Volodymyr

VOLODYMYR DEMYDENKO
BACKEND ENGINEER

CONTACTS SUMMARY
Backend engineer with over 3 years of expertise in building scalable and secure
[відкрити контакти](див. вище в блоці «контактна інформація»)
web applications using Python. Proficient in frameworks such as FastAPI,
Litestar, and Flask, with a strong focus on optimizing performance and
[відкрити контакти](див. вище в блоці «контактна інформація»)
improving user experiences. Experienced in API design and integration,
database architecture, and adopting modern software design patterns like
Ukraine, Kyiv
SOLID and GoF. Successfully reduced search latency by 60% and improved
request processing by 120ms through asynchronous programming. A
proactive, results-driven individual with a passion for learning and mastering
new technologies quickly.

SKILLS WORK EXPERIENCE
Python AI Startup 2025 - PRESENT
Lead Backend Developer
REST API
Designed and optimized database architecture, ensuring scalability
gRPC and efficiency for AI-driven applications.
FastAPI, Litestar, Flask Applied OOP, SOLID principles and GoF design patterns to create
maintainable and extensible backend solutions.
SQLAlchemy, Tortoise ORM
Led API integration for AI-driven applications, improving request
Pydantic, msgspec, adaptix processing time by 30% and ensuring seamless model interactions.
PostgreSQL, MySQL Integrated Keycloak for OAuth-based authentication, enhancing
security and access control.
MongoDB, ElasticSearch, Redis
Git ITDeal 2023 - PRESENT
Middle Backend Developer
Linux, MacOS
Engineered Elasticsearch integration, reducing search latency by 60%,
Nginx enhancing response times for 10,000+ daily active users.
Gitlab CI/CD, Github Actions Optimized backend performance, achieving a 60% reduction in search
latency and 120ms faster request processing through asynchronous
Docker, Kubernetes
programming and database optimizations.
Prometheus, Grafana, Developed CI/CD scripts to automate deployment, testing and code
VictoriaMetrics stability.
Contributed to architectural improvements by defining team roles and
RabbitMQ, NATS, Apache Kafka
streamlining module integration.
Clean Architecture
Dexima Software 2022 - 2023
CQRS, Event Sourcing Junior Backend Developer
TDD, DDD, BDD, EDD Participated in rewriting the application from Django to FastAPI.
Developed and refactored endpoints for analytical features in a web
application.
Contributed to building microservices for proxy, notifications and data
processing for trading system.
Worked on API development for a large commercial client.

LANGUAGES EDUCATION
English (B2) Kyiv Polytechnic Institute 2024 - EXPECTED 2026
Ukrainian (Native) Master of Science in Computer Science

Kyiv National Economic University 2016 - 2020
Bachelor of Science in Computer Science