LimeSurvey/LimeSurvey
Nov 2024 – Feb 2026
15 Months active
Languages Used
JavaScriptPHPTwigXMLCSSSCSSSQLHTML
Technical Skills
Backend DevelopmentBug FixingCSSFront End DevelopmentFront-end DevelopmentFrontend Development
Gabriel Jenik
PROFILE
Gabriel Jenik
Gabriel Jenik contributed extensively to the LimeSurvey/LimeSurvey repository, delivering robust backend and frontend solutions over 15 months. He engineered and stabilized features such as two-factor authentication, multilingual survey handling, and export reliability, while resolving complex bugs in areas like permissions, data integrity, and UI consistency. Gabriel’s technical approach combined PHP, JavaScript, and SQL, emphasizing security hardening, compatibility across PHP versions, and maintainable code through refactoring and modularization. His work addressed real-world issues including XSS prevention, configuration robustness, and accessibility, resulting in a more secure, reliable, and user-friendly platform. The depth of his contributions improved both developer and end-user experience.
Overall Statistics
Feature vs Bugs
19%Features
Repository Contributions
100Total
Bugs
66
Commits
100
Features
15
Lines of code
204,166
Activity Months15
Your Network
27 people
Work History
February 2026
2 Commits
Feb 1, 2026February 2026: Delivered targeted permissions improvements in LimeSurvey/LimeSurvey, focusing on reliability and correctness of access control. Implemented two critical fixes to the Permissions System that correct permission reporting and enable proper User Group assignment within Survey Permissions, reinforcing security and admin productivity. These changes were tracked via two focused commits tied to issue fixes, enabling traceability and faster validation.
2 Commits
Feb 1, 2026February 2026: Delivered targeted permissions improvements in LimeSurvey/LimeSurvey, focusing on reliability and correctness of access control. Implemented two critical fixes to the Permissions System that correct permission reporting and enable proper User Group assignment within Survey Permissions, reinforcing security and admin productivity. These changes were tracked via two focused commits tied to issue fixes, enabling traceability and faster validation.
February 2026
December 2025
1 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for LimeSurvey/LimeSurvey: Focused on improving survey clarity for semantic differential questions by delivering a UI enhancement and fixing a critical label alignment bug. The changes introduce a dedicated CSS class to ensure correct alignment of left/right labels when options are present, improving visual consistency across surveys and reducing misinterpretation of responses.
December 2025
1 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for LimeSurvey/LimeSurvey: Focused on improving survey clarity for semantic differential questions by delivering a UI enhancement and fixing a critical label alignment bug. The changes introduce a dedicated CSS class to ensure correct alignment of left/right labels when options are present, improving visual consistency across surveys and reducing misinterpretation of responses.
November 2025
1 Commits
Nov 1, 2025Month: 2025-11 Focused on security hardening and stability for LimeSurvey/LimeSurvey. Delivered a critical fix to prevent reflected XSS by encoding the CSRF token in HTML. Implemented in commit 5fa0f5ca3bb53afa48a0e5f20a8b9db0296e9004 as part of the 6.15.10+250901 patch set (issue #20271). Resulting changes reduce risk of token-based injection and improve resilience in rendered templates across the product.
1 Commits
Nov 1, 2025Month: 2025-11 Focused on security hardening and stability for LimeSurvey/LimeSurvey. Delivered a critical fix to prevent reflected XSS by encoding the CSRF token in HTML. Implemented in commit 5fa0f5ca3bb53afa48a0e5f20a8b9db0296e9004 as part of the 6.15.10+250901 patch set (issue #20271). Resulting changes reduce risk of token-based injection and improve resilience in rendered templates across the product.
November 2025
October 2025
6 Commits • 1 Features
Oct 1, 2025October 2025 for LimeSurvey/LimeSurvey focused on reliability, security, and maintainability. Implemented data-integrity fixes after schema changes, corrected email placeholders, ensured accurate survey progress navigation, hardened admin UI against stored XSS, and removed bootstrap-switch to streamline frontend. Result: more reliable invitations and surveys, safer admin surface, and reduced technical debt, enabling faster delivery and improved user trust.
October 2025
6 Commits • 1 Features
Oct 1, 2025October 2025 for LimeSurvey/LimeSurvey focused on reliability, security, and maintainability. Implemented data-integrity fixes after schema changes, corrected email placeholders, ensured accurate survey progress navigation, hardened admin UI against stored XSS, and removed bootstrap-switch to streamline frontend. Result: more reliable invitations and surveys, safer admin surface, and reduced technical debt, enabling faster delivery and improved user trust.
September 2025
8 Commits • 2 Features
Sep 1, 2025Concise monthly summary for 2025-09 focusing on security hardening, LimeSurvey 6 compatibility, and UI/export reliability improvements. Delivered key features, critical bug fixes, and UX refinements that improve data integrity, cross-version compatibility, and admin efficiency, aligning with business goals of reliability and scalable survey administration.
8 Commits • 2 Features
Sep 1, 2025Concise monthly summary for 2025-09 focusing on security hardening, LimeSurvey 6 compatibility, and UI/export reliability improvements. Delivered key features, critical bug fixes, and UX refinements that improve data integrity, cross-version compatibility, and admin efficiency, aligning with business goals of reliability and scalable survey administration.
September 2025
August 2025
6 Commits
Aug 1, 2025Month: 2025-08 | LimeSurvey/LimeSurvey Key features delivered: - Privacy/security: Fixed anonymization of survey responses during activation by adding an HTML ID attribute to the anonymization option, ensuring privacy integrity. Commit: 3d49361f3723bc9b7da8c0aa82d1cd2208fd462d. Issue #20192. - UI/UX stability: Unified datepicker initialization fixes across UI (survey modals and batch editing) to prevent crashes when certain date fields are absent. Commits: 955aae21d8f6cb78da00ad2d6a27f5df7c11aa6e and 75af5c6e1170f3b06e08f5988a3d1080894a2795. Issues #20189 and #20133. - UX context preservation: Correct initial question group context when adding a question to preserve the correct group ID and improve user flow. Commit: 45718479c9bd8fda047fadb313de91b95b0f83eb. Issue #19597. - Data reliability for printing: Printable surveys on SQL Server now prints reliably by removing a duplicate ORDER BY (sortorder, code). Commit: 9ee0a3567b641e264049ec8c8cc917e0218b709c. Issue #20175. - Data integrity on type change: Cleanup removes invalid answer options when changing a question type to one that does not support options, maintaining a clean data model. Commit: fdf9f34637b854e122c1c2b4acb6a2c919fe85ad. Issue #20185. Major bugs fixed: - Anonymization privacy issue during activation - JavaScript/date picker crashes in survey modals and batch editing - Incorrect initial context when adding questions - SQL Server print issues due to duplicate ORDER BY - Orphaned/invalid answer options after changing question types Overall impact and accomplishments: - Strengthened privacy guarantees for survey responses, reducing risk of data leakage. - Stabilized authoring and participation flows with robust UI initializations, lowering support tickets and user friction. - Improved data integrity and downstream reporting/printing reliability on SQL Server environments. - Accelerated QA and delivery velocity by addressing root causes in a focused set of fixes with clear traceability. Technologies/skills demonstrated: - Frontend: JavaScript DOM checks, robust datepicker handling, and UI state preservation - Backend/SQL: SQL Server compatibility adjustments, data-model integrity when changing question types -Code health: issue tracing from UI bugs to commits, mapping fixes to customer-impacting scenarios Business value: - Enhanced privacy compliance, user trust, and platform reliability for survey authors and respondents; reduced risk of misreported data and failed prints; improved user experience for survey creation and management.
August 2025
6 Commits
Aug 1, 2025Month: 2025-08 | LimeSurvey/LimeSurvey Key features delivered: - Privacy/security: Fixed anonymization of survey responses during activation by adding an HTML ID attribute to the anonymization option, ensuring privacy integrity. Commit: 3d49361f3723bc9b7da8c0aa82d1cd2208fd462d. Issue #20192. - UI/UX stability: Unified datepicker initialization fixes across UI (survey modals and batch editing) to prevent crashes when certain date fields are absent. Commits: 955aae21d8f6cb78da00ad2d6a27f5df7c11aa6e and 75af5c6e1170f3b06e08f5988a3d1080894a2795. Issues #20189 and #20133. - UX context preservation: Correct initial question group context when adding a question to preserve the correct group ID and improve user flow. Commit: 45718479c9bd8fda047fadb313de91b95b0f83eb. Issue #19597. - Data reliability for printing: Printable surveys on SQL Server now prints reliably by removing a duplicate ORDER BY (sortorder, code). Commit: 9ee0a3567b641e264049ec8c8cc917e0218b709c. Issue #20175. - Data integrity on type change: Cleanup removes invalid answer options when changing a question type to one that does not support options, maintaining a clean data model. Commit: fdf9f34637b854e122c1c2b4acb6a2c919fe85ad. Issue #20185. Major bugs fixed: - Anonymization privacy issue during activation - JavaScript/date picker crashes in survey modals and batch editing - Incorrect initial context when adding questions - SQL Server print issues due to duplicate ORDER BY - Orphaned/invalid answer options after changing question types Overall impact and accomplishments: - Strengthened privacy guarantees for survey responses, reducing risk of data leakage. - Stabilized authoring and participation flows with robust UI initializations, lowering support tickets and user friction. - Improved data integrity and downstream reporting/printing reliability on SQL Server environments. - Accelerated QA and delivery velocity by addressing root causes in a focused set of fixes with clear traceability. Technologies/skills demonstrated: - Frontend: JavaScript DOM checks, robust datepicker handling, and UI state preservation - Backend/SQL: SQL Server compatibility adjustments, data-model integrity when changing question types -Code health: issue tracing from UI bugs to commits, mapping fixes to customer-impacting scenarios Business value: - Enhanced privacy compliance, user trust, and platform reliability for survey authors and respondents; reduced risk of misreported data and failed prints; improved user experience for survey creation and management.
July 2025
4 Commits
Jul 1, 2025July 2025 Monthly Summary for LimeSurvey/LimeSurvey focusing on UI reliability, stability, and correctness across the frontend and translation layers. The month delivered targeted fixes that improved user experience, reduced risk of broken UI flows, and reinforced maintainability with safer configuration handling and escaping logic.
4 Commits
Jul 1, 2025July 2025 Monthly Summary for LimeSurvey/LimeSurvey focusing on UI reliability, stability, and correctness across the frontend and translation layers. The month delivered targeted fixes that improved user experience, reduced risk of broken UI flows, and reinforced maintainability with safer configuration handling and escaping logic.
July 2025
June 2025
11 Commits • 1 Features
Jun 1, 2025June 2025 performance highlights for LimeSurvey/LimeSurvey focused on reliability, security, and user experience. Delivered SPSS export data integrity fixes, UI enhancements for reporting and surveys, and strengthened deployment/configuration. Implemented security hardening to suppress sensitive error details, stabilized 2FA admin flows, and improved compatibility and pre-install checks to reduce deployment risk. These outcomes reduce export errors, minimize downtime, and empower admins and developers with safer, faster operations.
June 2025
11 Commits • 1 Features
Jun 1, 2025June 2025 performance highlights for LimeSurvey/LimeSurvey focused on reliability, security, and user experience. Delivered SPSS export data integrity fixes, UI enhancements for reporting and surveys, and strengthened deployment/configuration. Implemented security hardening to suppress sensitive error details, stabilized 2FA admin flows, and improved compatibility and pre-install checks to reduce deployment risk. These outcomes reduce export errors, minimize downtime, and empower admins and developers with safer, faster operations.
May 2025
9 Commits
May 1, 2025May 2025 — LimeSurvey/LimeSurvey: Focused on reliability, UX responsiveness, and data integrity improvements across multi-recipient notifications, group question operations, and permission handling. Delivered fixes that reduce notification failures, ensure correct ordering, and improve error handling and localization.
9 Commits
May 1, 2025May 2025 — LimeSurvey/LimeSurvey: Focused on reliability, UX responsiveness, and data integrity improvements across multi-recipient notifications, group question operations, and permission handling. Delivered fixes that reduce notification failures, ensure correct ordering, and improve error handling and localization.
May 2025
April 2025
9 Commits • 1 Features
Apr 1, 2025April 2025 — LimeSurvey/LimeSurvey: Strengthened security, performance, and data integrity while enhancing accessibility and end-user experience. Delivered major updates to authentication, navigation reliability, and content management workflows, translating into clear business value through improved security posture, reliability, and user satisfaction.
April 2025
9 Commits • 1 Features
Apr 1, 2025April 2025 — LimeSurvey/LimeSurvey: Strengthened security, performance, and data integrity while enhancing accessibility and end-user experience. Delivered major updates to authentication, navigation reliability, and content management workflows, translating into clear business value through improved security posture, reliability, and user satisfaction.
March 2025
8 Commits • 2 Features
Mar 1, 2025March 2025 (2025-03) monthly summary for LimeSurvey/LimeSurvey. Highlights include security hardening across rendering, JS assets, and secret handling; user experience improvements with breadcrumb display; spam reduction via registration email throttling; Admin UI stability with PHP 8.2 compatibility; and strengthened data recovery robustness to ensure integrity of participant tables linked to existing surveys. Overall impact: reduced security risk, lower spam-related support load, improved navigation in complex surveys, stable admin interfaces, and more reliable data restoration. Business value and accomplishments: - Security posture improved through library upgrades, safer code injections, secret encryption, and XSS prevention. - User experience enhanced by dynamic breadcrumbs and clear survey/group context. - Operational reliability increased via admin UI compatibility and robust data recovery checks. - Demonstrated proficiency in security practices, PHP 8.2 readiness, encryption, and data integrity.
8 Commits • 2 Features
Mar 1, 2025March 2025 (2025-03) monthly summary for LimeSurvey/LimeSurvey. Highlights include security hardening across rendering, JS assets, and secret handling; user experience improvements with breadcrumb display; spam reduction via registration email throttling; Admin UI stability with PHP 8.2 compatibility; and strengthened data recovery robustness to ensure integrity of participant tables linked to existing surveys. Overall impact: reduced security risk, lower spam-related support load, improved navigation in complex surveys, stable admin interfaces, and more reliable data restoration. Business value and accomplishments: - Security posture improved through library upgrades, safer code injections, secret encryption, and XSS prevention. - User experience enhanced by dynamic breadcrumbs and clear survey/group context. - Operational reliability increased via admin UI compatibility and robust data recovery checks. - Demonstrated proficiency in security practices, PHP 8.2 readiness, encryption, and data integrity.
March 2025
February 2025
14 Commits • 4 Features
Feb 1, 2025February 2025 performance snapshot for LimeSurvey/LimeSurvey: delivered multilingual survey enhancements, stabilized the theme/UI and font handling, modernized platform dependencies for PHP 8.3, and fixed a broad set of reliability and data-handling bugs. These efforts reduce upgrade risk, improve user experience, and strengthen data integrity and security across the platform.
February 2025
14 Commits • 4 Features
Feb 1, 2025February 2025 performance snapshot for LimeSurvey/LimeSurvey: delivered multilingual survey enhancements, stabilized the theme/UI and font handling, modernized platform dependencies for PHP 8.3, and fixed a broad set of reliability and data-handling bugs. These efforts reduce upgrade risk, improve user experience, and strengthen data integrity and security across the platform.
January 2025
9 Commits • 2 Features
Jan 1, 2025January 2025 focused on stabilizing core delivery, upgrading workflow reliability, and boosting performance for LimeSurvey. Delivered targeted fixes and foundational improvements across database upgrade, UI, data import, and testing, with a strong emphasis on business value and maintainability. Key outcomes include MSSQL upgrade compatibility workarounds, UI/UX stability refinements, data handling resiliency, and a strategic migration to a modern ZipArchive-based workflow, all contributing to smoother upgrades, more reliable deployments, and faster feature delivery.
9 Commits • 2 Features
Jan 1, 2025January 2025 focused on stabilizing core delivery, upgrading workflow reliability, and boosting performance for LimeSurvey. Delivered targeted fixes and foundational improvements across database upgrade, UI, data import, and testing, with a strong emphasis on business value and maintainability. Key outcomes include MSSQL upgrade compatibility workarounds, UI/UX stability refinements, data handling resiliency, and a strategic migration to a modern ZipArchive-based workflow, all contributing to smoother upgrades, more reliable deployments, and faster feature delivery.
January 2025
December 2024
5 Commits • 1 Features
Dec 1, 2024Concise monthly summary for 2024-12 focusing on key accomplishments and business value. This period focused on stability, data integrity, and expanding plugin flexibility within LimeSurvey/LimeSurvey. Implemented safeguards to prevent data URI crashes in surveys and ensured robust data handling during imports. Expanded plugin capabilities, improved UI reliability after AJAX updates, and strengthened test reliability for export statistics. Delivered tangible business value through improved user stability, data accuracy, and maintainability.
December 2024
5 Commits • 1 Features
Dec 1, 2024Concise monthly summary for 2024-12 focusing on key accomplishments and business value. This period focused on stability, data integrity, and expanding plugin flexibility within LimeSurvey/LimeSurvey. Implemented safeguards to prevent data URI crashes in surveys and ensured robust data handling during imports. Expanded plugin capabilities, improved UI reliability after AJAX updates, and strengthened test reliability for export statistics. Delivered tangible business value through improved user stability, data accuracy, and maintainability.
November 2024
7 Commits
Nov 1, 2024November 2024 (Month: 2024-11) focused on stabilizing LimeSurvey's survey runtime and improving accessibility and user experience through a focused set of bug fixes. No new features were released this month; the priority was robustness, accessibility, and predictable user flows across core survey components.
7 Commits
Nov 1, 2024November 2024 (Month: 2024-11) focused on stabilizing LimeSurvey's survey runtime and improving accessibility and user experience through a focused set of bug fixes. No new features were released this month; the priority was robustness, accessibility, and predictable user flows across core survey components.
November 2024
Activity
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Quality Metrics
Correctness86.6%
Maintainability86.2%
Architecture77.0%
Performance80.8%
AI Usage20.4%
Skills & Technologies
Programming Languages
CSSHTMLJavaScriptMarkdownPHPSCSSSQLTwigXML
Technical Skills
API IntegrationAPI developmentAuthenticationBackend DevelopmentBootstrapBug FixingBuild ToolsCSSCode RefactoringCompatibilityConfiguration ManagementDOM ManipulationData ExportData HandlingDatabase Interaction
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline