Нікіта

Nikita Boiko
Java Developer
Results-driven Java Developer with 2 years of experience building scalable backend systems and RESTful
APIs using Spring Boot . Passionate about writing clean, maintainable code and delivering high-quality
solutions in Agile environments.

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Warszawa, Poland tg: @nikitaa211

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WORK EXPERIENCE SKILLS
Java Developer Java, Java Core, Collections, OOP, SOLID, Multithreading,
Quality over quantity React, JavaScript, REST API, WebSockets
08/2024 - 09/2025,
Achievements/Tasks Hibernate, JDBC, MySQL, PostgresQL, MongoDB
Enhanced system functionality for calculating order items
with discounts, dates, price etc; Spring Core, Spring Web, Spring Security, Spring Data,
Created rest, event-driven interfaces, Git Actions pipelines. Spring Cloud
Introduced asyncrounous handling for heavy-weight queries;
Responsible for service development, performance Servlet, JSP, Tomcat, HTML, CSS, XML, JSON
analytics, and integration with third-party API and DB;
Optimized backoffice handling for the orders updates and JUnit, Maven, Liquibase, Mockito, Test containers, Spock
products delivery flow from creation to shipping, increased Framework, Docker / Docker compose, Swagger, CI/CD
order processing performance;
Took part in architectural meetings. Git, GitHub, GitLab

IntelliJ IDEA, Virtual VM, Postman, SonarQube, JIRA,
Java Developer SCRUM, Confluence
VARTEQ Inc.
12/2022 - 07/2024, Windows, macOS, Linux
Achievements/Tasks
Developed core business logic of the application using Azure Cloud S3, Kubernetes, Kafka, Redis, Ansible
Spring Boot, Spring Data JPA, REST architecture and other
Spring modules (Security, AOP), participated in code reviews;
Designed and implemented the database structure
(PostgreSQL), optimised SQL queries, defined entities,
relationships; PERSONAL PROJECTS
Integrated RESTful APIs with FE and documentes APIs. Library Management App (11/2022 - 05/2023)
Integrated with third party partner services; Implemented web application for searching and reserving
Wrote integration and unit tests using JUnit5 and Spock textbooks with real-time availability;
frameworks to ensure service reliability. Centralized loan tracking (who borrowed what, reservation and
return dates stored in DB);
Deployed to production — significantly improved university library
operations and reduced manual workload.

EDUCATION
Bachelor's degree - Software engineer
COURSES
Kharkiv National University of Economics
named after Semen Kuznets Java course at Mate Academy (06/2023 - 11/2023)
09/2020 - 06/2024, Kharkiv
Udemy courses - Spring + Hibernate, GIT, SQL (to Oracle
certification) (07/2023 - 12/2023)

LANGUAGES
Ukrainian Enlgish
Full Professional Proficiency Professional Working Proficiency