Vadym Tretiak

Senior Java engineer with 14 years of experience building high-throughput backend systems, most recently across the iGaming and payments domains. Deep expertise in the Spring ecosystem, microservices, and performance engineering. Recent work supported a 3x increase in platform traffic and reduced the running cost of team-owned services by roughly 3x. Comfortable owning a service end to end — architecture, integrations, CI/CD, and production reliability — and raising code quality across a team.