Павло

LOCATION
Irpin, Kyiv Region
EMAIL

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Pavlo PHONE

Dovhaliuk
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TELEGRAM

MIDDLE+ PYTHON BACKEND DEVELOPER @benelungo

01 Experience 02 Profile

Backend Python Developer 2024 — Present Python Backend Developer with
4+ years of experience
PAM
architecting high-load production
› Architected high-load microservices (FastAPI, Celery, PostgreSQL, Redis) serving 50K+ daily requests with 99.9% systems and integrating AI/ML
uptime solutions. Deep expertise in
› Designed and deployed RAG-based pipelines with LangChain, ChromaDB, and OpenAI API, powering intelligent product FastAPI, async programming,
features and microservices. Hands-on
› Optimized PostgreSQL data layer and Redis caching strategies, cutting average API latency by 40% experience with LLMs, RAG
› Integrated ML models (XGBoost, OpenCV, PyTorch) into production services for predictive analytics and computer vision pipelines, and neural network
› Built automated data pipelines (Playwright, aiohttp) processing 100K+ records daily; mentored juniors, led code reviews deployment in production. Skilled
in system design, performance
Computer Science Lecturer 2021 — 2023 optimization, and mentoring
Self-employed engineering teams.

› Designed and delivered a structured curriculum covering Python, OOP, databases, and system design for 50+ students 03 Skills
› Mentored aspiring developers on clean architecture, SOLID principles, and production-level coding standards
BACKEND & FRAMEWORKS
Python Backend Developer 2020 — 2022
Python 3 FastAPI Flask
Freelance
Django asyncio Pydantic
› Independently delivered 10+ backend projects for clients in data processing and AI domains, managing full SDLC
SQLAlchemy Celery
› Designed scalable ETL pipelines and automation systems, reducing clients' manual workload by up to 70%
AI / ML / LLM

OpenAI API LangChain

RAG PyTorch XGBoost

OpenCV Prompt Eng.

ChromaDB

DATA & MESSAGING

PostgreSQL Redis

MongoDB RabbitMQ

Kafka

DEVOPS & INFRA

Docker Kubernetes AWS

CI/CD GitHub Actions

Linux Git

QUALITY & ARCHITECTURE

Microservices REST / gRPC

pytest mypy Alembic

04 Education

BSc Software Engineering
Taras Shevchenko National
University of Kyiv
2019 — 2023

AWS Cloud Technical
Essentials
Amazon Web Services
2022

05 Languages

Ukrainian Native

English