Sava

SAVA
RACHYNSKYI
Junior Java Dev

PROFILE INFO
IT student at PJATK, passionate about Java backend development. I focus on
writing clean, testable code using Spring Boot and Hibernate. My analytical
EDUCATION approach helps me solve real business problems, not just write code. I am
2024 - 2028 eager to expand my automation skills in a professional environment. I am

POLISH-JAPANESE ACADEMY OF looking for a Junior Java Developer role to learn from experienced engineers

INFORMATION TECHNOLOGY and contribute to reliable software. My background in recruitment has also

Bachelor Computer Science sharpened my ability to communicate clearly and manage tasks with
precision. I truly value hands-on collaboration, and I am highly motivated to
(In progress)
SOFT SKILLS tackle challenging projects while growing into a well-rounded developer
who consistently delivers high-quality, practical solutions for the team
Rapid Learning
Analytical Thinking PROJECTS
Problem Solving MINIMALIST CRM SYSTEM | JAVA 21, SPRING BOOT, JPA, JUNIT 5
Communication skills Designed and implemented a CRM system based on a three-tier
Critical Thinking architecture (Controller-Service-Repository).
Documentation & Reporting Developed REST API communication integrated with an asynchronous
frontend (Vanilla JS).
TECHNICAL SKILLS Ensured high code stability by covering business logic with
comprehensive unit tests (JUnit/Mockito).
JAVA CORE
LINK: HTTPS://GITHUB.COM/SAVA-RACHYNSKYI/MYCRM-SPRINGBOOT-
SPRING BOOT | HIBERNATE SIMPLE-PROGRAM.GIT
AWS & CLOUDFORMATION (IAC)
Multi-Tenant AWS Infrastructure | Terraform, AWS ECS
TERRAFORM
Automated the deployment of a scalable multi-tenant architecture on
SQL (MS SQL SERVER / ORACLE SQL)
AWS using Infrastructure as Code (Terraform).
REST API Implemented client data isolation at both the file system level (EFS) and
DOCKER the database level (RDS).
UML (UNIFIED MODELING LANGUAGE) Configured a two-tier auto-scaling system for EC2 compute nodes and
MS OFFICE ECS containers.
GIT | GITHUB
LINK: HTTPS://GITHUB.COM/SAVA-RACHYNSKYI/TP-ECS-WP-PROJ.GIT
HRMS & Candidate Matching System | Oracle SQL, PL/SQL
LANGUAGES Designed and implemented a relational database architecture
compliant with 3NF to eliminate data redundancy and manage
Polish (C1) complex many-to-many relationships.

English (B2) Automated core recruitment workflows using custom PL/SQL
procedures, including automated offer expiration handling and a
Ukrainian (Native) weighted skills-matching algorithm.

Russian (С1) Enforced data integrity and business rules by creating PL/SQL triggers
for input validation and schedule conflict prevention with cascade
operations.
Developed optimized analytical queries utilizing joins, aggregated
CONTACT metrics, correlated subqueries, and bulk data modifications.
LINK: HTTPS://GITHUB.COM/SAVA-RACHYNSKYI/ORACLE-RECRUITMENT-DATABASE-
[відкрити контакти](див. вище в блоці «контактна інформація») SYSTEM.GIT
Wyrażam zgodę na przetwarzanie danych osobowych zawartych w niniejszym dokumencie do realizacji
[відкрити контакти](див. вище в блоці «контактна інформація») procesu rekrutacji zgodnie z ustawą z dnia 10 maja 2018 roku o ochronie danych osobowych (Dz. Ustaw z
2018, poz. 1000) oraz zgodnie z Rozporządzeniem Parlamentu Europejskiego i Rady (UE) 2016/679 z dnia 27

Warsaw, Poland kwietnia 2016 r. (RODO).