Денис

Denys Voitsun
Junior Backend Developer / Database Engineer
📍 Myrhorod, Ukraine (Remote) | 📞 [open contact info](look above in the "contact info" section) | ✉️ [open contact info](look above in the "contact info" section)
LinkedIn: denys-voitsun-95733b3b9 | GitHub: ddenn06

PROFILE SUMMARY
Backend developer with practical experience in Python, relational databases (MySQL), and
containerization. Skilled in designing database architecture, writing optimized SQL queries, and
automating processes via Python scripts. Confident Linux user. Focused on writing clean code
and quickly adapting to new technologies in real-world commercial projects.

TECHNICAL SKILLS

Category Technologies & Proficiencies

Backend Python 3 (data manipulation, automation, scripting)

Databases MySQL, RDBMS, Database Design, SQL Query Optimization,
CRUD operations

Infrastructure & Docker, Linux (Mint / Debian-based), Bash CLI, environment setup
OS and customization

Other Understanding of corporate information security principles, basic
troubleshooting of network and audio/video interfaces
PROJECTS
AI Telegram Content Aggregator | Python, Asyncio, Pyrogram,
Generative AI (g4f)
●​ Developed an asynchronous application to actively monitor target Telegram channels and
extract new text posts.
●​ Integrated AI models (via g4f library) to automatically rewrite and uniqueize content on the
fly before forwarding it to administrators.
●​ Implemented a resilient active polling mechanism using Pyrogram to bypass standard
Webhook restrictions and prevent silent connection drops.

Crypto Arbitrage & Tracker Bot | Python, Aiogram 3.x, SQLite, REST
API
●​ Built a professional, asynchronous Telegram bot for real-time cryptocurrency market
monitoring and identifying arbitrage windows.
●​ Successfully integrated multiple external APIs, including Binance, WhiteBit, Bybit, and
KuCoin, to fetch live market data.
●​ Configured secure environment variable management using python-dotenv to protect
sensitive API keys.

Travel Planner RESTful API | Python, FastAPI, SQLite
●​ Designed and built a RESTful API using the FastAPI framework for managing travel
projects and locations.
●​ Implemented third-party API integration (Art Institute of Chicago API) to validate
geographical and project data.

Web Data Extractor | Python, BeautifulSoup4, Requests
●​ Created a fast and structured automated web scraping tool to parse raw HTML and
extract targeted data points safely.
●​ Designed a clean, heavily commented, and easily scalable code structure.
EDUCATION
National University "Poltava Polytechnic named after Yuriy
Kondratyuk"
Bachelor of Computer Science / CyberSecurity | Expected Graduation: 2028

●​ Relevant coursework: Database Design, Corporate Security.

LANGUAGES
●​ English: A2 (Pre-Intermediate) - reading technical documentation.
●​ Ukrainian: Native.