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Roman

PROFILE

Roman

Roman Fedko developed a suite of mathematical utilities and robust API features across the UA-1378-TAQC/codeWars1378 and UA-1378-TAQC/GreenCity repositories. He engineered algorithms for geometry, numeric conversions, and statistical analysis in Java, emphasizing data accuracy and maintainability through code refactoring and comprehensive unit testing. In GreenCity, he delivered an Event Management API with endpoints for event and comment operations, ensuring reliability via JSON schema validation and end-to-end API testing using Python and Pytest. His work demonstrated depth in backend development, focusing on practical business needs, strong test coverage, and seamless integration for both internal and external consumers.

Overall Statistics

Feature vs Bugs

96%Features

Repository Contributions

41Total
Bugs
1
Commits
41
Features
25
Lines of code
1,615
Activity Months2

Work History

May 2025

5 Commits • 1 Features

May 1, 2025

May 2025 monthly summary for UA-1378-TAQC/GreenCity: Delivered the Event Management API and Comments feature with endpoints to create, retrieve, and delete events, plus support for posting comments. Implemented robust API testing including negative tests, a fixture for creating events, and schema validation for error responses. Verified that newly created events appear in the all-events list, ensuring end-to-end integrity. The work reflects a strong emphasis on reliability, test coverage, and practical business value, enabling front-end and external integrations with minimal risk.

April 2025

36 Commits • 24 Features

Apr 1, 2025

April 2025 monthly summary for UA-1378-TAQC/codeWars1378: Delivered a focused set of utilities and math helpers that enhance user value, reliability, and maintainability. Emphasis on robust numeric handling, geometry and unit conversion capabilities, and expanded test coverage to reduce defect leakage. Major bug fix improved correctness of square root behavior across calculations. Overall, increased feature reach, improved data accuracy, and stronger code quality drive business value and long-term stability.

Activity

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Quality Metrics

Correctness91.6%
Maintainability92.8%
Architecture89.2%
Performance86.2%
AI Usage20.6%

Skills & Technologies

Programming Languages

JSONJavaPythonShell

Technical Skills

API DevelopmentAPI TestingAlgorithmAlgorithm ImplementationBackend DevelopmentBackend TestingBigIntegerBinary SearchCode CleanupCode OrganizationCode RefactoringCore JavaData ParsingData ProcessingData Structures

Repositories Contributed To

2 repos

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

UA-1378-TAQC/codeWars1378

Apr 2025 Apr 2025
1 Month active

Languages Used

Java

Technical Skills

AlgorithmAlgorithm ImplementationBigIntegerBinary SearchCode CleanupCode Organization

UA-1378-TAQC/GreenCity

May 2025 May 2025
1 Month active

Languages Used

JSONPythonShell

Technical Skills

API DevelopmentAPI TestingBackend DevelopmentBackend TestingJSON Schema ValidationPytest

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