Oleksandr

Oleksandr Plyushchov
Java Developer

📍 Dnipro, Ukraine​
📞 [відкрити контакти](див. вище в блоці «контактна інформація»)​
📧 [відкрити контакти](див. вище в блоці «контактна інформація»)

Technical Skills
●​ Languages & Core: Java 17, SQL, JavaScript, SOLID principles.
●​ Frameworks: Spring Boot 2, Spring Data, Servlet API, JSP/JSTL.
●​ Databases: PostgreSQL, Oracle, MS SQL, Sybase.
●​ Data Access & ORM: Hibernate, JDBC.
●​ Testing & Documentation: JUnit, Spring RestDoc.
●​ Build Tools: Maven.
●​ Additional Experience: Kubernetes, Docker, AWS, Terraform, GCP, Cassandra, Flutter.

Professional Experience

Freelance projects | Remote​
February 2023 – Present​
Role: Java Developer

●​ Developed a large-scale microservices solution for supply chain optimization and real-time
cargo tracking.
●​ Designed the backend architecture using Java and Spring Boot; implemented RESTful APIs
documented with Swagger/OpenAPI.
●​ Managed data persistence using Hibernate and PostgreSQL.
●​ Set up containerization and orchestration pipelines using Docker and Kubernetes.
●​ Implemented a comprehensive testing strategy using JUnit, Mockito, and Testcontainers to
ensure code reliability.
●​ AWS, AWS services
●​ Terraform

Luxoft​
March 2022 – July 2022

●​ Participated in the modernization of a distributed payment processing system for a major
European financial institution.
●​ Developed and optimized microservices using Spring Boot and Spring Cloud, ensuring high
availability and fault tolerance.
 ●​ Environment: Java 11/17, Spring Boot, PostgreSQL, Docker, Kubernetes.

Raiffeisen Bank Aval​
February 2021 – April 2022​
Role: Java Developer

●​ Contributed to the development of critical high-load banking systems.
●​ Ensured infrastructure reliability and efficiency through integration testing with Docker
containers.
●​ Optimized data processing and caching mechanisms using PostgreSQL and Redis.
●​ Environment: Java 11, Spring Boot 2, Spring Data, Hibernate, Maven, Spring RestDoc.

A-Bank​
October 2018 – February 2021​
Role: Java Developer

●​ Enhanced the bank's technological capabilities by developing scalable fintech solutions.
●​ Implemented core banking logic and integration modules using the Spring ecosystem.
●​ Conducted rigorous unit and integration testing to maintain high system stability.
●​ Environment: Java 11, Spring Boot 2, Hibernate, PostgreSQL, Redis, Docker, JUnit, Mockito.

DBO-SOFT​
August 2017 – August 2018​
Role: Java Developer

●​ Participated in the full-cycle development of comprehensive banking software (ABS).
●​ Worked in a multi-database environment, writing complex queries and procedures for Sybase,
PostgreSQL, MS SQL, and Oracle.
●​ Maintained legacy components and developed new features using Servlet API and JSP/JSTL.
●​ Environment: Spring Framework, Hibernate, JDBC.

Education

​National Mining University, Department of Automation and Computer Systems
2014 – Higher Education
Dnipro
​
Pavlohrad technical college of NMU, Maintenance of computer and intellectual systems and networks
2010 - secondary education
Pavlohrad