Oleg Karban

Nonprofit Tech Hub

Key Responsibilities:

• Designed and developed microservices using the Spring Framework, delivering scalable and secure backend systems.
• Enhanced application performance by optimizing database queries and streamlining workflows.
• Conducted unit, integration, and performance testing to ensure high-quality software delivery.

Key Achievements:

• Successfully implemented an Event-Driven Architecture, improving system flexibility and scalability.
• Reduced the time required to complete integration tests by 20%, significantly boosting CI/CD pipeline efficiency.

Healthcare Project (NDA)
Key Responsibilities:

• Developed and maintained scalable backend services using Java 8+ and Spring Framework.
• Designed and implemented secure APIs, ensuring compliance with healthcare data privacy regulations.
• Optimized application performance and enhanced system reliability through code refactoring and database query tuning.
• Conducted unit and integration testing using JUnit and Mockito to maintain high-quality code standards.

Key Achievements:

• Successfully refactored and covered new services with integration and unit tests, meeting all company quality requirements.
• Mentored trainee developers, accelerating their onboarding process and ensuring seamless integration into the project team.