Alexander Danilchenko

Emulator of the company's GNSS receiver based on a third-party GNSS receiver. 1. Development of a multithreaded logging subsystem for all system data streams with the possibility of flexible configuration of each logger. 2. Development of a command shell subsystem for the possibility of remote control of the application. 3. Converting commands and responses from the language of the company's GNSS receiver to the language of the third-party GNSS receiver. 4. Fixing hard memory leaks in legacy code.

System for providing virtual desktops to enterprises. 1. Integration of the desktop client with Microsoft Teams and Zoom media plugins. 2. Patching of the Zoom plugin loaded into the process of the desktop client in order to fix a bug. 3. Making a mechanism for passing all the screens of the plugin installers without user intervention. 4. Client redesign to eliminate parent-child relationships of windows from different processes. This was necessary for screen sharing to work correctly in Microsoft Teams.

1. Development of an application server as a Linux daemon that interacts with clients via gRPC and uses MySQL as a database. 2. Development of a network server as a Linux daemon for live conversion and multiplexing of data streams from a legacy server to multiple clients. 3. Converting serialization and deserialization in legacy code to use Protobuf. 4. Converting configuration data from XML to JSON using complex logic.

Proactive defense system with a firewall, antivirus scanner and cloud analysis. 1. Development of a multithreaded asynchronous priority queue for collecting metadata of PE files (imports, exports, resources, etc.), obtaining verdicts of the antivirus module, and treating of infected files. 2. Development of GUI based on Sciter. 3. Development of a subsystem for restoring missing debugging symbols for the "ntoskrnl.exe" and "win32k.sys" files of a specified Windows build based on previous Windows builds.

Vessel movement control system. 1. Development of an event logging subsystem and an application for viewing logs. 2. Development of a charting subsystem with a server for storing accumulated data. 3. Development of a form manager – add-on for VCL related to the subject area. 4. Ensuring the working of the system on multiple monitors and at different screen resolutions.

Emergency decision support system. 1. Development of a subsystem for saving and restoring business objects from a database, transferring them over a network and synchronizing between a server and clients. 2. Development of a web service for calculating the consequences of emergencies. 3. Development of a subsystem for the import of oil spill response facilities from MS Access.

Train position visualization system at the railway transport. 1. Development of the main client application for displaying train positions in real time. 2. Development of subsystems for searching, statistics collecting, making of reports for printing. 3. Redesigning most of the legacy code to meet the new requirements for functionality and performance.