Роман

HRINENKO ROMAN
Java Developer
[відкрити контакти](див. вище в блоці «контактна інформація») [відкрити контакти](див. вище в блоці «контактна інформація») Ukraine, Kyiv
roman-hrinenko-975707354 github.com/bombk1n

CAREER OBJECTIVE SKILLS
I'm a Java Developer with over 1 year of commercial experience in a large- Java
scale startup project focused on hotel reservation systems WinWinTravel. Spring Framework
Spring Boot
My goal is to build reliable, scalable software and continuously grow as a Spring Data
developer. I work with Java, Spring Boot, and PostgreSQL to create backend Spring Security
systems and RESTful APIs, besides I have experience with Angular for full Spring Cloud
stack development. SQL
Hibernate
I enjoy learning new technologies, writing clean code, and contributing to PostgreSQL
team projects that solve real-world problems. Seeking to add value, JPA
growmy skillset, and participate in interesting projects. JDBC
MongoDB

EXPERIENCE Redis
RESTful
Microservices
WinWin.Travel Docker
Java Backend Developer Kafka
March 2024 - Present Kubernetes
JUnit
Developed and maintained several backend features using Mockito
Java and Spring Boot, helping to reduce bug reports from QA Angular
by 23%. Git
Participated in a cross-functional team of 10 developers, Maven
contributing to sprint planning, code reviews, and daily IntelliJ IDEA
standups to ensure consistency and efficient implementation Jira
in an agile environment. Postman
Designed and optimized SQL queries for PostgreSQL,
improving report generation speed by 21% on average.
Wrote unit and integration tests using JUnit and Mockito,
helping to reduce production-level errors by 15% during the
internship period. EDUCATION
Collaborated with senior developer to refactor legacy
Bachelor of
codebase, increasing overall code readability and test
coverage by 18%. Computer Science National
Identified and fixed errors in documentation and API Technical University of
contracts, helping the frontend and QA teams reduce Ukraine “Igor Sikorsky Kyiv
integration errors by 20%, and improving cross-team Polytechnic Institute”
collaboration.
2024 - 2028
Faculty FICE(ФІОТ)
Specialty 121 – Software Engineering