Arsenii

ARSENII MEHDALSKYI
JAVA DEVELOPER

CONTACT SUMMARY
[відкрити контакти](див. вище в блоці «контактна інформація») | Telegram Java Developer with 2 years of commercial experience
specializing in high-load FinTech and SaaS ecosystems.
[відкрити контакти](див. вище в блоці «контактна інформація»)
Proven track record in architecting global payment
Github infrastructures and inventory systems processing millions of
daily operations. Expert in Spring Boot, Webflux, and Kafka,
LinkedIn with a strong focus on aligning technical scalability with
business growth and market expansion.
Kyiv, Ukraine | remote

SKILLS EXPERIENCE
JAVA DEVELOPER | 04.2024 – 11.2025 | REMOTE
Languages: Java 8+ (Core, OOP, SOLID),
JavaScript (ES6+), SQL. dotcode
Frameworks: Spring (Boot, Webflux,
Developed and enhanced cloud-based B2B SaaS
Security, Data, Core), Hibernate, JPA.
management platform for one of the Top 50 startups in the
Architecture & Web: Microservices,
USA
REST API, Kafka, ELK Stack,
Actively participated in discussions, design, and
WebSockets, JSON.
development of business logic, collaborating directly with
Database & Migration: PostgreSQL,
the client
MySQL, Liquibase, JDBC.
Designed and implemented key third-party integrations
Cloud & DevOps: GCP, AWS (EC2, S3,
from scratch, as well as refactored and maintained existing
RDS), Kubernetes, Docker, Jenkins,
ones, which were used by 30% of the platform's total user
Maven.
base
Testing: JUnit, Mockito, Testcontainers.
Identified and resolved bottlenecks, improving query
Frontend: Angular, HTML5, CSS3.
performance by several orders of magnitude
Tools & Version Control: Git, Bitbucket,
Jira, Tomcat, Linux (Ubuntu). JAVA DEVELOPER | 11.2025 - 03.2026 | HYBRID
Additional: Algorithms (100+
Tranzzo
CodeWars/LeetCode)
English: Advanced Expanded global reach by integrating international
payment system and methods aligned with core business
goals.
EDUCATION Ensured platform stability through proactive monitoring
TARAS SHEVCHENKO NATIONAL services and real-time transaction visibility.
UNIVERSITY OF KYIV Cut onboarding time by delivering robust testing suites
and comprehensive technical documentation.
Bachelor's degree of Software Engineer 2022 -
2027

ADDITIONAL EDUCATION ACHIEVEMENTS
Java course at Mate Academy (OOP, Java 8+, Winner of Regional SAS in the 'Programming Technologies'
Spring, Hibernate) section
CS50 Winner of Regional Maths | Physics Tournament twice
Effective Java (3rd Edition). Graduated from school with a gold medal
Codewars | Leetcode [ 100+ Tasks Scored 200 on the external independent evaluation in
Completed ] mathematics