Костянтин

HALANIN KOSTIANTYN
Objective: Junior Java Developer
Email: [open contact info](look above in the "contact info" section)
Phone: [open contact info](look above in the "contact info" section)
Telegram: halacost.t.me
LinkedIn:[open contact info](look above in the "contact info" section)

Purposeful, responsible, hardworking, capable and extremely motivated Java Developer with
1 year work experience. I have deep knowledge of OOP and Design Patterns with no lack of
practical implementing skills. Previously I have worked with Spring and Hibernate. Now I am
looking forward to fitting in a progressive, friendly team with interesting projects.

Skills Education
Java, JDBC, C++, Spring (Core, MVC, JPA, Bachelor of Cybersecurity
Security), Hibernate, Android development (Java),
National Technical University
Firebase, Rest API, Spring Boot, Tomcat, Thymeleaf,
“Dnipro Polytechnic”, Dnipro,
OOP, Design Patterns, JSON, Git, PostgreSQL,
2016 - 2020
Postman, Swagger
Master of Software
Projects Engineering
 Tool for managing an apartment building Dnipro National Railway
January 2022 – August 2022 University, Dnipro, 2020 – 2022
Inner commercial project of SoftServe Inc., NDA.
During my work on this project, my responsibilities were:
support, debug, writing tests, adding new technologies,
migration to microservices, docker containers debugging,
Interests
code refactoring for the application with more than 1000 Electronics, active sports and
daily users. Tech stack: Spring Boot, Git, Docker, music composing
Heroku, Jenkins, PostgreSQL, MongoDB, Kafka,
Spring Gateway, Microservices, JUnit.
Languages
 Blog English – intermediate/
December 2021 – January 2022 upper intermediate
Test project. Developed from scratch. Tech stack: Spring
German – beginner
Boot application without user interface. Postman,
Swagger(OpenApi), PostgreSQL. Ukrainian – native
Russian – native
 Blog
August 2021 – October 2021
Spring application web blog with simple html pages
running Java on Tomcat. Developed complete users,
posts, comments functionality working with PostgreSQL DB

 News App
May 2021 – July 2021
News app for Android written with Java using NewsApi
with sign in to Google/Facebook accounts and
saving favorites feature.