Олег

Oleg-Denys Kozak
Cybersecurity & Networking Student

[відкрити контакти](див. вище в блоці «контактна інформація») [відкрити контакти](див. вище в блоці «контактна інформація») Lviv, UA, Ukraine

Summary
Versatile Full-stack Web Developer with a solid grasp of both backend and frontend technologies, known for developing a Library
Management System that streamlined library processes and enhanced user satisfaction. Proficient in Python, MySQL, and modern
web technologies, with a commitment to delivering high-quality code and maintainable architecture. Strong teamwork and
communication abilities foster collaborative environments, driving project success and innovation. Excited to bring my skills to a
forward-thinking development team.

Experience
Full-s tack Web Developer Dec 2025 - Present
Personal Project / Freelance Lviv, UA, Ukraine

Full-stack Developer & Network Specialist (Personal Projects)

Description:

Developed and deployed a comprehensive Library Management System using FastAPI (Python) for the backend and
HTML/CSS/JavaScript for the frontend.

Designed complex database schemas in MySQL Workbench, implementing normalization up to 4NF to ensure data integrity and
optimized query performance.

Engineered network topologies and simulated enterprise environments using Cisco Packet Tracer, configuring protocols such as OSPF,
GRE, NAT, and DNS.

Automated data collection processes by developing web scraping scripts with Python (BeautifulSoup) and performing data analysis
using Pandas.

Managed version control and project workflows using Git, maintaining clean and documented code for scalable web applications.

Languages

English: Intermediate (B1/B2) – Currently enhancing professional communication skills through Engin language courses.

Ukrainian: Native.

Technical Skills :

Backend: Python (FastAPI), SQL (MySQL Workbench).

Frontend: HTML5, CSS3, JavaScript.

Networking: Cisco Packet Tracer (OSPF, NAT, GRE).

Tools: Git, VS Code, Linux basics.

Education
Cybers ecurity and Information Protection - Bachelor of Science (BS)
Lviv Polytechnic National University
2024 - 2028 Lviv, Ukraine
Skills
FastAPI MySQL HTML5
Expert Expert Expert

Git Python NAT
Expert Expert Expert

OSPF Network Configuration
Expert Expert

Languages
Ukrainian Italian English
Native Elementary Fluent

Certifications
Creation and Development of IT Products – Issued by Genesis (in partnership with Diia.Education).

AWS Academy Cloud Foundations – AWS Academy (Currently enrolled / In Progress).

English Language Training – Engin Program (Focus on Technical and Business English).

Accomplishments
Accomplishments:

Successfully developed and deployed a full-stack "Library Management System" from scratch, integrating a FastAPI backend with a
high-performance database schema normalized to 4NF.

Architected and simulated complex enterprise network infrastructures in Cisco Packet Tracer, achieving 100% connectivity and optimal
routing using OSPF and NAT protocols.

Competitive Selection at Genesis: Successfully passed the selection process and completed the "Creation and Development of IT
Products" course, a program with a high rejection rate for students.

Advanced Data Automation: Built custom Python web-scraping scripts using BeautifulSoup, reducing data collection time significantly
for personal analytical projects.

Dual-Discipline Excellence: Successfully balancing a rigorous Cybersecurity degree at Lviv Polytechnic with professional IT certifications
(AWS Academy) and competitive sports (Water Polo), demonstrating exceptional time management and discipline.

Interests
Hobbies & Interests

Water Polo & Swimming: Dedicated athlete with a focus on teamwork, physical endurance, and discipline. Participation in competitive
sports has helped develop strong time-management skills and a goal-oriented mindset.

Networking & Homelabs: Passionate about simulating network environments and exploring cybersecurity protocols. Enjoy experimenting
with Cisco Packet Tracer and building secure local infrastructures.

Open-Source & Continuous Learning: Actively following the latest trends in Cloud Computing (AWS) and Web Development. I enjoy
building small automation tools in Python to solve everyday tasks.

Foreign Languages: Deeply interested in improving my English proficiency through specialized courses to engage with the global tech
community and documentation.