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gwanghyeon-k

PROFILE

Gwanghyeon-k

Over three months, contributed to the Today-Story/TRIT-BE backend by delivering 67 features and resolving 20 bugs, focusing on playlist management, coupon integration, and reservation enhancements. Built robust API endpoints and data models using Java, Spring Boot, and SQL, emphasizing reliability, maintainability, and business value. Implemented distributed locking with Redis for scheduling, refactored service layers for clarity, and optimized database queries for performance. Enhanced user experience through enriched response payloads, dynamic filtering, and improved validation logic. Leveraged Liquibase for schema migrations and QueryDSL for flexible querying, ensuring scalable data flows and consistent API behavior across evolving business requirements.

Overall Statistics

Feature vs Bugs

77%Features

Repository Contributions

163Total
Bugs
20
Commits
163
Features
67
Lines of code
11,669
Activity Months3

Your Network

4 people

Work History

November 2025

15 Commits • 4 Features

Nov 1, 2025

November 2025: Delivered a set of core platform enhancements for Today-Story/TRIT-BE that unlocks richer product metadata, smarter reservation handling, and improved coupon integration, delivering tangible business value through better data fidelity, user experience, and analytics readiness. Key outcomes include a scalable schema migration, enriched reservation responses, dynamic reservation querying, and robust coupon support across reservations.

October 2025

60 Commits • 27 Features

Oct 1, 2025

October 2025 monthly summary for Today-Story/TRIT-BE focusing on business value and technical achievements. Highlights include reliability and UX improvements across content and coupon experiences, stabilization of core data flows through targeted fixes and migrations, and substantial data-model/API enhancements. Deliverables span critical validation safeguards for user and creator onboarding, enriched content and product data with like/status signals, robust coupon lifecycle features, and API consistency through standardized result codes and paging enhancements.

September 2025

88 Commits • 36 Features

Sep 1, 2025

September 2025 monthly summary for Today-Story/TRIT-BE focusing on business value, reliability, and feature completeness. This month delivered a robust expansion of the playlist ecosystem, stability improvements, and data-quality enhancements that directly impact user engagement, retention, and API reliability.

Activity

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Quality Metrics

Correctness88.8%
Maintainability89.2%
Architecture86.8%
Performance83.4%
AI Usage20.4%

Skills & Technologies

Programming Languages

JavaSQLYAML

Technical Skills

API DesignAPI DevelopmentAuthenticationBackend DevelopmentCode CleanupCoupon ManagementCustom AnnotationsDTODTO DesignDTO ImplementationDTO MappingDTO RefactoringData ParsingDatabaseDatabase Design

Repositories Contributed To

1 repo

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

Today-Story/TRIT-BE

Sep 2025 Nov 2025
3 Months active

Languages Used

JavaSQLYAML

Technical Skills

API DesignAPI DevelopmentAuthenticationBackend DevelopmentCode CleanupCustom Annotations