Yaroslav

Yaroslav Lopatkin (Java, Spring Framework)
[open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section)

ï LinkedIn | § GitHub

Szczecin, Poland

O BJECTIVE
Backend Developer with 1 year of experience in designing and implementing server-side logic, REST APIs,
and microservices architecture to deliver modular and maintainable solutions. Participated in a project,
using Scrum methodology to ensure efficient task allocation for building a scalable application.

S KILLS
Java, Spring (Core, Boot, Data JPA, Security, Cloud), Microservices architecture, Hibernate, OpenFeign,
RabbitMQ, Consul, API Gateway, RESTful API, Maven, PostgreSQL, Redis, Java Database Connection:
JDBC, Flyway, MinIO, Azure DevOps, Scrum, Docker, MapStruct, Git, JSON Web Token

P ROJECTS
• ProLeagueManager – League & Tournament Management Platform Nov 2024 – Apr 2025
Mentored by Tietoevry
Java, Spring (Core, Boot, Data JPA, Security, Cloud) §
Consul, OpenFeign, RabbitMQ, Hibernate, API Gateway
Redis, PostgreSQL, Flyway, OAuth 2.0, RESTful API,
Maven, JSON Web Token, Docker, MinIO, Azure Ai Text, Microservices Architecture
◦ Designed and led the backend architecture including service separation, REST communication with

OpenFeign, and modular database schema.
◦ Coordinated a Scrum-based team of 4 developers; managed sprints, PRs, and task assignments.
◦ Implemented JWT-based authentication, API Gateway routing, and file upload using MinIO.
◦ Integrated Redis and RabbitMQ for asynchronous processing and temporary data storage.
◦ Improved API response times and system reliability by introducing fallback mechanisms and optimizing
asynchronous communication.

• Animal Shelter – Pet Guardianship Management System Aug 2024 – Sep 2024
Java, Spring (Core, Boot, Data JPA, Security) §
Hibernate, Redis, Flyway, PostgreSQL
MapStruct, Lombok, Maven, Docker, MinIO
◦ Created modules for guardianship request handling and user application tracking.
◦ Built admin dashboard to manage animal records and requests with in-app/email notifications.
◦ Integrated Spring Boot Admin to monitor system status and track health metrics.
◦ Applied Flyway for database migrations and Docker for consistent local deployments.

L ANGUAGES
• Polish (B2), English (B1), Ukrainian (Native), Russian (Native)

A CHIEVEMENTS
• 2nd Prize – Hackathon WUD Szczecin, 12–13 October 2024

E DUCATION
• West Pomeranian University of Technology October 2022 – March 2026
Information Systems Engineering Szczecin, Poland