it-at-m/Wahllokalsystem
Oct 2024 – May 2025
7 Months active
Languages Used
JavaSQLXMLYAMLHTTPMarkdownTypeScriptJavaScript
Technical Skills
Backend DevelopmentDependency InjectionJavaSecurityUnit TestingAES Encryption
GerhardPx
PROFILE
Gerhardpx
Gerhard Zollner contributed to the it-at-m/Wahllokalsystem repository by delivering secure backend features, robust API endpoints, and maintainable frontend components over seven months. He refactored encryption logic for testability and maintainability, implemented data models and migrations for election result justifications, and expanded security testing for critical endpoints. Using Java, Spring Boot, and Vue.js, Gerhard improved code quality through formatting, dependency injection, and comprehensive test coverage, including integration and unit tests. His work addressed both backend and frontend reliability, aligning with CI pipelines to ensure rapid feedback and safe deployments, demonstrating depth in secure, production-ready software engineering and cross-stack development.
Overall Statistics
Feature vs Bugs
69%Features
Repository Contributions
111Total
Bugs
14
Commits
111
Features
31
Lines of code
9,494
Activity Months7
Your Network
28 people
Work History
May 2025
1 Commits • 1 Features
May 1, 2025May 2025 monthly summary for it-at-m/Wahllokalsystem: Focused on strengthening test coverage and reliability of event-driven communication. Expanded BaseStepWahltagInit tests to assert that importWahlterminDatenDone is emitted under defined conditions, improving component interaction guarantees and catching regressions early. The work was coordinated with existing CI pipelines to ensure rapid feedback and lower risk on deployment.
1 Commits • 1 Features
May 1, 2025May 2025 monthly summary for it-at-m/Wahllokalsystem: Focused on strengthening test coverage and reliability of event-driven communication. Expanded BaseStepWahltagInit tests to assert that importWahlterminDatenDone is emitted under defined conditions, improving component interaction guarantees and catching regressions early. The work was coordinated with existing CI pipelines to ensure rapid feedback and lower risk on deployment.
May 2025
April 2025
18 Commits • 2 Features
Apr 1, 2025April 2025 focused on delivering user-centric UI improvements in Wahllokalsystem and strengthening test coverage for NFC-related functionality. Key work centered on implementing a new BaseIconWahlbezirksart component, integrating it with the user store for icon rendering by WahlbezirksArt, with robust fallbacks for unauthenticated users and undefined values, plus extensive unit and story updates and code-quality refinements. The NFC Filter Test Suite was expanded with a new NfcFilterTest class and tests for POST /businessActions/wahlen/{wahltagID}, including Unicode/test consolidation and minor formatting improvements.
April 2025
18 Commits • 2 Features
Apr 1, 2025April 2025 focused on delivering user-centric UI improvements in Wahllokalsystem and strengthening test coverage for NFC-related functionality. Key work centered on implementing a new BaseIconWahlbezirksart component, integrating it with the user store for icon rendering by WahlbezirksArt, with robust fallbacks for unauthenticated users and undefined values, plus extensive unit and story updates and code-quality refinements. The NFC Filter Test Suite was expanded with a new NfcFilterTest class and tests for POST /businessActions/wahlen/{wahltagID}, including Unicode/test consolidation and minor formatting improvements.
February 2025
26 Commits • 8 Features
Feb 1, 2025February 2025 monthly performance for it-at-m/Wahllokalsystem focused on delivering business value through test quality, build stability, and new domain capabilities. Key outcomes include ArchUnit-driven test renaming and integration across client/config/domain/rest/services with an ArchUnit version bump; extensive code formatting and quality improvements; cross-module CodeRabbit integration; new Election Day configuration (KonfigurierterWahltag) with client support and getKonfigurierteWahltage; WireMock-based testing enhancements; and targeted bug fixes improving reliability (resetWahlen exception handling, merge conflict resolution).
26 Commits • 8 Features
Feb 1, 2025February 2025 monthly performance for it-at-m/Wahllokalsystem focused on delivering business value through test quality, build stability, and new domain capabilities. Key outcomes include ArchUnit-driven test renaming and integration across client/config/domain/rest/services with an ArchUnit version bump; extensive code formatting and quality improvements; cross-module CodeRabbit integration; new Election Day configuration (KonfigurierterWahltag) with client support and getKonfigurierteWahltage; WireMock-based testing enhancements; and targeted bug fixes improving reliability (resetWahlen exception handling, merge conflict resolution).
February 2025
January 2025
25 Commits • 11 Features
Jan 1, 2025January 2025 monthly summary for Wahllokalsystem: Delivered end-to-end results functionality with data layer and AuthService permissions, enabling secure results workflows and integration readiness. Added an example GET all request to showcase API capabilities. Implemented AuthService migrations and configuration, and updated migrations naming. Refactored DTOs and moved Begruendungen-related DTOs to a common module, with security configuration tests to improve defense-in-depth. Completed extensive code quality and documentation improvements (Spotless formatting, index annotation cleanup, docs updates, and applied review feedback). Resolved conflicts and adjusted Flyway script numbering to ensure reliable migrations in the 2025-01 batch. Business value: improved data integrity, secure access controls, clearer API contracts, and faster iteration cycles with safer deployments.
January 2025
25 Commits • 11 Features
Jan 1, 2025January 2025 monthly summary for Wahllokalsystem: Delivered end-to-end results functionality with data layer and AuthService permissions, enabling secure results workflows and integration readiness. Added an example GET all request to showcase API capabilities. Implemented AuthService migrations and configuration, and updated migrations naming. Refactored DTOs and moved Begruendungen-related DTOs to a common module, with security configuration tests to improve defense-in-depth. Completed extensive code quality and documentation improvements (Spotless formatting, index annotation cleanup, docs updates, and applied review feedback). Resolved conflicts and adjusted Flyway script numbering to ensure reliable migrations in the 2025-01 batch. Business value: improved data integrity, secure access controls, clearer API contracts, and faster iteration cycles with safer deployments.
December 2024
15 Commits • 2 Features
Dec 1, 2024December 2024 in Wahllokalsystem focused on security-first delivery and data-justification capabilities, delivering two major features with strong business value and a solid maintenability baseline. Expanded Wahlvorstand endpoint security tests to cover unauthorized and authenticated access, POST operations, CSRF handling adjustments, and robust test scaffolding across nested and success paths, reducing risk of unauthorized data access and regressions. Implemented Begruendung (Justification) for election results reporting, including data models, service/controller, migrations, authorities, refactoring, and OpenAPI docs, enabling auditable, standards-compliant justification data for regulatory reporting. Improvements in code quality and CI hygiene complemented these deliveries (spotless formatting, merge conflict resolution, CodeRabbit review, and constant adjustments). Overall impact: higher security posture, clearer API contracts, and production-readiness for critical election data workflows, with demonstrated competencies in security testing, data modeling, API design, and maintainable code practices.
15 Commits • 2 Features
Dec 1, 2024December 2024 in Wahllokalsystem focused on security-first delivery and data-justification capabilities, delivering two major features with strong business value and a solid maintenability baseline. Expanded Wahlvorstand endpoint security tests to cover unauthorized and authenticated access, POST operations, CSRF handling adjustments, and robust test scaffolding across nested and success paths, reducing risk of unauthorized data access and regressions. Implemented Begruendung (Justification) for election results reporting, including data models, service/controller, migrations, authorities, refactoring, and OpenAPI docs, enabling auditable, standards-compliant justification data for regulatory reporting. Improvements in code quality and CI hygiene complemented these deliveries (spotless formatting, merge conflict resolution, CodeRabbit review, and constant adjustments). Overall impact: higher security posture, clearer API contracts, and production-readiness for critical election data workflows, with demonstrated competencies in security testing, data modeling, API design, and maintainable code practices.
December 2024
November 2024
25 Commits • 6 Features
Nov 1, 2024Month 2024-11 (Wahllokalsystem) focused on delivering security, reliability, and maintainability improvements for the Wahllokalsystem repo. Key work included a security-focused refactor of EncryptionBuilder with complete tests, cleanup of obsolete components, comprehensive test and configuration updates, and pervasive code quality improvements. Bugs fixed enhanced stability and test correctness, while testing infrastructure and naming consistency were strengthened to enable faster, CI-friendly iterations. Overall, the month delivered measurable business value through more robust encryption, reduced technical debt, and safer, more maintainable codebase.
November 2024
25 Commits • 6 Features
Nov 1, 2024Month 2024-11 (Wahllokalsystem) focused on delivering security, reliability, and maintainability improvements for the Wahllokalsystem repo. Key work included a security-focused refactor of EncryptionBuilder with complete tests, cleanup of obsolete components, comprehensive test and configuration updates, and pervasive code quality improvements. Bugs fixed enhanced stability and test correctness, while testing infrastructure and naming consistency were strengthened to enable faster, CI-friendly iterations. Overall, the month delivered measurable business value through more robust encryption, reduced technical debt, and safer, more maintainable codebase.
October 2024
1 Commits • 1 Features
Oct 1, 2024Month: 2024-10 | Wahllokalsystem (it-at-m/Wahllokalsystem) delivered a key architectural refactor focused on encryption code quality and testability. EncryptionBuilder now depends on CipherBuilder via constructor injection, removing direct instantiation within encryptValue and decryptValue. This reduces coupling, enables easier mocking in unit tests, and improves maintainability of a security-critical module. Commit: 197feb2a72a0c859693f3fe2009226dd47791cc2 (message: Aktueller Stand). Major bugs fixed: none reported for this repository in 2024-10. Overall impact: safer, more maintainable encryption flow with better testability, contributing to faster, lower-risk releases. Technologies/skills demonstrated: dependency injection, refactoring for testability, secure code maintenance, and repository discipline.
1 Commits • 1 Features
Oct 1, 2024Month: 2024-10 | Wahllokalsystem (it-at-m/Wahllokalsystem) delivered a key architectural refactor focused on encryption code quality and testability. EncryptionBuilder now depends on CipherBuilder via constructor injection, removing direct instantiation within encryptValue and decryptValue. This reduces coupling, enables easier mocking in unit tests, and improves maintainability of a security-critical module. Commit: 197feb2a72a0c859693f3fe2009226dd47791cc2 (message: Aktueller Stand). Major bugs fixed: none reported for this repository in 2024-10. Overall impact: safer, more maintainable encryption flow with better testability, contributing to faster, lower-risk releases. Technologies/skills demonstrated: dependency injection, refactoring for testability, secure code maintenance, and repository discipline.
October 2024
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Quality Metrics
Correctness91.0%
Maintainability91.8%
Architecture89.4%
Performance86.8%
AI Usage20.8%
Skills & Technologies
Programming Languages
HTTPJavaJavaScriptMarkdownSQLTypeScriptVueXMLYAML
Technical Skills
AES EncryptionAPI Client ImplementationAPI DevelopmentAPI IntegrationAPI TestingArchUnitAuthentication and AuthorizationBackend DevelopmentCode ClarityCode CleanupCode FormattingCode MaintenanceCode QualityCode RefactoringComponent Design
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