Антон

ANTON LYSENKO
Java Developer
[open contact info](look above in the "contact info" section) • [open contact info](look above in the "contact info" section) • [open contact info](look above in the "contact info" section) • Kyiv, Ukraine

PROFESSIONAL SUMMARY
Java Developer with professional experience developing and maintaining software for retail, logistics, and web applications.
Hands-on experience with Spring, Spring Boot, Hibernate/JPA, REST APIs, PostgreSQL, MySQL, Kafka, Spring Cloud, Eureka,
security, testing, and AWS services. Experienced in feature development, troubleshooting, integrations, database applications, and
collaborative work with senior developers and architects.

TECHNICAL SKILLS
Languages: Java, JavaScript

Backend: Spring Core, Spring MVC, Spring Boot, Spring Security, Spring Data JPA, Hibernate, HQL, JDBC, Java EE, Servlets

Microservices & Messaging: Spring Cloud, Eureka Server, Apache Kafka

APIs & Documentation: REST API, Swagger, Jackson

Databases: PostgreSQL, MySQL, MongoDB, H2

Testing: JUnit

Web: Thymeleaf, JSP, JSTL, HTML, CSS, Bootstrap

Cloud & Infrastructure: AWS S3, AWS Lambda, Tomcat, Linux, Heroku

Other: MapStruct, OpenCSV, Quartz Scheduler, JNDI

PROFESSIONAL EXPERIENCE
Java Developer — SystemGroup | 09/2024 – 07/2026 | Kyiv, Ukraine
• Maintained and enhanced software for cash registers and software cash registers.

• Developed new features and fixed defects, including issues in a Zebra scanner driver.

• Developed a JavaFX waiting scene for the cash register workflow.

• Created an import/export application for CSV and JSON provider data, including parsing files and storing data in a database.

• Integrated cashier registers with PRRO and sales websites.

• Enhanced and modified customer loyalty-system functionality.

• Integrated REST APIs and maintained Swagger API documentation.
Junior Java Developer — TrackEnsure | 01/2022 – 07/2024 | Kyiv, Ukraine
• Maintained existing software and implemented new features.

• Troubleshot and tested software and participated in collaborative team tasks.

• Worked with senior developers through mentoring and weekly technical meetings.

• Worked with architects to develop and implement technical solutions.

• Created working design documentation.
Linux System Administrator — ITSTAR | 10/2020 – 01/2022 | Kyiv, Ukraine
• Configured servers and secure connections.

• Automated software configuration and deployment.

• Supported office administration and people-related IT tasks.

SELECTED PROJECTS
Import/Export Provider & WaitScene — Spring Core, Spring MVC, Hibernate, HQL, Tomcat, JUnit, Swagger, OpenCSV,
PostgreSQL. Built an application for importing/exporting CSV and JSON data between files and a database, with scheduled
processing using Quartz. Developed a JavaFX waiting scene triggered by a configured time.

Cart-Shopping, Kafka & Cloud Microservices — Spring Boot, Spring Security, Spring Data JPA, Thymeleaf, Kafka, MapStruct,
Spring Cloud. Implemented role-based features, email-based user recovery, shopping cart functionality, Kafka producer/consumer
flows, DTO mapping, and multiple microservices communicating across services. Implemented service discovery with Eureka and
worked with AWS S3 and AWS Lambda.

CourseProject & Schedule — Spring Core, Spring MVC, Hibernate, HQL, JSP, JSTL, Bootstrap, Tomcat, JUnit, Java EE,
Servlets, JDBC, JNDI, Jackson, Heroku. Built task-management functionality with admin/user roles. Worked on
employee-schedule optimization business logic and statistics retrieval, including MongoDB caching, JWT authentication, API/file
data processing, and persistence.

KPacTask — Download File — Spring Core, Spring MVC, JDBC, MySQL, Tomcat, JSP, HTML, CSS, Spring Boot, Spring
Security, Spring Data JPA, Thymeleaf. Developed entity-management functionality, role-based endpoint authorization, SQL-script
download, and SQL query optimization.

Email Application — Java web application for mailbox file operations, including fixed-size file upload/download and multiple-file
upload.

EDUCATION
Master’s Degree, Software Engineering / Multimedia Systems and Software for Gaming Applications — Donetsk National
Technical University, 2017–2018

Bachelor’s Degree, Software Development and Testing Technician — Donetsk National Technical University, 2013–2017

LANGUAGES
Ukrainian: Native Russian: Native English: Intermediate