Summary
Highly skilled and motivated back-end Java developer with strong leadership skills and mentoring experience. 10+ years of experience developing in Java for high-load systems. Strong experience using Java, Spring, Kafka, PostgreSQL and microservice architecture technologies. Experience in improving application performance, building systems from scratch, and leading development teams through the full product lifecycle.
Languages
- English: Upper-Intermediate
- Ukrainian: Native
Future Plans
I am opening for Java Team Lead or Senior Java Engineer role where I can leverage my experience in high-load, microservice systems.
Particularly interested in:
- Leading engineering teams of up to 10 people in fast-growing companies
- Designing event-driven architectures for real-time systems (gambling/fintech/trading)
- Establishing engineering excellence through DevOps practices and platform engineering
- Mentoring developers while remaining hands-on with critical technical decisions
Hard Skills
Program languages
- Java (primary)
- Kotlin
- Groovy
- Go
Frameworks & Technologies
- Spring (Boot, Data, Cloud, Security)
- Hibernate/JPA/JDBC/JOOQ
- WebFlux, WebSockets, TCP Socket
- Kafka, RabbitMQ
- Aeron, Disruptor LMAX
Databases
- PostgreSQL
- MongoDB
- Redis
- Elastic
Testing
- JUnit
- Mockito
- WireMock
DevOps & Monitoring
- Kubernetes, Docker Swarm
- Grafana, Prometheus, DataDog
- GCP, AWS
- Gradle, Maven
Design & Documentation
- Diagrams.net
- PlantUML
- Mermaid
Tools
- JProfiler
- VisualVM
- JHipster
- Claude Code
- Copilot
- Codex
Professional Experience
Java Team Lead
Favbet Tech June 2025 - PresentLeading Java development from scratch for core casino ecosystem services (Audit System, Staff SSO, Presigned URL Service).
- Established technology stack, coding standards, and architectural foundations for backend services
- Built and organized development team, implemented Scrum and Agile workflows
- Designed and implemented CI/CD pipelines from test to production, included releases, canary deployment, autotests
- Led full product lifecycle from design to production deployment with on-call support
Tech stack: Java 25, Spring, Kafka, Kafka Connect, PostgreSQL, Redis, Gradle, K8S, Argo, Grafana, Prometheus
Senior Java Developer
PragmaticPlay July 2022 - June 2025Developed promotion system for slot games including campaigns, tournaments, prize drops, notifications, and reports.
- Implemented new business features for tournament and prize drop systems
- Designed architecture solutions from research and POC to implementation
- Optimized performance: improved application performance, tuned slow queries, implemented caching, improved serialization process, memory management
- Built monitoring dashboards and alerts for production support with on-call duties
Tech stack: Java 21, Spring, Spring Data, Kafka, RabbitMQ, PostgreSQL, Maven, Docker, K8S
Senior Java Developer
1TouchIO January 2020 - July 2022Personal data and network analytics tools, CRM system for management of personal data.
- Architecture development and performance tuning of services
- Feature implementation for analytics and CRM systems
Tech stack: Java 8, Spring, Spring Data, Kafka, PostgreSQL, MongoDB, Gradle, Docker, Docker Swarm
Senior Java Developer
Newage Solutions January 2018 - January 2020Trading platform ecosystem including modern shell, CRM, BI (Reporting), Roles/Permissions, and Chat System.
- Architecture development and communication with product owners and customers
- Release planning, delivery, and E2E test development
- Participated in CI/CD process development
Tech stack: Kotlin, Java 8, Spring Boot 2, Spring Data, Kafka, TCP Socket, WebSocket, Aeron, ELK stack, Gradle, Docker
Senior Java Developer
GlobalLogic January 2017 - 2018Developed microservices for social network API with complex base structure.
- Participated in architectural design of enterprise services
- Implemented microservices architecture using Spring Cloud
Tech stack: Microservices, Spring Cloud (Streams, Zuul, Registry, Eureka), Java 8, Spring Boot 2, Gradle, Docker, MongoDB, Hazelcast
Middle Java Developer
AlfaBank April 2017 - December 2017Internal processing center for bank, API for P2P and A2P transactions.
- Developed bank card services and migration adapters in multithreading mode
- System support and bug fixes
Tech stack: REST, SOAP, Spring Boot, Groovy, Oracle DB, Oracle Advanced Queuing, JUnit, Gradle
Portfolio: examples of my public work
Commons redis keys
A library that provides shared, type-safe abstractions for Redis key management.
Motivation and Benefits of the creation commons redis keys lib (Docs) 🔗