ls1intum/Artemis
May 2025 – Apr 2026
9 Months active
Languages Used
HTMLJavaTypeScriptPythonJSONXML
Technical Skills
AngularBackend DevelopmentFrontend DevelopmentJavaAPI DesignDTO Pattern
Le Zhen
PROFILE
Le Zhen
Georgios Evangelidis contributed to the ls1intum/Artemis repository by designing and refactoring core API endpoints and data flows, focusing on maintainability and data integrity. He introduced Data Transfer Objects (DTOs) for features such as grading scales, complaint responses, and FAQ management, standardizing payloads and improving validation across backend and frontend components. Using Java, TypeScript, and the Spring Framework, Georgios enhanced test reliability, reduced data inconsistencies, and streamlined client integration. His work addressed both feature development and critical bug fixes, demonstrating depth in backend development, API design, and code analysis, while ensuring the Artemis platform’s long-term scalability and robustness.
Overall Statistics
Feature vs Bugs
64%Features
Repository Contributions
18Total
Bugs
5
Commits
18
Features
9
Lines of code
6,049
Activity Months9
Your Network
55 peopleSame Organization
@mytum.de17
Lucas WelscherMember
mleschMember
Lisa EngstlerMember
ArdaMember
clabeneMember
Evgenii RadchenkoMember
Florea Ioan-AlbertMember
VishavMember
Kiara CoponyMember
Work History
April 2026
2 Commits • 1 Features
Apr 1, 2026Concise monthly summary for 2026-04 focused on back-end API project work in ls1intum/Artemis: Key features delivered: - API DTO Refactor for Grading Scales and Complaint Responses: Replaced ad-hoc payloads with Data Transfer Objects (DTOs) to improve data encapsulation, API consistency, and client-side handling. This standardizes data structures across endpoints and reduces client-side parsing complexity. - Commits delivering the feature: - 02a39ebc8fa24548111052776b71946c9bddedd9: Development: Change Grading Scale endpoints to use DTOs (#12145) - 649346ad6303ea69003b1696ca68fd9f5274ff89: Development: Change Complaint response endpoints to use DTOs (#12360) (Co-authored-by: Maximilian Anzinger) Major bugs fixed: - No major bugs reported/recorded in this period for this repository segment. Overall impact and accomplishments: - Improved API robustness and client integration by introducing DTOs for two critical endpoints (grading scales and complaint responses). - Reduced risk of breaking changes and improved future extensibility for the Artemis REST API, aligning with long-term maintainability goals. - Strengthened collaboration and code quality through co-authored work credits and clear commit messages. Technologies/skills demonstrated: - Data Transfer Object (DTO) pattern, API design and consistency, and refactoring for better encapsulation. - Back-end refactoring with attention to client compatibility and future scalability. - Collaboration and documentation through clear commit messages and co-authorship.
2 Commits • 1 Features
Apr 1, 2026Concise monthly summary for 2026-04 focused on back-end API project work in ls1intum/Artemis: Key features delivered: - API DTO Refactor for Grading Scales and Complaint Responses: Replaced ad-hoc payloads with Data Transfer Objects (DTOs) to improve data encapsulation, API consistency, and client-side handling. This standardizes data structures across endpoints and reduces client-side parsing complexity. - Commits delivering the feature: - 02a39ebc8fa24548111052776b71946c9bddedd9: Development: Change Grading Scale endpoints to use DTOs (#12145) - 649346ad6303ea69003b1696ca68fd9f5274ff89: Development: Change Complaint response endpoints to use DTOs (#12360) (Co-authored-by: Maximilian Anzinger) Major bugs fixed: - No major bugs reported/recorded in this period for this repository segment. Overall impact and accomplishments: - Improved API robustness and client integration by introducing DTOs for two critical endpoints (grading scales and complaint responses). - Reduced risk of breaking changes and improved future extensibility for the Artemis REST API, aligning with long-term maintainability goals. - Strengthened collaboration and code quality through co-authored work credits and clear commit messages. Technologies/skills demonstrated: - Data Transfer Object (DTO) pattern, API design and consistency, and refactoring for better encapsulation. - Back-end refactoring with attention to client compatibility and future scalability. - Collaboration and documentation through clear commit messages and co-authorship.
April 2026
March 2026
2 Commits • 1 Features
Mar 1, 2026March 2026 monthly summary for ls1intum/Artemis (Artemis). Implemented DTO-based API data handling enhancements focused on plagiarism posts and tutorial group configurations. Refactored endpoints to use DTOs to improve data validation, input normalization, and API contracts. This work is captured in two commits that update the create plagiarism post endpoint and tutorial configuration endpoints, strengthening data integrity and API stability.
March 2026
2 Commits • 1 Features
Mar 1, 2026March 2026 monthly summary for ls1intum/Artemis (Artemis). Implemented DTO-based API data handling enhancements focused on plagiarism posts and tutorial group configurations. Refactored endpoints to use DTOs to improve data validation, input normalization, and API contracts. This work is captured in two commits that update the create plagiarism post endpoint and tutorial configuration endpoints, strengthening data integrity and API stability.
January 2026
2 Commits
Jan 1, 2026January 2026 (2026-01) Artemis — focused on reliability, localization correctness, and configuration safety. Delivered two targeted fixes addressing translation gaps and scoring configuration defaults, enhancing user experience and preventing misconfigurations across the course management UI.
2 Commits
Jan 1, 2026January 2026 (2026-01) Artemis — focused on reliability, localization correctness, and configuration safety. Delivered two targeted fixes addressing translation gaps and scoring configuration defaults, enhancing user experience and preventing misconfigurations across the course management UI.
January 2026
December 2025
5 Commits • 4 Features
Dec 1, 2025December 2025 (ls1intum/Artemis) monthly summary: Implemented targeted test stability and data-handling enhancements across four areas—SlideSplitterService tests, quiz data export and MC options testing, modeling exercises DTO-based updates and test alignment, and FileUpload exercises DTOs. These changes reduce flaky tests, tighten data validation, and align tests with the current data model, enabling faster release cycles and safer refactors.
December 2025
5 Commits • 4 Features
Dec 1, 2025December 2025 (ls1intum/Artemis) monthly summary: Implemented targeted test stability and data-handling enhancements across four areas—SlideSplitterService tests, quiz data export and MC options testing, modeling exercises DTO-based updates and test alignment, and FileUpload exercises DTOs. These changes reduce flaky tests, tighten data validation, and align tests with the current data model, enabling faster release cycles and safer refactors.
November 2025
1 Commits • 1 Features
Nov 1, 2025Month: 2025-11 | Focus: Artemis repository improvements around FAQ data handling. Key work centered on introducing CreateFaqDTO and UpdateFaqDTO, updating API layer and frontend alignment to the new DTO structure, improving validation, clarity, and maintainability. This month also sets groundwork for consistent FAQ data transport and faster future enhancements.
1 Commits • 1 Features
Nov 1, 2025Month: 2025-11 | Focus: Artemis repository improvements around FAQ data handling. Key work centered on introducing CreateFaqDTO and UpdateFaqDTO, updating API layer and frontend alignment to the new DTO structure, improving validation, clarity, and maintainability. This month also sets groundwork for consistent FAQ data transport and faster future enhancements.
November 2025
October 2025
2 Commits • 1 Features
Oct 1, 2025Month: 2025-10 | Repository: ls1intum/Artemis | Focus: API boundary standardization for TutorParticipation endpoints and DTO-driven architecture.
October 2025
2 Commits • 1 Features
Oct 1, 2025Month: 2025-10 | Repository: ls1intum/Artemis | Focus: API boundary standardization for TutorParticipation endpoints and DTO-driven architecture.
September 2025
1 Commits • 1 Features
Sep 1, 2025September 2025: Delivered API refactor focused on reaction-related data handling in the Artemis repository, introducing a DTO-based data flow to improve maintainability and data integrity. The work lays groundwork for robust API contracts and easier future enhancements.
1 Commits • 1 Features
Sep 1, 2025September 2025: Delivered API refactor focused on reaction-related data handling in the Artemis repository, introducing a DTO-based data flow to improve maintainability and data integrity. The work lays groundwork for robust API contracts and easier future enhancements.
September 2025
July 2025
1 Commits
Jul 1, 2025Month: 2025-07 | Focus: stability and data integrity in user profiles for Artemis. Delivered a critical bug fix that prevents accidental deletion of user images when updating profile information. No new features deployed this month; primary deliverable was a robust guard around the image URL update with null-checks, improving reliability and data safety for end users.
July 2025
1 Commits
Jul 1, 2025Month: 2025-07 | Focus: stability and data integrity in user profiles for Artemis. Delivered a critical bug fix that prevents accidental deletion of user images when updating profile information. No new features deployed this month; primary deliverable was a robust guard around the image URL update with null-checks, improving reliability and data safety for end users.
May 2025
2 Commits
May 1, 2025May 2025 summary — Artemis (ls1intum): Delivered two critical bug fixes that significantly improved data accuracy and reporting reliability. Grading System: corrected rounding and interval display by using raw numeric inputs and precise interval calculations, ensuring accurate upper/lower bound updates. Attendance reporting: refactored average attendance to exclude canceled sessions and entries without counts, boosting reporting reliability. Impact: more trustworthy grading and attendance analytics, reduced need for manual corrections, and improved data integrity for instructors and administrators. Technologies/skills demonstrated: robust numeric input handling, interval-based calculation logic, and data filtering applied to core reporting paths in Artemis. Commits touched: 61c1cd8ab44e964e06f743ce64267b49db71d955; b1739170bdd6f455cc71a68205c630c0e7af9dbd.
2 Commits
May 1, 2025May 2025 summary — Artemis (ls1intum): Delivered two critical bug fixes that significantly improved data accuracy and reporting reliability. Grading System: corrected rounding and interval display by using raw numeric inputs and precise interval calculations, ensuring accurate upper/lower bound updates. Attendance reporting: refactored average attendance to exclude canceled sessions and entries without counts, boosting reporting reliability. Impact: more trustworthy grading and attendance analytics, reduced need for manual corrections, and improved data integrity for instructors and administrators. Technologies/skills demonstrated: robust numeric input handling, interval-based calculation logic, and data filtering applied to core reporting paths in Artemis. Commits touched: 61c1cd8ab44e964e06f743ce64267b49db71d955; b1739170bdd6f455cc71a68205c630c0e7af9dbd.
May 2025
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Quality Metrics
Correctness92.2%
Maintainability85.0%
Architecture86.2%
Performance82.2%
AI Usage26.6%
Skills & Technologies
Programming Languages
HTMLJSONJavaPythonTypeScriptXML
Technical Skills
API DesignAPI DevelopmentAPI developmentAngularBackend DevelopmentCode AnalysisDTO PatternDTO designDTO usageData ReportingData Transfer ObjectsFrontend DevelopmentHibernateJUnitJava
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