Evgeniy

Evgeniy Popadiuk
Java Developer (Spring Boot) [open contact info](look above in the "contact info" section) | Telegram: @chchch_sbk |
GitHub: github.com/memento370 | Project: l2-absolute.com

SUMMARY
Junior developer with 1.5 years of commercial experience in C#/.NET and Angular, and hands-on
Java/Spring practice in a production-like pet project. Building and maintaining a Java Spring Boot backend
with Spring Security, JWT authentication, API hardening (CORS allowlist, rate limiting) and MySQL
persistence. Target role: Junior Java Developer.

CORE TECHNOLOGIES
Java Spring Boot, Spring MVC, Spring Security, Spring Data JPA (Hibernate), Maven/Gradle, JUnit (basic)

Database MySQL, PostgreSQL, Oracle PL/SQL (stored procedures)

Front-end TypeScript, Angular

Tools Git, Postman, Jenkins; OOP, SOLID; microservices (commercial exp)

EXPERIENCE
l2-absolute.com - Java Full-Stack Pet Project
01.03.2025 - present

● Built Spring Boot REST API for a Lineage 2 server website/forum; Angular (TypeScript) UI; MySQL.
● Implemented stateless auth: JWT + Spring Security authorization; separated public and protected
endpoints.
● Added password hashing (Whirlpool) + email verification; secure login validation.
● Configured CORS allowlist and a custom rate limiting filter (1 request/second/IP) to reduce spam/DoS.
● Maintained/modified decompiled Java server scripts; runs a fully working server.
Repo: github.com/memento370/ABSOLUTE_API

Medirent Solutions - Full-Stack Developer (Outsourcing)
02.10.2023 - 14.02.2025

• Delivered features and maintenance for multiple client projects (mostly government systems/registers)
across different teams.
• Front-end: Angular/TypeScript forms - UI redesign, updates, and ongoing support.
• Back-end: C#/.NET microservices - maintained existing services and built new components; processed
documents, images, and other data.
• Database: Oracle PL/SQL - data retrieval logic implemented in stored procedures.

EDUCATION & LANGUAGES
Education Bachelor of Management (2018); Kyiv Technical School of Electronic Devices (2014)

Languages Ukrainian - native; English - A2