ZeitOnline/vivi
Nov 2024 – Aug 2025
8 Months active
Languages Used
CSSGettextPOPythonXMLplaintextJavaScriptGit
Technical Skills
API DesignBackend DevelopmentBrowser AutomationCMS DevelopmentCSS StylingCode Organization
Jannis Jahr
PROFILE
Jannis Jahr
Jannis Jahr developed and enhanced publishing workflows for the ZeitOnline/vivi repository, focusing on backend features that improved data integrity, automation, and content management. He implemented API extensions to enrich publishing payloads with series and author metadata, introduced robust handling for missing data, and delivered features like podcast series publishing and webhook content-type filtering. Using Python, Playwright, and CSS, Jannis modernized test automation, refactored legacy code, and expanded localization coverage. His work emphasized maintainability through code cleanup, comprehensive test coverage, and clear documentation, resulting in more reliable deployments and scalable pipelines that support evolving editorial and analytics requirements.
Overall Statistics
Feature vs Bugs
82%Features
Repository Contributions
55Total
Bugs
3
Commits
55
Features
14
Lines of code
2,449
Activity Months8
Your Network
15 people
Work History
August 2025
3 Commits • 1 Features
Aug 1, 2025August 2025 monthly summary for ZeitOnline/vivi: Delivered a feature extension to followings by enriching publish_json with series and author UUIDs as well as creation date, supported by updated tests and release documentation. The changes were implemented in the ZeitOnline/vivi repository with a clear commit sequence and changelog entry, aligning with ENG-232/ENG-344 work items.
3 Commits • 1 Features
Aug 1, 2025August 2025 monthly summary for ZeitOnline/vivi: Delivered a feature extension to followings by enriching publish_json with series and author UUIDs as well as creation date, supported by updated tests and release documentation. The changes were implemented in the ZeitOnline/vivi repository with a clear commit sequence and changelog entry, aligning with ENG-232/ENG-344 work items.
August 2025
July 2025
3 Commits • 1 Features
Jul 1, 2025July 2025: Delivered the Publisher followings feature for ZeitOnline/vivi (ENG-232) with accompanying documentation and changelog updates. Fixed a parameter naming bug by using parent_uuid (instead of parent_id) and updated tests accordingly. Updated test coverage to validate the new parameter semantics and prevent regressions. Generated documentation and changelog entries to ensure publish-ready changes and clear API guidance. Business impact includes enabling publishers to reliably receive followings, improving data integrity, and reducing integration friction. Technologies demonstrated include API design/maintenance, changelog/documentation generation, test maintenance, and cross-team collaboration with QA/Docs.
July 2025
3 Commits • 1 Features
Jul 1, 2025July 2025: Delivered the Publisher followings feature for ZeitOnline/vivi (ENG-232) with accompanying documentation and changelog updates. Fixed a parameter naming bug by using parent_uuid (instead of parent_id) and updated tests accordingly. Updated test coverage to validate the new parameter semantics and prevent regressions. Generated documentation and changelog entries to ensure publish-ready changes and clear API guidance. Business impact includes enabling publishers to reliably receive followings, improving data integrity, and reducing integration friction. Technologies demonstrated include API design/maintenance, changelog/documentation generation, test maintenance, and cross-team collaboration with QA/Docs.
June 2025
1 Commits • 1 Features
Jun 1, 2025June 2025 (ZeitOnline/vivi): Delivered Podcast Series Publishing by adding a new Followings adapter to extract parent series information for podcast-related articles and implementing tests to verify the publishing data workflow. No major bugs fixed this month; focus remained on delivering the feature and strengthening test coverage. Business impact: enables accurate linking of podcast content to series, enabling scalable publishing pipelines and improved analytics. Technical achievements: adapter development, end-to-end publishing flow, and test suite coverage.
1 Commits • 1 Features
Jun 1, 2025June 2025 (ZeitOnline/vivi): Delivered Podcast Series Publishing by adding a new Followings adapter to extract parent series information for podcast-related articles and implementing tests to verify the publishing data workflow. No major bugs fixed this month; focus remained on delivering the feature and strengthening test coverage. Business impact: enables accurate linking of podcast content to series, enabling scalable publishing pipelines and improved analytics. Technical achievements: adapter development, end-to-end publishing flow, and test suite coverage.
June 2025
April 2025
1 Commits • 1 Features
Apr 1, 2025April 2025 — ZeitOnline/vivi: Feature delivery and test coverage for webhook content-type filtering. Implemented exclusion of content types for print ressort in webhook triggers, with wildcard matching, supported by a new Hook.match_content_type(...) method. Added comprehensive tests verifying correct exclusion and edge cases. Commit e3785f98fd56fc66db065c246f740a1243c28aaa (WCM-831). Impact: reduces webhook noise, improves automation reliability for print ressort content, enabling safer content-driven workflows and lower processing cost. Skills demonstrated: design and implementation of filtering logic, test-driven development, code instrumentation for maintainability, and clear traceability via commit messages.
April 2025
1 Commits • 1 Features
Apr 1, 2025April 2025 — ZeitOnline/vivi: Feature delivery and test coverage for webhook content-type filtering. Implemented exclusion of content types for print ressort in webhook triggers, with wildcard matching, supported by a new Hook.match_content_type(...) method. Added comprehensive tests verifying correct exclusion and edge cases. Commit e3785f98fd56fc66db065c246f740a1243c28aaa (WCM-831). Impact: reduces webhook noise, improves automation reliability for print ressort content, enabling safer content-driven workflows and lower processing cost. Skills demonstrated: design and implementation of filtering logic, test-driven development, code instrumentation for maintainability, and clear traceability via commit messages.
February 2025
8 Commits • 3 Features
Feb 1, 2025February 2025 (2025-02) – ZeitOnline/vivi: Reduced technical debt, improved test reliability, and aligned localization. Key outcomes include cleanup of unused code paths, modernization of test automation for Vivi smoketests, and German localization updates for ZMS. This work supports faster, safer deployments and clearer ownership of components.
8 Commits • 3 Features
Feb 1, 2025February 2025 (2025-02) – ZeitOnline/vivi: Reduced technical debt, improved test reliability, and aligned localization. Key outcomes include cleanup of unused code paths, modernization of test automation for Vivi smoketests, and German localization updates for ZMS. This work supports faster, safer deployments and clearer ownership of components.
February 2025
January 2025
11 Commits • 2 Features
Jan 1, 2025January 2025 highlights two major feature deliveries for ZeitOnline/vivi focused on data integrity in publishing pipelines and improved tagging/keyword UX. The Data Science publish flow was enhanced to ignore unique IDs, reducing publish-time risks and data leakage by refactoring publish_json to use a private _json path with an exclusion mapping. ArticleDataScience now inherits IgnoreMixin to apply the exclusion, and the configuration supports ignoring multiple IDs, including a rename to uniqueids. This work included a dedicated changelog, an array-based ignore configuration, and tests to validate the behavior. Separately, Tagging and Keyword Widget UI was improved to show topic links next to tags, include the URL pathname in link text for clarity, truncate long keywords with ellipsis and reveal full content on hover, and stabilize the widget layout for reliable rendering. Tests covering datascience ignored IDs were added alongside interface fixes in IgnoreMixin to prevent regressions.
January 2025
11 Commits • 2 Features
Jan 1, 2025January 2025 highlights two major feature deliveries for ZeitOnline/vivi focused on data integrity in publishing pipelines and improved tagging/keyword UX. The Data Science publish flow was enhanced to ignore unique IDs, reducing publish-time risks and data leakage by refactoring publish_json to use a private _json path with an exclusion mapping. ArticleDataScience now inherits IgnoreMixin to apply the exclusion, and the configuration supports ignoring multiple IDs, including a rename to uniqueids. This work included a dedicated changelog, an array-based ignore configuration, and tests to validate the behavior. Separately, Tagging and Keyword Widget UI was improved to show topic links next to tags, include the URL pathname in link text for clarity, truncate long keywords with ellipsis and reveal full content on hover, and stabilize the widget layout for reliable rendering. Tests covering datascience ignored IDs were added alongside interface fixes in IgnoreMixin to prevent regressions.
December 2024
2 Commits
Dec 1, 2024December 2024 monthly summary for ZeitOnline/vivi focusing on stability enhancements to the publishing workflow and resilience against missing metadata.
2 Commits
Dec 1, 2024December 2024 monthly summary for ZeitOnline/vivi focusing on stability enhancements to the publishing workflow and resilience against missing metadata.
December 2024
November 2024
26 Commits • 5 Features
Nov 1, 2024November 2024 performance summary for ZeitOnline/vivi: delivered major authoring and media improvements, expanded localization coverage, and ensured branding readiness — all while maintaining release quality and code health.
November 2024
26 Commits • 5 Features
Nov 1, 2024November 2024 performance summary for ZeitOnline/vivi: delivered major authoring and media improvements, expanded localization coverage, and ensured branding readiness — all while maintaining release quality and code health.
Activity
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Quality Metrics
Correctness91.6%
Maintainability92.0%
Architecture89.0%
Performance87.6%
AI Usage20.0%
Skills & Technologies
Programming Languages
CSSGettextGitJavaScriptMOPOPythonXMLplaintext
Technical Skills
API DesignAPI DevelopmentAPI IntegrationBackend DevelopmentBrowser AutomationCMS DevelopmentCSSCSS StylingCode CleanupCode OrganizationCode RefactoringConfiguration ManagementContent ManagementContent Management SystemContent Management Systems
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline