Maksym Kerch

iGaming Platform

• • Refactored and optimized core services for better performance and maintainability.

• • Modernized system architecture and improved scalability.

• • Enhanced monitoring and performance analysis using Grafana and observability tooling.

• • Introduced Virtual Threads to boost concurrency and reduce latency.

• • Actively contributed to the design and development of three new microservices built with Java 25 and Spring Boot 4, leveraging Virtual Threads as a core concurrency model.

• • Proposed and drove key architectural and tooling decisions across the stack. Java 17–25, Boot 3.x–4.x, gRPC, PostgreSQL, Elasticsearch, Neo4j

Sweden's horse-betting platform (iGaming)

• • Developed and modernized backend services using Kotlin and Spring Boot

• • Resolved system bottlenecks and improved performance

• • Contributed to architectural improvements and CI/CD optimizations

• • Collaborated with product teams on API and integration design Tech: Java 17-21, Spring Boot/Cloud, AWS (SQS/S3/Lambda/EKS), Docker, Terraform, REST APIs, WebClient, Hazelcast, Dynatrace

Project: (Canada).

• • Migrated legacy services to Spring Boot

• • Built Data Copy application for environment synchronization

• • JVM tuning for optimized resource allocation in Kubernetes clusters.

• • Led CI/CD migration to Azure DevOps

• • Mentored developers and improved delivery processes Tech: Java 11–17, Spring Boot/WebFlux, Azure stack (AKS), PostgreSQL