Arsenii

ARSENII MEHDALSKYI
JAVA DEVELOPER

CONTACT SUMMARY
[open contact info](look above in the "contact info" section) | Telegram Java Developer with 2 years of commercial experience
specializing in high-load FinTech and SaaS ecosystems.
[open contact info](look above in the "contact info" section)
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