Денис

Denis Siromlya – Junior Java Developer

CONTACTS

Phone: [open contact info](look above in the "contact info" section)

Email: [open contact info](look above in the "contact info" section)

Telegram: @avatariser

GitHub: avatarisCSN/Spring_Rest_Notes

Location: Odessa, Ukraine

SUMMARY

Motivated and disciplined Junior Java Developer with solid theoretical knowledge and practical
experience gained through independent projects. Strong focus on backend development using Java,
REST, and relational databases. I quickly learn new technologies, analyze problems effectively, and
enjoy working with structured code. Seeking my first commercial opportunity in a team where I can
grow and contribute to real projects.

TECH SKILLS

• Java SE: OOP, Collections, Generics, Exceptions

• Spring Boot: Controllers, Services, Repositories, REST API

• Spring Security + JWT: registration, authorization, filters, tokens

• Hibernate / JPA: entities, relationships, annotations

• JDBC, MySQL, SQL (CRUD, joins)

• Git, GitHub, SourceTree

• HTML/CSS (basic)

• JavaScript / Node.js: worked with game scripts

• Tools: IntelliJ IDEA, Eclipse, Visual Studio

• Unity (basic)

SOFT SKILLS

Analytical thinking, Fast learning, Responsibility, Attention to detail, Self-discipline

PROJECT EXPERIENCE

1. Notes REST Application — Java + Spring Boot

Demo: README on GitHub

Code: github.com/avatarisCSN/Spring_Rest_Notes

Full REST backend with registration, JWT authentication, users, and CRUD for notes.
2. Diploma / Coursework — Java

Educational project showing Java fundamentals and architecture.

3. Browser Game Bot Scripts — Node.js

Worked with Node.js scripts: debugging, modifying, improving logic.

WORK EXPERIENCE

No commercial experience. Practical experience obtained through independent development and
training projects.

EDUCATION

GoIT — Java Developer

Odessa National Technological University (ONTU)

Bachelor (2021) – Computer Engineering & Cybersecurity

LANGUAGES

English — upper-intermediate

Ukrainian — advanced

Russian — native