Dzhura

ROSTYSLAV DZHURA
Python / LLM Engineer
Dnipro, Ukraine | [відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація»)
Telegram: @okien1

SUMMARY
Python Developer with a solid foundation in Applied Mathematics and experience in backend
development and AI-driven solutions. Focused on building reliable data processing systems and
integrating self-hosted LLMs into production tasks. Experienced in handling high-concurrency
data streams and complex entity extraction from unstructured sources.

TECHNICAL STACK
 Languages: Python (Expert), SQL, Basic C++.
 AI & LLM: Self-hosted LLMs (Mistral, Ollama), Prompt Engineering, RAG Pipelines, Entity
Disambiguation.
 Backend: FastAPI, Django, Django Rest Framework (DRF).
 Data & Concurrency: PostgreSQL, Redis, RabbitMQ, ETL/ELT optimization.
 Tools: Docker, Git, Linux environment.

PROFESSIONAL EXPERIENCE
Python Backend Developer | September 2025 – December 2025

 Developed resilient backend layers using FastAPI to aggregate data from multiple external
APIs into a unified stream.
 Managed high-concurrency data flows using RabbitMQ and Redis for parallel worker
synchronization.
 Optimized database interaction and optimized PostgreSQL queries to maintain stability under
high-concurrency conditions.

DataOps Engineer / Python Developer | February 2024 – August 2025

 Implemented high-precision entity extraction from low-quality OCR data using self-hosted
LLMs (Mistral).
 Designed context-aware prompt strategies to resolve complex data conflicts (e.g.,
Patient/Doctor/Insurer identification).
 Developed custom scripts for automated data validation and cleaning in multi-step processing
pipelines.
 Containerized data processing microservices using Docker for consistent deployments.

Digital Analytic | AdIndex | June 2021 – January 2022

 Performed data analysis using Python and R to assess marketing performance through A/B
testing.
PERSONAL PROJECTS
Onigari

 https://github.com/dzhurarostislav/Project_Onigari

A specialized tool that aggregates vacancies from various job platforms and analyzes them
using custom logic to distinguish between reputable companies and those with poor
employment practices.

EDUCATION
Bachelor of Applied Mathematics | Dnipro National University (DNU) | 2017 – 2021

Python Developer Certification | Mate Academy | 2023 – 2024