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jihye9871

PROFILE

Jihye9871

Over five months, this developer delivered robust backend features and algorithmic solutions across the Techeer-Hogwarts/nest and Live-Coding-Test/Algorithm-study repositories. They built scalable APIs for team management, authentication, and project workflows using TypeScript, NestJS, and PostgreSQL, emphasizing data integrity, exception handling, and deployment reliability. Their work included designing and refactoring database schemas, implementing JWT authentication, and integrating AWS S3 for file uploads. Alongside infrastructure improvements with Docker and Prisma, they maintained a steady cadence of algorithmic problem solving in Java and Python, contributing reusable modules and test coverage. Their approach balanced business value, maintainability, and technical depth throughout each release.

Overall Statistics

Feature vs Bugs

67%Features

Repository Contributions

116Total
Bugs
17
Commits
116
Features
35
Lines of code
18,122
Activity Months5

Work History

March 2025

6 Commits • 3 Features

Mar 1, 2025

March 2025 monthly summary for Techeer-Hogwarts/nest focusing on strengthening recruitment workflows through API resilience, data integrity, and release readiness. Delivered key features and fixed critical edge cases across recruitment, project APIs, and study workflows with targeted commits. Increased reliability, accuracy of recruitment counts, and status transitions. Skills demonstrated include API design, exception handling, data validation, Redis seed data management, versioning, and dependency management. Business value delivered includes reduced error-prone recruitment flows, consistent data, faster handling of recruitment scenarios, and safer deployments.

February 2025

35 Commits • 11 Features

Feb 1, 2025

February 2025 performance snapshot for Techeer-Hogwarts/nest and Live-Coding-Test/Algorithm-study. Delivered substantial back-end improvements, data seeding, robust API surfaces, and enhanced data integrity, with a focus on business value and maintainability. Implemented features that improve user workflows (blog deletion, project/study API enhancements, and detailed views with userId/year), completed migration and Prisma fixes, and strengthened logging and test coverage. On the algorithm side, completed multiple Java problems to sharpen problem-solving capabilities and performance mindset.

January 2025

30 Commits • 9 Features

Jan 1, 2025

January 2025 performance summary (2025-01). Focused on delivering scalable backend features, cleaning up legacy code, and maintaining a strong personal learning cadence through algorithm problem solving. The work targeted business value for team management, data integrity, and code health, while continuing to sharpen problem-solving and coding skills.

December 2024

22 Commits • 6 Features

Dec 1, 2024

December 2024 monthly performance highlights across two repositories. Intensive feature work in algorithm study and nest, with a focus on scalable architecture, robust APIs, and deployment reliability. Delivered a suite of algorithmic challenge solutions, core data structures, and scaffolding for future problem sets; refactored and expanded team/project granularity; added project-centric APIs and announcements, along with auth enhancements and deployment improvements that stabilize builds and networking. This work strengthens product capabilities, developer productivity, and operational stability, delivering measurable business value through clearer ownership, faster iteration, and secure, scalable infrastructure.

November 2024

23 Commits • 6 Features

Nov 1, 2024

November 2024 performance summary for two repositories: Live-Coding-Test/Algorithm-study and Techeer-Hogwarts/nest. The month delivered core algorithmic features, foundational scaffolding, and stability improvements that directly support business value (reliable problem-solving modules, reusable components, scalable authentication groundwork, and more robust CI).

Activity

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Quality Metrics

Correctness83.8%
Maintainability81.6%
Architecture74.0%
Performance75.2%
AI Usage21.4%

Skills & Technologies

Programming Languages

DockerfileJSONJavaJavaScriptNonePrismaPrisma SchemaPythonSQLTypeScript

Technical Skills

API DesignAPI DevelopmentAPI TestingAWS S3Access ControlAlgorithmAlgorithm ImplementationAlgorithm StudyAlgorithmic Problem SolvingAuthenticationBackend DevelopmentBacktrackingBit ManipulationBreadth-First Search (BFS)Combinatorics

Repositories Contributed To

2 repos

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

Live-Coding-Test/Algorithm-study

Nov 2024 Feb 2025
4 Months active

Languages Used

PythonNoneJava

Technical Skills

AlgorithmAlgorithm ImplementationBreadth-First Search (BFS)Data StructuresDijkstra's AlgorithmDynamic Programming

Techeer-Hogwarts/nest

Nov 2024 Mar 2025
5 Months active

Languages Used

JavaScriptPrismaSQLTypeScriptDockerfilePrisma SchemaYAMLJSON

Technical Skills

API DevelopmentBackend DevelopmentDatabase DesignDatabase Schema DesignJWT AuthenticationNestJS