Environment
Linux, Qt, Visual Studio 2015, Windows
The most amazing...
...environment I've worked with was a mix of C++ and Assembler code for better performance in a single project.
Work Experience
Software Developer
2025 - PRESENT
Freelance Client
- Developed new sub-modules for the existing project.
- Worked on architecture and performance improvement.
- Fixed bugs and integrated new features with existing code.
Technologies: C++, Qt, Windows
Software Developer
2024 - 2025
Freelance Client
- Participated in projects for out-staff company clients.
- Developed software, following the project requirements.
- Fixed bugs in the existing code and implemented new features.
Technologies: C++, Qt, Visual Studio, Windows, Linux
Software Developer
2021 - 2023
Freelance Clients
- Developed machinery tools' utility, which stores data in a database using MySQL and SQLite.
- Contributed to the 2D Constructor application, which operates on images and 2D figures.
- Developed code and architecture in Qt and C++ according to the client's requirements.
Technologies: C++, Qt, SQLite, MySQL, 2D, C#, OpenCV, Standard Template Library (STL), SQL, API Integration, APIs, Data Pipelines, 3D Rendering, GitHub
UI Qt Developer
2021 - 2021
Incalia SASU
- Implemented the application UI in Qt according to the provided design.
- Created a template for the core functionality to test the UI module.
- Followed the team requirements (daily reports, regular Git uploads, etc.).
Technologies: Qt, C++, Windows UI, API Integration
Software Developer
2019 - 2019
Pulse Perfect Image, Inc.
- Contributed to the development of a 3D rendering utility.
- Changed an external application's code written in C++ to retrieve its internal data and store it in custom binary format.
- Developed a data file format to contain a predefined set of 3D objects.
- Investigated possible implementations for various features.
Technologies: Linux, Qt, OpenGL, C++, Python, 3D Rendering, Rendering, Shaders
Software Developer
2018 - 2018
LLC | Digital Technologies in Surgery
- Architected, created algorithms, and coded 3D graphics for a desktop application.
Technologies: SQLite, GLSL, OpenGL, C++, Qt, Desktop App Development, Data Pipelines, 3D Rendering, Rendering, Shaders
Software Developer
2017 - 2017
Bauman Moscow State Technical University
- Worked on a client-server application for camera frame processing and recognition.
- Developed application architecture.
- Implemented functionality improvements to code (C++/QtCreator/Linux).
Technologies: Linux, Qt, C++, Distributed Systems, Desktop App Development
Developer
2016 - 2016
ZAO MVP | SWEMEL
- Implemented a multi-module network application which collects log information and stores it in a database on the server site.
Technologies: PostgreSQL, C++, CMake, Qt Creator, Linux, Networking, Distributed Systems, Network Programming, Desktop App Development, SQL, Data Pipelines
Developer
2015 - 2015
3DComplect
- Helped develop an application for a 3D scanner.
- Worked on tasks connected with 3D graphics, including 3D model rendering and editing.
- Implemented file loading/saving using (de)compression library 7-Zip.
- Developed and implemented GUIs.
Technologies: GLSL, OpenGL, C, Qt, Visual Studio, Desktop App Development, Windows UI, 3D Rendering, Mathematica, Rendering, Shaders
Developer
2014 - 2014
LII, LLC
- Contributed to a text parsing project and text content analysis.
- Worked on a VS2012 and Qt C++ project with in-line Assembler code.
- Architected, developed, and coded the projects in Qt and C++.
- Worked on a template for cottage architecture rendering in a browser using Qt, C++, JavaScript, and WebGL.
Technologies: C++, Assembler, Qt, WebGL, JavaScript, Low-level Programming, Desktop App Development, Back-end, Data Pipelines
Developer
2013 - 2014
NIC CALS
- Developed a GUI module with a custom UI control and module functionality (MFC/STL).
Technologies: Subversion (SVN), Visual Studio, Standard Template Library (STL), Microsoft Foundation Class (MFC) Library, Microsoft Foundation Classes (MFC), C++
Developer
2013 - 2013
RTT/ScopicSoftware
- Fixed bugs and provided other support.
Technologies: Microsoft Visual C++, QML, Qt
Developer
2012 - 2013
Transfer Technologies, LLC
- Worked on an application which allows you to provide (tax) accounts via the internet.
Technologies: Linux, Windows, Qt, Network Programming, Desktop App Development, SQL, Data Pipelines, GitHub
Developer
2010 - 2011
RKSS-PS
- Developed and optimized code.
Technologies: Microsoft Visual C++, wxWidgets, Network Programming
Developer
2010 - 2010
Famatech, LLC
- Developed a network utility for remote computer management.
- Implemented features in both the UI and core system related to code and bug fixing.
- Complied with strict adherence to the tasks in Jira and functionalities to be implemented as the only executor responsible before the project manager.
Technologies: Subversion (SVN), Qt, Microsoft Visual C++, Networking, Network Programming, Desktop App Development, APIs
Developer
2007 - 2010
Magellan Navigation | MiTAC International Corporation
- Developed software for GPS navigators (brands Magellan and Mio).
- Worked on bug-fixing, code refactoring, and new features implementation.
- Implemented UI tasks and improved the performance of specific modules.
Technologies: Qt, IBM Rational ClearCase, Standard Template Library (STL), Windows CE, Win32, Microsoft Visual C++, C, API Integration, APIs
Developer
2001 - 2007
ISAN, LLC
- Developed tools and modules for various accounting departaments and customers.
- Expanded the MS SQL 2000 database structure according to the task requirements.
- Implemented new custom UI controls in MFC and adjusted standard/existing ones.
Technologies: Windows, Microsoft SQL Server, Transact-SQL (T-SQL), COM, Microsoft Foundation Class (MFC) Library, Microsoft Foundation Classes (MFC), Microsoft Visual C++, Desktop App Development, SQL, APIs, Data Pipelines
Developer
2000 - 2001
Science Institute of Connection and Managing
- Developed various modules connected with 2D raster graphics and placement elements on a 2D map.
- Worked on module templates with minimal functionality before final implementation.
- Implemented tasks in C++ for both Windows and Linux platforms.
Technologies: Visual Basic, C++, Linux, Windows, C, Desktop App Development
Experience
Education
1993 - 1999
Specialist Degree in Calculative Maths
Lomonosov Moscow State University - Moscow
Skills
Libraries/APIs
Sockets, OpenGL, Win32 API, Standard Template Library (STL), wxWidgets, Microsoft Foundation Class (MFC) Library, WebGL, OpenCV, Microsoft Foundation Classes (MFC)
Tools
Microsoft Visual C++, Microsoft Visual Studio, GitHub, Mathematica, Visual Studio 2015, Visual Studio, IBM Rational ClearCase, Subversion (SVN), Qt Creator, CMake
Languages
C++, SQL, QML, C, GLSL, Visual Basic, Transact-SQL (T-SQL), Assembler, JavaScript, C#, Python
Frameworks
Qt
Paradigms
Desktop App Development
Storage
SQLite, Data Pipelines, PostgreSQL, Microsoft SQL Server, MySQL
Platforms
Windows, Linux, Windows UI, Win32, Windows CE
Other
Multithreading, Rendering, Networking, Network Programming, API Integration, APIs, 3D Rendering, Shaders, COM, 2D, Distributed Systems, Low-level Programming, Back-end
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