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ROMAN NALAPKO
PYTHON BACKEND & AI ENGINEER
Izmail, Ukraine | Remote | [open contact info](look above in the "contact info" section)
LinkedIn | GitHub | Djinni

PROFESSIONAL SUMMARY
Python backend and AI engineer building production-oriented RAG systems, asynchronous APIs, automation
workflows and LLM-powered applications. Hands-on experience with FastAPI, PostgreSQL, Qdrant, Docker and
OpenAI-compatible model infrastructure. Since 2023, delivered paid referral-based freelance projects from
implementation through testing, handoff and deployment setup.

TECHNICAL SKILLS
Backend: Python, FastAPI, asyncio, REST APIs, SQLAlchemy, Pydantic, webhooks
AI / LLM: RAG, LLM applications, embeddings, semantic search, prompt engineering, OpenAI-compatible APIs, Claude
API, Ollama, LM Studio
Data: PostgreSQL, MySQL, Qdrant, ChromaDB, pandas, BeautifulSoup, Playwright, aiohttp
Automation & Delivery: n8n, Make.com, Telegram Bot API, Docker, Docker Compose, Linux, Git, GitHub Actions

EXPERIENCE
Python Backend & AI Engineer
Freelance / Paid Referral-Based Projects | Mar 2023 - Present | Remote
- Delivered paid Python projects referred by private clients, including backend services, API integrations and automation
workflows.
- Developed RAG systems using FastAPI, PostgreSQL, Qdrant and local or cloud LLM infrastructure.
- Designed asynchronous REST APIs, data pipelines and webhook-based architectures with asyncio and SQLAlchemy.
- Created Telegram assistants and AI workflows integrating LLM APIs, vector search and external services.
- Containerized applications with Docker Compose and configured linting, tests and CI workflows.
- Developed public-data collection and processing pipelines with structured CSV/XLSX exports.
Core stack: Python, FastAPI, PostgreSQL, SQLAlchemy, Qdrant, Docker, asyncio, LLM APIs

SELECTED PROJECTS
AI RAG Platform | GitHub
Local-first document intelligence backend demonstrating production-oriented RAG architecture.
Stack: Python, FastAPI, PostgreSQL, SQLAlchemy, Qdrant, Docker, LM Studio
- Implemented multi-tenant knowledge bases, PDF/TXT ingestion, semantic retrieval and streaming AI chat.
- Added conversation memory, evaluation workflows, structured logging, request IDs, migrations and CI.
Telegram Automation Toolkit
Automation toolkit for collecting public Telegram data and supporting configurable workflow tasks.
Stack: Python, asyncio, Telegram API, data processing
- Built asynchronous collection, filtering and structured processing components.
- Prepared configuration, error handling and reusable execution workflows for client handoff.
Instagram Content Scraper
Public-data collection tool for posts and reels with date filtering and spreadsheet export.
Stack: Python, Playwright, pandas, XLSX
- Automated browser-based collection where static HTTP extraction was insufficient.
- Normalized collected records and exported structured results to XLSX.

Roman Nalapko | Resume | 1

SELECTED PROJECTS (CONTINUED)
AI & API Automation Workflows
Reusable workflow automation for API-driven content processing and operational tasks.
Stack: n8n, Python, OpenAI API, REST APIs, webhooks
- Integrated external APIs and webhook triggers into multi-step automated workflows.
- Added validation, retry paths and error handling for reliable execution and handoff.
Responsive Business Website
Business website delivery covering page structure, mobile adaptation and search-friendly content setup.
Stack: Wix, responsive design, on-page SEO
- Configured responsive layouts and core business pages for desktop and mobile visitors.
- Prepared essential on-page SEO settings and final client handoff.

EDUCATION
Bachelor's Program in Information Systems and Technologies (F6)
Danube Institute of National University 'Odesa Maritime Academy' | 2026 - 2030
Admission confirmed. Programming track: software development, web applications, algorithms and data structures,
information systems and software architecture.
Coursework toward Junior Bachelor in Navigation and Ship Handling (incomplete)
Danube Professional College of National University 'Odesa Maritime Academy' | 2023 - 2026

CERTIFICATIONS
- Linux Commands & Shell Scripting Essentials V2 - IBM Skills Network / Coursera
- Practical Introduction to Linux Commands and Shell Scripting - IBM
- Database Integration and Management - Microsoft
- Prompt Engineering - Vanderbilt University
- Trustworthy Generative AI - Vanderbilt University
- ChatGPT Advanced Data Analysis - Vanderbilt University
- Prompt Engineering for ChatGPT - Vanderbilt University

LANGUAGES
Ukrainian - Native | Russian - Native | English - B1 Intermediate

Roman Nalapko | Resume | 2