Volodymyr

VOLODYMYR DEMYDENKO
BACKEND ENGINEER

CONTACTS SUMMARY
Backend engineer with over 3 years of expertise in building scalable and secure
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web applications using Python. Proficient in frameworks such as FastAPI,
Litestar, and Flask, with a strong focus on optimizing performance and
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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