Open to opportunities

Николай Юрченко

@0005905

Message

I build scalable Java backend systems for high-load, business-critical distributed platforms.

Ukraine

Message

I've built and modernized business-critical Java platforms across iGaming, healthcare, telecom, and transportation. Most recently, I designed bonus, wallet, wagering, casino-provider integration, and transactional flows for a production iGaming platform.

At EPAM Systems, I helped migrate a healthcare insurance backend to Java 21 and Spring Boot microservices on Kubernetes, supporting 10,000–20,000 requests per second. I use Java, Spring Boot, Kafka, PostgreSQL, Redis, Kubernetes, and AWS to take systems from technical design through production operation.

Experience

Work history, roles, and key accomplishments

Senior Java Backend Engineer

iGaming Platform

Oct 2025 - Aug 2026 (10 months)

Designed and implemented a configurable bonus-management subsystem, defined wallet and wagering rules, and built casino provider integrations with transactional integrity and idempotency.

Java Spring Boot Hibernate PostgreSQL Redis Liquibase REST APIs Docker

Senior Java Software Engineer

EPAM Systems

Jun 2022 - Jun 2025 (3 years)

Led legacy-to-microservices modernization of a healthcare insurance platform, designed high-load services, and introduced event-driven architecture with Kafka and Protocol Buffers.

Kafka Protocol Buffers PostgreSQL MongoDB Redis Kubernetes AWS Liquibase Checkmarx

Java Software Engineer

GlobalLogic

Jun 2021 - Jun 2022 (1 year)

Developed core modules for real-time device monitoring and configuration workflows in a telecom network-management platform, and built low-latency Kafka telemetry pipelines.

Java EE Kafka JBoss WildFly

Backend Developer

Taxi Service Platform

May 2020 - Jun 2021 (1 year 1 month)

Migrated a legacy PHP monolith to a Java 11 / Spring Boot microservices ecosystem, achieving a 3x improvement in stability, speed, and maintainability, and designed asynchronous dispatch workflows.

Spring Boot ActiveMQ RabbitMQ Asterisk Docker ELK Sentry

Backend Developer

Riversoft

Feb 2018 - May 2020 (2 years 3 months)

Built RESTful Java/Groovy/Spring Boot services, WebSocket communication, and RabbitMQ-based background processing, and containerized applications with Docker and Nginx.

Java Groovy Spring Boot WebSockets RabbitMQ Docker Nginx