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Evgeny Kozlovsky, Python Developer
Birthday: 08-02-1998, Location: Kyiv, Ukraine
t.me/koevjob, [open contact info](look above in the "contact info" section), github.com/koevgeny10, [open contact info](look above in the "contact info" section)

Summary
Software Engineer with 5+ years of commercial experience, fluency with modern AI coding tools,
and a solid foundation in Computer Science. My core tech stack includes Claude Code, Python,
FastAPI, PostgreSQL, Docker, and Docker Compose. Experienced in mentoring junior developers,
performing code reviews, and enforcing strict code quality and best practices. Skilled at defining
product features, gathering requirements, and planning tasks.

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

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

Work experience

2 years and 2 months 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”.