Yaroslav Kladko
@yaroslavkladko
Senior Java developer focused on scalable microservices for iGaming.
PolandWhat I'm looking for
I am a senior Java developer with strong experience designing and delivering distributed microservice systems for betting and iGaming domains.
I have driven decoupling monoliths into microservices, built REST and event-driven interfaces, and integrated systems with AWS services such as S3, EKS, RDS, Lambda and CloudWatch.
My background includes performance-focused engineering — optimizing throughput and latency, creating CI/CD pipelines with GitLab and Jenkins, and working with containerization and infrastructure as code tools like Docker, Terraform and Helm.
I am a collaborative team member who participates in architecture discussions, mentors peers, and seeks projects with a friendly team in the iGaming space.
Experience
Work history, roles, and key accomplishments
Senior Java Developer
Unknown
Feb 2021 - Present (4 years 10 months)
Decoupled a monolith into microservices and implemented REST and event-driven interfaces, improving integration with AWS services and third-party data providers. Optimized identification and unification processes and contributed to architectural decisions to improve system scalability and observability.
Developed a high-throughput delivery options calculation system focusing on latency and integration with third-party APIs and databases; owned service development and performance analysis. Engaged in architecture discussions and led parts of the KMA Dormitory System project.
Middle Java Developer
Netcracker
Oct 2018 - Mar 2019 (5 months)
Developed backend services for product storage and order delivery flow, increasing order processing performance and improving registration process efficiency through asynchronous integration and code optimizations.
Java Developer
Netcracker
Nov 2017 - Oct 2018 (11 months)
Implemented business logic, unit and integration tests, and backend migrations; contributed to image capture development and bug fixing for applied backend architecture.
Education
Degrees, certifications, and relevant coursework
NANational University of Kyiv-Mohyla Academy
Master of Science, Computer Science
2019 - 2021
Activities and societies: Service development and integration; performance optimization; architecture discussions
Completed a Master's degree in Computer Science, responsible for service development and integration and optimization of asynchronous interactions.
NANational University of Kyiv-Mohyla Academy
Bachelor of Science, Computer Science
2015 - 2019
Activities and societies: Code review participation; backend integration; development and unit/integration testing
Completed a Bachelor's degree in Computer Science with participation in code review and backend integration tasks.
Tech stack
Software and tools used professionally
Availability
Location
PolandAuthorized to work in
Job categories
Skills
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