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Kizerov Dmytro

PROFILE

Kizerov Dmytro

Over a three-month period, contributed to the ita-social-projects/GreenCityUser repository by delivering features and fixes across backend, frontend, and deployment workflows. Developed a secure internal testers sign-in API, enhancing authentication flows while maintaining security using Java, Spring Boot, and Mockito. Integrated OpenAI API capabilities into the GreenCity deployment, managing configuration with YAML and Kubernetes, and ensuring safe rollout and rollback of sensitive keys. Improved email template header image rendering for scheduled notifications through targeted CSS styling, then reverted regressions to maintain layout stability. Demonstrated a methodical approach to configuration management, security, and cross-functional development using Java, CSS, and Kubernetes.

Overall Statistics

Feature vs Bugs

60%Features

Repository Contributions

10Total
Bugs
2
Commits
10
Features
3
Lines of code
840
Activity Months3

Work History

February 2025

3 Commits • 1 Features

Feb 1, 2025

February 2025 monthly summary for GreenCityUser (ita-social-projects/GreenCityUser). Focused on stabilizing email template header image rendering for scheduled notifications. Implemented a targeted styling improvement to header image presentation and performed a controlled regression revert to restore prior stable state, ensuring consistent rendering across devices.

December 2024

5 Commits • 1 Features

Dec 1, 2024

December 2024 focused on enabling AI capabilities within GreenCity by implementing OpenAI API integration in the Kubernetes deployment, establishing API key configuration in greencity.yaml and Kubernetes secrets/deployments, and laying the groundwork for secure, scalable AI features. Deployment tuning and iterative fixes were executed to stabilize the integration, followed by a rollback of the OpenAI API key configuration to ensure system safety and prevent partial feature exposure. Overall, the work delivers a solid foundation for AI-enabled capabilities while maintaining release governance and security.

November 2024

2 Commits • 1 Features

Nov 1, 2024

November 2024 monthly summary focusing on the GreenCityUser internal testing enhancement. Delivered a secure, dedicated testers sign-in flow that bypasses captcha for internal testing while preserving overall authentication security posture. Implemented with a new endpoint, controller, DTO, and service method; accompanied by security configuration updates and tests to ensure reliability and guardrails.

Activity

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Quality Metrics

Correctness83.0%
Maintainability84.0%
Architecture74.0%
Performance70.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

CSSHTMLJavaPropertiesYAML

Technical Skills

API DevelopmentBackend DevelopmentCSSCSS StylingConfiguration ManagementDevOpsFront End DevelopmentFront-end DevelopmentHelmKubernetesMockitoSecurity ConfigurationSpring BootUnit Testing

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

ita-social-projects/GreenCityUser

Nov 2024 Feb 2025
2 Months active

Languages Used

JavaPropertiesCSSHTML

Technical Skills

API DevelopmentBackend DevelopmentMockitoSecurity ConfigurationSpring BootUnit Testing

ita-social-projects/GreenCity

Dec 2024 Dec 2024
1 Month active

Languages Used

YAML

Technical Skills

Configuration ManagementDevOpsHelmKubernetes