Valentyn B.

Java Middle Developer

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Valentyn B.

Information

Available

Employment

Full-time

Part-time

Expertise

BackEnd

Location

Kharkiv, Ukraine

Work Experience

3+ years

Skills

Spring

Java

Languages

Ukrainian Native

English Upper-Intermediate

Portfolio

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CV

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Experienced Java developer with over 3 years of experience developing high quality applications. I have deep knowledge in the field of object-oriented programming, skills in working with popular frameworks and tools. Successfully implemented projects in various fields, including the healthcare sector, e-commerce

Skills:

Programming languages: Java, SQL, JavaScript
Frameworks: Spring (Boot, MVC), Hibernate, JUnit
Databases: PostgreSQL, MySQL
Tools: Git, Maven, Docker
Methodologies: Agile (Scrum, Kanban)
Additional: Experience with RESTful API, knowledge of HTML/CSS basics, working with CI/CD

Experience:

Java Developer at AVADA MEDIA, Ukraine

Operating period: January 2021 – present

Development and support of multi-tier web applications based on Java EE.
Implementation of new functionality and optimization of existing code.
Working with databases (PostgreSQL, MySQL) to provide fast and reliable access to data.
RESTful API development and integration with external services.
Using the Spring Framework (Spring Boot, Spring MVC) to build microservices.
Participation in the full development cycle including requirements analysis, coding, testing and deployment.
Active participation in Agile/Scrum processes.

Project: CRM system for an online store

Development of modules for managing client data and applications.
Optimize application and database performance.
Participation in the design of the system architecture.

Junior Java Developer - NDA, Ukraine

Operating period: June 2018 – December 2020

Participation in the development and support of corporate web applications in Java.
Creating and configuring databases using Hibernate ORM.
Developing unit tests and integration tests to ensure code quality.
Teamwork using the Scrum methodology.

Project: Online store

Participated in backend development in Java using Spring Boot.
Implemented functionality for managing the product catalog, shopping cart and order system.
Integration with payment systems and delivery services.