Personal information hidden

Oleksii Voskoboinyk , Python Backend Developer
E-mail: [open contact info](look above in the "contact info" section)
Phone: [open contact info](look above in the "contact info" section)
Telegram: @leshka_kote | Linkedin: Link | GitHub: Link
Kyiv, Ukraine | 26 years

Summary
Python Backend Developer with hands-on experience supporting and
analyzing a legacy Django production system.
Experienced in working with existing codebases, resolving migration conflicts, optimizing ORM queries, and
implementing new functionality in a structured Git workflow.
Strong focus on backend architecture, database performance, and clean code practices.
Comfortable working in a team, quick to adapt to new workflows and approaches, and responsible in solving tasks.

Skills
Languages: Python
Frameworks: Django (REST API development)
Databases: PostgreSQL, SQLite
Tools & Infrastructure: Git, Docker, Redis, Nginx
Testing: pytest, unittest
OS / CLI: Linux, Bash (basic)
Core concepts: OOP (encapsulation, inheritance, polymorphism, abstraction), SOLID
Computer Science: basic algorithms and data structures
English: B1

Experience
Contract Project Django Legacy Support & Feature Preparation
Dec 2025 - Feb 2026
• Analyzed and ran a legacy Django project (2018–2022) from the production server locally, performing legacy
code analysis and debugging
• Conducted a code base audit: documented the architecture, business logic, and customizable permission
system
• Researched and documented existing migrations. Proposed a recovery strategy to resolve migration conflicts
• Initialized Git repository, structured the codebase, and isolated new module development in a dedicated feature
branch to ensure clean integration with the main project.
• Designed and implemented new backend functionality aligned with business requirements
• Communicated with the client to clarify requirements and propose implementation options
• Optimized SQL queries using select_related and prefetch_related
• Custom model managers, decorators, permissions system
Tech stack: Python, Django, SQLite, Linux
Python / Django Web Application (Educational Project)
Python, Django, PostgreSQL, Nginx
• Developed an informational web application about automobiles as part of training
• Implemented user registration and authentication (JWT, OAuth 2.0, GitHub OAuth)
• Built a custom admin panel for data management
• Developed REST API based on Django
• Migrated the database from SQLite to PostgreSQL
• Optimized SQL queries using select_related and prefetch_related
• Containerized the project using Docker
• Wrote unit tests using unittest
Tech stack: Python, Django, PostgreSQL, Redis +Docker/Docker Compose, Nginx, Adminer
GitHub: Link

Education
State University of Telecommunications
Educational and Scientific Institute of Information Security. Specialization: Information Security Organization

Master’s Degree — Cybersecurity
2020–2022

Bachelor’s Degree — Cybersecurity
2016–2020