Дмитро

Dmytro Onufriienko
Odesa, Ukraine | [відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація») | t.me/Otcovsky | github.com/otcovsky

Profile
Full-Stack developer with 5 years of experience in software engineering, including over 2 years
working on commercial production code. I specialize in backend microservices, asynchronous REST
APIs and large-scale data processing in Python and Node.js.
I build data collection and processing pipelines: web scraping, document parsing and conversion, and
work with analytical and time-series databases. I integrate LLMs and vision-language models into
workflows: data structuring, translation, and alt-text generation for images.
I also build frontends with React, Astro, Vite, TypeScript and Tailwind CSS, and I am confident working
with Linux infrastructure. I am interested in AI agents and experiment with them in my own projects.

Work Experience
Full-Stack Developer | SmartEnergyPro.tech | 08.2026 — Present
Tech stack:
• SFTP: Linux, OpenSSH (SFTP, chroot), PostgreSQL, PgBouncer, Python, Bash, systemd
• Backend: Python, FastAPI, asyncio, asyncpg, PostgreSQL, TimescaleDB, REST API
• Frontend: React, Vite, Tailwind CSS, ECharts, JavaScript

Full-Stack Developer | MyMedSheet.com | 04.2025 — Present
Tech stack:
• Backend: Python, FastAPI, Pydantic, Uvicorn, asyncio, ClickHouse
• Frontend: Astro 6 (SSR, Node.js), TypeScript, Preact, Tailwind CSS
• Data processing: web scraping (requests, httpx, Playwright), REST API integration, PDF parsing,
PDF/MHT to HTML/Markdown conversion, multithreaded processing
• AI / LLM: OpenAI-compatible API, Qwen3, Gemma, vision-language models (Qwen3-VL); data
structuring, translation, and AI-powered alt-text generation for images

Data Processing | OlaDoctor.com | 01.2024 — 04.2025
• Web scraping
• REST API integration
• Data structuring with LLMs

Education
Odesa I. I. Mechnikov National University, Faculty of Physics, graduated 2002

Skills
• Backend & scraping: Python, FastAPI, asyncio, Node.js, REST APIs, microservices, async queues, proxies,
anti-bot bypass, large-scale data collection
• Databases & analytics: PostgreSQL, MySQL, ClickHouse, schema design, query optimization, high-load
analytics
• AI / LLM: OpenAI API, Anthropic API, function calling, batch processing scheduling, API cost
optimization, large-scale translation pipelines
• DevOps & servers: Debian / Ubuntu administration, Docker, CI/CD, server monitoring, automated
backups, security fundamentals
• Frontend: React, Preact, Astro (SSR), TypeScript, JavaScript, Vite, Tailwind CSS, ECharts, responsive layouts, data
visualization and dashboards