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Work experience

Java Developer

from 12.2024 to now (1 year 2 months)
Applied Methods GmbH, Дистанційно (IT)

Implemented new features in microservice-based MongoDB projects.
Developed a reactive service using Spring WebFlux and Spring Security OAuth 2.0 implementing the LTI 2.0 standard.
Designed and maintained CI/CD pipelines including automated testing and deployment.
Created integration tests achieving ~90% code coverage and improving reliability.
Closed ~120 tasks including new service development, third-party integrations, performance optimization, and bug fixing.

Java developer

from 05.2024 to 11.2024 (7 months)
Freelance, Дистанційно (IT)

Contributed to the architecture and development of an educational platform using PostgreSQL, Telegram API, RabbitMQ, and GPT-based models.

IT Consultant (-)

from 07.2011 to 09.2011 (3 months)
UNICEF, Дистанційно (Неприбуткові, благодійні та громадські організації)

Developed software with a built-in data replication mechanism to distribute medical assistance efficiently.
Enabled fast data collection from 10+ offices, reducing warehouse inventory verification time from several days to 1–2 days.

Lead programmer, IT director

from 12.2007 to 02.2022 (14 years 3 months)
AzovElectroStal Ltd, Маріуполь (Машинобудування)

Extended a RESTful API using Java and Spring Framework to synchronize ERP data with the central repository, eliminating 100% of paper submissions and ensuring same-day data freshness.
Implemented new ERP system functionality, increasing operational automation by 80%, report generation and payroll calculation for 5,000 employees.
Led the on-time completion of ~90% of ERP automation projects.

Senior Programmer

from 04.2005 to 12.2007 (2 years 9 months)
Illych Steel Mill JSC, Маріуполь (Сільське господарство, агробізнес)

Created a Java application for automated upload and transmission of replicated data via the SMTP protocol from the accounting systems of 45 branches to the central system.

Database Developer

from 09.2001 to 04.2005 (3 years 8 months)
International Relief and Development Inc., Маріуполь (Неприбуткові, благодійні та громадські організації)

Developed software solutions for medical centers, humanitarian assistance, and payroll calculation.
Processed over 250,000 patient visits and calculated salaries for more than 40 employees.

Programmer

from 04.1999 to 09.2001 (2 years 6 months)
Tax Inspection, Mangush (Державні організації)

Process automatization. (C++, FoxPro, VBA, SQL)

Education

Donetsk State University

Applied mathematics, Donetsk
Higher, from 1993 to 1998 (5 years)

Knowledge and skills

• Дисциплінованість
• Java
• HTML
• Git
• Spring Framework
• CSS
• MySQL
• SQL
• Hibernate
• Знання принципів ООП
• Apache Maven
• Java Core
• Spring Boot
• IntelliJ IDEA
• PostgreSQL
• Знання технологій JDBC
• JUnit
• MS Office
• Spring MVC
• Spring Security
• Spring Data
• Knowledge of design patterns
• Docker Compose
• JSTL
• JPA
• Postman
• JSON
• XML
• VBA
• MS Access
• C++ Builder
• SOLID Principles
• REST
• Spring Web
• Elastic Beanstalk
• Amazon EC2
• Amazon RDS
• Docker

Language proficiencies

• Ukrainian — fluent
• English — above average
• German — average