Артур

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Arthur Fenchenko
Ukraine [відкрити контакти](див. вище в блоці «контактна інформація») [відкрити контакти](див. вище в блоці «контактна інформація»)

SKILLS
Programming languages: Java, JavaScript Databases: MySQL, PostgreSQL, MongoDB, Hibernate
Web & Application Frameworks: Spring Boot, Spring Message Streaming: Kafka, RabbitMQ
Build Tools: Maven, Gradle Caching: Redis, Caffeine
DevOps & Container: Git, Git Actions, Docker, Security: OAuth2, JWT, Spring Security
Kubernetes, Linux Monitoring & Observability: Elasticsearch
Cloud Platform: AWS(S3, EC2), Azure, DigitalOcean Testing: Junit5, Mockito, TDD, Tomcat

PROFESSIONAL EXPERIENCE
WinWin.travel June 2024 – October 2025
• Led the integration with a major partner, enabling seamless hotel search and booking functionality.
• Optimized hotel search performance, reducing response time by 18% and improving overall user experience.
• Ensured reliability of hotel reservations by designing and maintaining scalable booking workflows, decreasing booking
failures.
• Introduced Liquibase for database change management, streamlining deployment processes and reducing errors.
• Developed and integrated promo code functionality, supporting marketing campaigns and increasing customer engagement.

PERSONAL PROJECTS
Video recommendation system
github.com/x036ox/video • October 2023 - October 2024
• Tech stack: Spring Boot, Kafka, Redis, Keycloak, OAuth2, Docker, MySQL, MinIO, ReactJs.
• Developed an application that handles video-related tasks, using Spring Boot and React, supporting user authorization
with different roles for them and placing a strong emphasis on security. The system is composed of multiple
microservices, that are connected by Kafka and HTTP, which improves maintainablility.
• Implemented caching that reduces database requests under heavy load by 30%. Videos are stored in object storage,
compatible with Amazon S3.

Movie downloader
github.com/x036ox/movie-downloader • September 2024 – December 2024
• Tech stack: Spring Boot, Amazon S3, Selenuim, Telegram API.
• Constructed a movie downloader using Spring Boot, allowing to impelement various User Interfaces, for example using
Telegram Bot Api or console.
• Utilized various of design patterns while developing, improving scalability and maitainability.
• Currently enhancing with plans to support downloading every video from the web page.

Flight tracker
github.com/orgs/flights-team/repositories • August 2024 – December 2024
• Tech stack: Spring Boot, RabbitMQ, MongoDB, ReactJs.
• Developed an application using Spring Boot, that allows users to create flights on the map and track them in real time. The
project consists of several microservices connected via RabbitMQ. It utilizes WebSocket to transfer flight data to the
frontend.
• Implemented batch requesting for big data, reducing database operations latency by 50%.

EDUCATION
Bachelor's degree, Computer Science
Kharkiv National University of Radioelectronics • Kharkiv, Ukraine • 2021 - 2025

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