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PETROV IVAN
JAVA BACKEND DEVELOPER

CONTACT SUMMARY
[открыть контакты](см. выше в блоке «контактная информация») Juniour Java backend developer with a strong foundation in C++ (2 years
of experience in DWG file rendering and parsing). Discovered reflection
[открыть контакты](см. выше в блоке «контактная информация») while working with complex file formats, which led to a growing passion
for Java, Spring Boot, and backend development. Currently a Computer
https://t.me/zyvonchikk
Science student, learning modern backend technologies.
https://github.com/vanya201

[открыть контакты](см. выше в блоке «контактная информация»)
WORK EXPERIENCE
n/ivan-petrov-53b361210/
Personal Project 2025 - PRESENT
Friendship Request System
SKILLS
Designed and developed a scalable microservices architecture with
Java 8+ Spring Boot using RESTful APIs, implemented an API Gateway as the
central entry point.
Spring (Core, Boot, Security,
Implemented JWT authentication with RSA encryption. Integrated
MVC, Data JPA) token validation filters in each service
Ensured concurrent transaction handling in the database by designing
REST
transactions with optimistic locking
Hibernate, Servlets Applied database indexing to ensure uniqueness and avoid data
PostgresSQL, MySQL, Redis duplication, improving query performance and integrity
Created a notification service using WebSockets (STOMP) to push
Docker, Gradle real-time notifications to users, integrated with RabbitMQ message
JS, React broker for asynchronous communication
Containerized all services using Docker
GIT
link: https://github.com/vanya201/RequestSystem
LANGUAGES
English B1

EDUCATION

Software Engineering 2022 - 2027
National University "Chernihiv Polytechnic"