Oleksii

OLEKSII KORNIEV [открыть контакты](см. выше в блоке «контактная информация»)
[открыть контакты](см. выше в блоке «контактная информация»)
Kryvyi Rih, Ukraine, remote
Python Developer Github Linkedin Telegram

Summary Skills
Python Developer experienced in building and deploying Python 3.10+
Django web apps using Python, PostgreSQL, HTML/CSS, Object-Oriented Programming
and JavaScript. My Upper-Intermediate English helps me
SOLID Principles
work effectively in international teams and handle English-
language resources with ease. Earlier, as a Sales Manager, I PostgreSQL, SQLite
strengthened my communication and mentoring skills by Django, Django ORM
training new employees who quickly met their KPIs. My Django Rest Framework
client-oriented mindset and teamwork led to recognition as
one of the top performers. Fast API, Asynchronous Python
HTML, CSS, JavaScript (Basics)
Experience from Mar 2025 Git/Github
Docker
Streaming API | Python Developer Web Scraping
Technologies: Python, FastAPI, SQLAlchemy, Pydantic,
JWT, aiosmtplib, PostgreSQL, Alembic, Docker, AsyncIO, L an g uag e
Git/GitHub
B uilt a full authentication and profile management English - Upper Intermediate
system with FastAPI and SQLAlchemy, using clean,
modular architecture.
Education &
Designed relational database models and a secure Co ur s e s
registration flow with hashed passwords, async email
verification, and token-based activation.
Python course at Mate academy
Developed JWT authentication with access/refresh (OOP, Python, Django) | 2025
tokens, rotation, and persistence in the database.
CS50: Introduction to Computer
Added REST endpoints for registration, activation, login, Science (Online), Harvard University
logout, and token refresh.
| 2025
Applied Pydantic validation for email and password
Java course at Logos IT-
security, and implemented RBAC via user roles.
Academy(OOP, Java, SQL) | 2023
Used dependency injection for services like EmailSender
and JWTAuthManager to improve testability and
maintainability.

Ensured asynchronous operations for high performance
and clear error handling with custom exceptions.

Library Service | Python Developer
Technologies: Python, Django, Django REST Framework, Celery, Redis, PostgreSQL, Docker, Telegram API,
Pytest, Git/GitHub
Collaborated with backend developers to design and implement core system features .

Built REST API endpoints for authentication and profile management.

Optimized Django Admin for Book and Payment models with filters, search, and inline editing for easier
management.

Developed a notification system using a custom interface and Telegram integration for real-time admin
alerts.

Integrated Celery Beat and Redis to schedule daily overdue notifications and automated tasks.

Wrote unit tests to ensure API reliability and used Git/GitHub for version control and teamwork.
Theater API | Python Developer
Technologies: Python, Django REST Framework, SQLite, Docker, JWT, Git/GitHub
Developed a RESTful Theater API for managing plays, performances, tickets, and reservations using Django,
DRF, and SQLite.

Implemented role-based authentication with JWT, reusable modular apps, and action-based permissions.

Ensured data integrity with custom validation and relational consistency.

Documented endpoints via drf-spectacular (OpenAPI/Swagger) and used Django Debug Toolbar for profiling.

Containerized and deployed with Docker, maintaining version control through Git/GitHub.
KitchenHub | Python Developer
Technologies: Python, Django, Html/Css, JavaScript, PostgreSQL
B uilt and deployed a Django web app using Python, HTML/CSS, JavaScript, and PostgreSQL.

Implemented admin tools for managing chefs, dishes, and responsibilities, plus cook features for task
management and profile updates.

Added role-based authentication and authorization, configured static/media handling with WhiteNoise, and
deployed on Render using Git/GitHub.

PR E VIOU S E XP E RI E N C E
Sales Manager, Dec 2023 – Feb 2025
Tools: CRM systems, Excel, Google Workspace
Responsibilities & Achievements:
Managed client relationships, closed sales deals, and delivered product presentations

Trained and onboarded 3 new employees, improving performance and speeding up KPI achievement

Standardized training materials, boosting efficiency for future hires

Monitored sales metrics, prepared reports, and resolved customer inquiries

Recognized as a top performer for customer satisfaction