Oleksii Kholodkov

Team Lead and Solution Architect @Mastercard

Project: Design and implement network components to achieve resiliency for TCP and gRPC\\\\ncommunication channels. Contract through EPAM Systems.\\\\n\\\\nTeam Size: 100+ people in parallel streams. Scrum team 7 people.\\\\n\\\\nTasks performed and deliverables:\\\\n• Improved performance and resource utilization. Data transfer performance increased by 70%, and memory usage decreased by 45%.\\\\n• Implemented the security part of an application, including TCP and gRPC mTLS, JWT authorization, CMS signing, and signature verification.\\\\n• Designed and implemented application resiliency, that allows providing service to a customer without any downtime, with an SLA of more than 99,99%\\\\n• Designed and implemented a CLI interface for the application, that allows configuring and monitoring the application without application downtime.\\\\n\\\\nEnvironment: Java, Linux, TCP, gRPC, Git.\\\\nTools: IntelliJ IDEA, Postman, VS Code, Jenkins, Sonar.\\\\n \\\\n\\\\n \\\\n \\\\n\\\\n \\\\n