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Evgeny Kozlovsky, Middle Python Developer
Birthday: 08-02-1998, Location: Kyiv, Ukraine
t.me/koevant, [открыть контакты](см. выше в блоке «контактная информация»), github.com/koevgeny10, [открыть контакты](см. выше в блоке «контактная информация»)

Summary
Python Backend Engineer with 5+ years of commercial experience and a solid foundation in
Computer Science, specializing in PostgreSQL, Docker, Docker Compose. Experienced in
mentoring juniors, performing code reviews, and maintaining strict code quality and best practices.
Skilled at defining product features, gathering requirements and task planning.

Technologies
● Python, asyncio, ● Redis ● Git
typing ● Faststream, ● Pytest
● PostgreSQL, RabbitMQ ● Aiogram 3
sqlalchemy, ● Poetry ● Pandas
alembic, pgadmin4 ● Pre-commit, ruff, ● XlsxWriter
● Fastapi, pydantic pyrefly, pyright, ● Jupyter Notebook
● Docker, Docker mypy, black ● Linux
compose ● Httpx
and I can learn new things quickly.

Computer science, theoretical knowledge
● OOP, SOLID, ● SQL query ● Concurrency,
DDD optimization, parallelism, async,
● HTTP, REST API, B-tree, ACID threads, processes
Websocket, JWT, ● Algorithms and
OAuth2 data structures

Work experience

2 years in the IT department at Antenor

Engineered a high-load platform for vehicle monitoring and real-time streaming data processing
from telematics devices (trackers and beacons).
● Led technical development under a non-coding Team Lead, owning the codebase
implementation, architecture, and deployment. Wrote clean, production-ready Python
code adhering to DDD principles, leveraging asyncio, strict typing and SQL query
optimization.
● Managed and mentored 2 junior developers and conducted regular code reviews.
 ● Designed and implemented a microservices architecture with streamlined deployment via
Docker Compose.
● Architected a large-scale, optimized PostgreSQL database schema with storage for device
messages history and introduced caching for heavy computations.
● Implemented high-load real-time message processing and key data aggregation.
● Built a fine-grained, atomic access control system for specific entity instances. Implemented
device commanding, geofencing integration, and metric counters.
● Developed comprehensive interfaces including a client dashboard, master admin panel,
real-time monitoring, historical vehicle tracks. Integrated user event notifications via
WebSockets and Telegram. Created an analytical reports module with file export
functionality.

3 months at 4bill

Improved the accounting reconciliation system, improved code quality using pre-commit with
linters and built a module that creates Excel reports.

9 months at Ukrenergo digital solutions

Worked on the development of the system of verification of resource schedules, which will help to
control the balancing market and analyze the potential of market participants.

2 years in the IT department at Ukrenergo

Developed the platform for accounting of all Ukrenergo metrological instruments across Ukraine.
Also contributed to the development of a platform for collecting all kinds of reports in the energy
sector.

3 months in the IT department at Sport Life

Worked on the development of a site for medical analysis and health tracking of the company's
clients.

Other
● Languages: English - Upper intermediate; Ukrainian - Native; Russian - Native.
● Education: Bachelor of Applied Mathematics from National Technical University of
Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”.