Oleksandr Sementsov

A strong and responsible developer. During the time working on the project, he demonstrated a high level, brought the system to a stable state, and always did more than required by the task. The architecture is built well, the solutions are well thought out, and the interaction is comfortable. I recommend him as a reliable specialist.

The performer demonstrated a high level of responsibility and involvement in the project. Worked for more than three weeks on complex modules of the system, requiring a deep understanding of logic, API, and architecture. Despite the increased volume of tasks, he brought the work to a stable result. The project required unconventional thinking, and the performer handled it well. I recommend him as a reliable and thoughtful specialist.

High level of responsibility in work. It is clear that he approached it seriously and completed a very large amount of work:
Significantly strengthened the architecture (project structure, database, memory managers, stability);
added a tracker that can now record and count statistics;
expanded analytics (volume profile, news from two sources, filters).

Completed the assigned task on time! Found solutions during difficulties in the process!
I am satisfied with the completed tasks:
Connected the API.
Implemented information gathering.
Created an SQLite database with a structure for future analysis. Wrote information processing.
Added analysis.
Provided a nice dashboard.
The code is robust: error handling, reconnect for WS, backoff logic.