UniversityOfHelsinkiCS/palaute
May 2025 – Nov 2025
7 Months active
Languages Used
BashJavaScriptTypeScriptJSXPythonReacti18nexttsx
Technical Skills
API DevelopmentBackend DevelopmentCode CleanupDatabase ManagementDevOpsFront-end Development
Sini Arkko
PROFILE
Sini Arkko
Sini Arkko contributed to the UniversityOfHelsinkiCS/palaute repository by delivering robust features and reliability improvements across survey, feedback, and reporting modules. She engineered automated database restore workflows, enhanced cross-organization question copying, and implemented personalized email communications, focusing on maintainability and data integrity. Using technologies such as React, TypeScript, and Node.js, Sini refactored core components, improved accessibility, and streamlined UI/UX for both teachers and students. Her work included cache management, XLSX export enhancements, and comprehensive end-to-end testing. Through targeted refactoring and modularization, Sini ensured scalable, maintainable code that improved user experience and supported evolving business requirements.
Overall Statistics
Feature vs Bugs
63%Features
Repository Contributions
160Total
Bugs
29
Commits
160
Features
50
Lines of code
6,390
Activity Months7
Your Network
13 people
Work History
November 2025
2 Commits • 2 Features
Nov 1, 2025November 2025 performance summary for palaute. Delivered two key enhancements that improve accessibility and robustness, delivering clear business value and a streamlined user experience.
2 Commits • 2 Features
Nov 1, 2025November 2025 performance summary for palaute. Delivered two key enhancements that improve accessibility and robustness, delivering clear business value and a streamlined user experience.
November 2025
October 2025
45 Commits • 9 Features
Oct 1, 2025October 2025 performance summary for UniversityOfHelsinkiCS/palaute: Delivered end-to-end UI polish for Feedback Target Page, enhanced navigation and accessibility, improved URL handling and course code safety, and executed strategic refactors and cleanup to improve maintainability. Implemented teacher-centric navigation, customizable reminder emails, and ensured data integrity through semantic HTML fixes, accessible mailto links, and XLSX sheet name sanitization. These changes delivered improved user experience, stronger product safety, and higher engineering velocity.
October 2025
45 Commits • 9 Features
Oct 1, 2025October 2025 performance summary for UniversityOfHelsinkiCS/palaute: Delivered end-to-end UI polish for Feedback Target Page, enhanced navigation and accessibility, improved URL handling and course code safety, and executed strategic refactors and cleanup to improve maintainability. Implemented teacher-centric navigation, customizable reminder emails, and ensured data integrity through semantic HTML fixes, accessible mailto links, and XLSX sheet name sanitization. These changes delivered improved user experience, stronger product safety, and higher engineering velocity.
September 2025
29 Commits • 9 Features
Sep 1, 2025September 2025 performance on UniversityOfHelsinkiCS/palaute focused on delivering user-centric UX improvements, expanding course discovery, and solidifying reliability. The month combined feature delivery with targeted fixes to reduce risk, improve compliance, and accelerate team velocity, aligning with business goals of better teacher engagement, accurate course search, and scalable survey tooling.
29 Commits • 9 Features
Sep 1, 2025September 2025 performance on UniversityOfHelsinkiCS/palaute focused on delivering user-centric UX improvements, expanding course discovery, and solidifying reliability. The month combined feature delivery with targeted fixes to reduce risk, improve compliance, and accelerate team velocity, aligning with business goals of better teacher engagement, accurate course search, and scalable survey tooling.
September 2025
August 2025
16 Commits • 3 Features
Aug 1, 2025Monthly summary for 2025-08 (UniversityOfHelsinkiCS/palaute): Key features delivered - Email communications: Personalised welcome messages for new teachers and institution branding in email greetings; updated email statistics view tests to improve reliability. Commits include: 23f130c8e9a571a2ff485f408c9072dadaffe527, 0b59e3ccc6d9746774f9e837e87f063140e95925, df7cb1297f8426ec6480ae81ef3e7b2ed845c777. - Small course feedback feature with warning dialog: Added a warning dialog for students accessing feedback surveys via direct links and expanded test coverage. Commits: 157b17718370a385947a489eef373c48714f630e, 9b1c0af23f1e7f8e89c74e2cee383212641a9bc5, 16eb49e9a74cb620b0b8e672213a63fd7122095b. - XLSX export enhancements and access control: Course codes in course realisation sheet, programme-level questions, organization-specific filtering, and improved access checks; substantial refactoring for readability and maintainability. Commits: f7bdf662c191cd1efb925d816a350aefcd733b2b, 0099ce5f3464c7d1ad7d159c7626775d53a82670, 106e96a3bb325bf7caf7d1570c873a042584fc19, 45f705a6cb11e8654b212e42894fc10bb7b42e68, e111b66e32e39caebc051a1163616c47c6bb0c39, 0543fba96176fe588640d2c436f8f2f0ee16c004, f6fe30cff9591a60c037f75310672a1b18a9c8c7. Major bugs fixed - Cache invalidation and data consistency for organization surveys: Invalidate cache after editing an organization survey and ensure feedbackTarget updates after administrative changes, preventing stale data. Commits: e8f60cac406e404aa6bd6ff650d082b78dcddd6c, 3eb9f0f806c3724e9e2dbd1b2e0706d8794640bd. - Translation wording fix: Improve clarity by fixing English grammar and wording in translations. Commit: 57c445f2ba0e4149606e45dffd105324d381bae7. Overall impact and accomplishments - Data integrity and reliability: Cache invalidation and corrected feedback targeting reduce stale data, improving decision-making and reporting accuracy. - Customer experience: Personalised onboarding emails and consistent branding enhance teacher onboarding and communications. - Data export and governance: Enhanced XLSX exports with relevant data points and stricter access control, enabling compliant reporting and safer data sharing. - Quality and maintainability: Targeted refactors, helper utils consolidation, and expanded test coverage improved long-term maintainability and test reliability. Technologies and skills demonstrated - Cache management and data consistency patterns; end-to-end and unit test maintenance; email templating and branding; XLSX export logic and access control; translation QA and wording improvements; code refactoring to utils and modularization; test coverage expansion.
August 2025
16 Commits • 3 Features
Aug 1, 2025Monthly summary for 2025-08 (UniversityOfHelsinkiCS/palaute): Key features delivered - Email communications: Personalised welcome messages for new teachers and institution branding in email greetings; updated email statistics view tests to improve reliability. Commits include: 23f130c8e9a571a2ff485f408c9072dadaffe527, 0b59e3ccc6d9746774f9e837e87f063140e95925, df7cb1297f8426ec6480ae81ef3e7b2ed845c777. - Small course feedback feature with warning dialog: Added a warning dialog for students accessing feedback surveys via direct links and expanded test coverage. Commits: 157b17718370a385947a489eef373c48714f630e, 9b1c0af23f1e7f8e89c74e2cee383212641a9bc5, 16eb49e9a74cb620b0b8e672213a63fd7122095b. - XLSX export enhancements and access control: Course codes in course realisation sheet, programme-level questions, organization-specific filtering, and improved access checks; substantial refactoring for readability and maintainability. Commits: f7bdf662c191cd1efb925d816a350aefcd733b2b, 0099ce5f3464c7d1ad7d159c7626775d53a82670, 106e96a3bb325bf7caf7d1570c873a042584fc19, 45f705a6cb11e8654b212e42894fc10bb7b42e68, e111b66e32e39caebc051a1163616c47c6bb0c39, 0543fba96176fe588640d2c436f8f2f0ee16c004, f6fe30cff9591a60c037f75310672a1b18a9c8c7. Major bugs fixed - Cache invalidation and data consistency for organization surveys: Invalidate cache after editing an organization survey and ensure feedbackTarget updates after administrative changes, preventing stale data. Commits: e8f60cac406e404aa6bd6ff650d082b78dcddd6c, 3eb9f0f806c3724e9e2dbd1b2e0706d8794640bd. - Translation wording fix: Improve clarity by fixing English grammar and wording in translations. Commit: 57c445f2ba0e4149606e45dffd105324d381bae7. Overall impact and accomplishments - Data integrity and reliability: Cache invalidation and corrected feedback targeting reduce stale data, improving decision-making and reporting accuracy. - Customer experience: Personalised onboarding emails and consistent branding enhance teacher onboarding and communications. - Data export and governance: Enhanced XLSX exports with relevant data points and stricter access control, enabling compliant reporting and safer data sharing. - Quality and maintainability: Targeted refactors, helper utils consolidation, and expanded test coverage improved long-term maintainability and test reliability. Technologies and skills demonstrated - Cache management and data consistency patterns; end-to-end and unit test maintenance; email templating and branding; XLSX export logic and access control; translation QA and wording improvements; code refactoring to utils and modularization; test coverage expansion.
July 2025
28 Commits • 9 Features
Jul 1, 2025July 2025 monthly summary for UniversityOfHelsinkiCS/palaute: Delivered a set of user-facing UI improvements, reliability fixes, and workflow optimizations that enhance admin productivity and user experience in org surveys and course management, while laying groundwork for maintainability and localization. Key achievements and outcomes: - Snackbar UI enhancements delivering clearer, more noticeable alerts: larger alerts, centered on screen, and a new close button. These changes reduce missed notifications and support better user actions. Representative commits: 1482ac8e51792b7c90b96be2fd7c1444b1ab0269; 92aa47f7289afbdbcb238eac5d73b94f6772024e. - Snackbar reliability and deduplication fixes: improved behavior with Escape-close and deduplication logic to prevent duplicate messages, improving UX consistency. Representative commits: 319349e7a95ba527aaea611fce91883c2be31f3c; 9f0f56f15824ae0fd8319f204f9e6dcc47e00ad3. - Architecture and platform stability: Dependency update to latest React Router to improve routing stability and performance. Representative commit: ce293fd5e9055061c815a2f3cf4ab789caeb3278. - Course search and org survey workflow improvements: Show course student counts in course search input when modifying org surveys; enhanced messaging around duplicates during student addition; added context and information during creation of org surveys. Representative commits: 8df4dec5aeefedfb71b0a045bee7607e5115ef80; 4bddad070f9184aa8b02119ee051b1e00003858b; 7f3715825a9ade6459baa7d1951058c9c085b43e. - Duplicate handling, counts, and refactors: Faster and more accurate removed-duplicate calculations during org survey updates; refactored utility functions to reduce duplication and copy-paste; improved messaging and data visibility. Representative commits: 961136a656f8a88193c3b3beba7001f872c151ad; 478aa7d120f21f8cb7b63918bc422cdceb3771fa; 1f047da3d23dd15eac90f14dbcc8cd6d4c5c2cc6; 98b6de923d0139820ae3fc5e1f56a08e70d2c89b. - Localization and UI polish: Finnish translation improvements for UI consistency. Representative commit: 8dfec39f7756e5de2bcb416cdbdce8d818758057; and snackbar-related UI refinements through extra info improvements and defaults. Representative commits: 1dfa7271d43af7c312f6aa2d356202aa7fb0b688; 5966ad7172155c3b1e9e22b1995a942c25d8bade; 2949b5bf7606edce7926878805a7fd0751b5426b. - User-facing UX and reliability enhancements: Bulk delete dialog for surveys, improved question editor UX refactor, and safeguards on editing while closed to preserve data integrity. Representative commits: 82959a251a6d87f6b0de602580b4881de05d0725; 6785857f3d737a147ec6fe9846a93732e7583d6e; d09fe82a3f84b7d3e1e427369a645f97d5dee27b; 8b1d7cc66f3e3baea5a591184b12a69957cc0054; 1216a238787f1812afec9c20b6fa589f98cbb911; 4d1f0f0d53c6c30999226b44ca4aca976d97278b. - Quality of life and stability fixes: Prevent editing feedback when closed and remove stale query keys for deleted surveys to ensure data consistency. Representative commits: 212bb18a9b1a6e4a90791e386bdd6d8cc9debf5c; 0c1f3bcae66f0dc62ebf1bd90ee41ad26aa7e4af. Overall impact: - Improved admin UX for org surveys and courses, reducing ambiguity around duplicates and updates, leading to higher data quality and faster decision-making. - Enhanced reliability and maintainability through refactors, tests-ready patterns, and localization improvements. - Prepared the ground for further performance optimizations and a more polished user experience across the palaute suite.
28 Commits • 9 Features
Jul 1, 2025July 2025 monthly summary for UniversityOfHelsinkiCS/palaute: Delivered a set of user-facing UI improvements, reliability fixes, and workflow optimizations that enhance admin productivity and user experience in org surveys and course management, while laying groundwork for maintainability and localization. Key achievements and outcomes: - Snackbar UI enhancements delivering clearer, more noticeable alerts: larger alerts, centered on screen, and a new close button. These changes reduce missed notifications and support better user actions. Representative commits: 1482ac8e51792b7c90b96be2fd7c1444b1ab0269; 92aa47f7289afbdbcb238eac5d73b94f6772024e. - Snackbar reliability and deduplication fixes: improved behavior with Escape-close and deduplication logic to prevent duplicate messages, improving UX consistency. Representative commits: 319349e7a95ba527aaea611fce91883c2be31f3c; 9f0f56f15824ae0fd8319f204f9e6dcc47e00ad3. - Architecture and platform stability: Dependency update to latest React Router to improve routing stability and performance. Representative commit: ce293fd5e9055061c815a2f3cf4ab789caeb3278. - Course search and org survey workflow improvements: Show course student counts in course search input when modifying org surveys; enhanced messaging around duplicates during student addition; added context and information during creation of org surveys. Representative commits: 8df4dec5aeefedfb71b0a045bee7607e5115ef80; 4bddad070f9184aa8b02119ee051b1e00003858b; 7f3715825a9ade6459baa7d1951058c9c085b43e. - Duplicate handling, counts, and refactors: Faster and more accurate removed-duplicate calculations during org survey updates; refactored utility functions to reduce duplication and copy-paste; improved messaging and data visibility. Representative commits: 961136a656f8a88193c3b3beba7001f872c151ad; 478aa7d120f21f8cb7b63918bc422cdceb3771fa; 1f047da3d23dd15eac90f14dbcc8cd6d4c5c2cc6; 98b6de923d0139820ae3fc5e1f56a08e70d2c89b. - Localization and UI polish: Finnish translation improvements for UI consistency. Representative commit: 8dfec39f7756e5de2bcb416cdbdce8d818758057; and snackbar-related UI refinements through extra info improvements and defaults. Representative commits: 1dfa7271d43af7c312f6aa2d356202aa7fb0b688; 5966ad7172155c3b1e9e22b1995a942c25d8bade; 2949b5bf7606edce7926878805a7fd0751b5426b. - User-facing UX and reliability enhancements: Bulk delete dialog for surveys, improved question editor UX refactor, and safeguards on editing while closed to preserve data integrity. Representative commits: 82959a251a6d87f6b0de602580b4881de05d0725; 6785857f3d737a147ec6fe9846a93732e7583d6e; d09fe82a3f84b7d3e1e427369a645f97d5dee27b; 8b1d7cc66f3e3baea5a591184b12a69957cc0054; 1216a238787f1812afec9c20b6fa589f98cbb911; 4d1f0f0d53c6c30999226b44ca4aca976d97278b. - Quality of life and stability fixes: Prevent editing feedback when closed and remove stale query keys for deleted surveys to ensure data consistency. Representative commits: 212bb18a9b1a6e4a90791e386bdd6d8cc9debf5c; 0c1f3bcae66f0dc62ebf1bd90ee41ad26aa7e4af. Overall impact: - Improved admin UX for org surveys and courses, reducing ambiguity around duplicates and updates, leading to higher data quality and faster decision-making. - Enhanced reliability and maintainability through refactors, tests-ready patterns, and localization improvements. - Prepared the ground for further performance optimizations and a more polished user experience across the palaute suite.
July 2025
June 2025
36 Commits • 15 Features
Jun 1, 2025June 2025 monthly summary for UniversityOfHelsinkiCS/palaute: Delivered core end-to-end features and reliability improvements across the organisation surveys and course feedback modules. The key feature enabled copying university-level questions into organisation surveys with messaging, a confirmation flow, cross-organisation copying, and handling cases with no questions. Implemented safeguards in small course feedback, including warnings for very small courses and consent requirements before submission. Enhanced data insights and reporting with period-based summary filtering and coordinated year/semester/period filters, preserving the selected period during navigation. Executed targeted UI/UX and code quality improvements, including removing unused imports, eliminating duplicate code, renaming YearSemesterSelector to YearSemesterPeriodSelector, and aligning style with updated filters and translations for consistency. Improved engagement and governance via teacher notifications when a course has fewer than five students in results and email reminders for under-enrolled courses. Expanded testing infrastructure with Cypress typings fixes and added E2E tests for small-course feedback.
June 2025
36 Commits • 15 Features
Jun 1, 2025June 2025 monthly summary for UniversityOfHelsinkiCS/palaute: Delivered core end-to-end features and reliability improvements across the organisation surveys and course feedback modules. The key feature enabled copying university-level questions into organisation surveys with messaging, a confirmation flow, cross-organisation copying, and handling cases with no questions. Implemented safeguards in small course feedback, including warnings for very small courses and consent requirements before submission. Enhanced data insights and reporting with period-based summary filtering and coordinated year/semester/period filters, preserving the selected period during navigation. Executed targeted UI/UX and code quality improvements, including removing unused imports, eliminating duplicate code, renaming YearSemesterSelector to YearSemesterPeriodSelector, and aligning style with updated filters and translations for consistency. Improved engagement and governance via teacher notifications when a course has fewer than five students in results and email reminders for under-enrolled courses. Expanded testing infrastructure with Cypress typings fixes and added E2E tests for small-course feedback.
May 2025
4 Commits • 3 Features
May 1, 2025Month: 2025-05 — palaute (UniversityOfHelsinkiCS/palaute) performance highlights Key features delivered: - Automated Production Database Restore Script: Added a bash-based workflow to fetch and restore a production DB dump for the Jami service. Includes containerized DB setup, remote data retrieval, population of the database with fetched data, a retry mechanism for database readiness checks, and a feature to store/reuse the remote access username. Commit: 0e51ade3ae3f66118edd3a4d893b0ab1dda012af (fix: Create jami db script with fixed values). - Copy Questions Across Organizations: Enabled copying questions from any organization’s surveys by adding a new API endpoint and a client-side hook to fetch this data, broadening the question copying workflow beyond course-unit-linked surveys. Commits: 164f06bcd81f8c9437210077ca712d7d31a7d7dc; 17f754e7b482e289ecedfe8334f0bb7473f7f233 (fix: Get all user's organisation surveys to copy questions; fix: Do not show 'no questions' message when there are questions). - QuestionItem Cleanup / Code Quality Improvement: Refactored QuestionItem to remove duplicated/toggling-code, simplifying maintenance and readability. Commit: 394a0b0bb906d40589868a1b9906763566edc5fe (refactor: Remove duplicate code). Major bugs fixed: - Fixed values in the Jami DB restore script to ensure reliable initial setup (commit 0e51ade3ae3f66118edd3a4d893b0ab1dda012af). - Adjusted question-copy workflow to fetch all organization surveys, preventing incorrect scope and improving UX when surveys exist (commits 164f06bcd... and 17f754e7b4...). - Suppressed misleading 'no questions' messaging when questions exist, improving user feedback (commit 17f754e7b482e289ecedfe8334f0bb7473f7f233). Overall impact and accomplishments: - Reduced production data restoration downtime and manual steps via automated DB restore workflow. - Enhanced content reuse across organizations by enabling cross-org question copying, accelerating survey customization. - Improved code maintainability and reliability through targeted refactors and UX corrections, lowering future maintenance risk. Technologies/skills demonstrated: - Bash scripting, containerized database workflows, remote data retrieval, retry logic. - API development and client-side integration for cross-organization data access. - Front-end/component refactoring and code quality improvements in React-style components (QuestionItem). - Cross-team collaboration evidenced by fixes across API, backend, and UI layers.
4 Commits • 3 Features
May 1, 2025Month: 2025-05 — palaute (UniversityOfHelsinkiCS/palaute) performance highlights Key features delivered: - Automated Production Database Restore Script: Added a bash-based workflow to fetch and restore a production DB dump for the Jami service. Includes containerized DB setup, remote data retrieval, population of the database with fetched data, a retry mechanism for database readiness checks, and a feature to store/reuse the remote access username. Commit: 0e51ade3ae3f66118edd3a4d893b0ab1dda012af (fix: Create jami db script with fixed values). - Copy Questions Across Organizations: Enabled copying questions from any organization’s surveys by adding a new API endpoint and a client-side hook to fetch this data, broadening the question copying workflow beyond course-unit-linked surveys. Commits: 164f06bcd81f8c9437210077ca712d7d31a7d7dc; 17f754e7b482e289ecedfe8334f0bb7473f7f233 (fix: Get all user's organisation surveys to copy questions; fix: Do not show 'no questions' message when there are questions). - QuestionItem Cleanup / Code Quality Improvement: Refactored QuestionItem to remove duplicated/toggling-code, simplifying maintenance and readability. Commit: 394a0b0bb906d40589868a1b9906763566edc5fe (refactor: Remove duplicate code). Major bugs fixed: - Fixed values in the Jami DB restore script to ensure reliable initial setup (commit 0e51ade3ae3f66118edd3a4d893b0ab1dda012af). - Adjusted question-copy workflow to fetch all organization surveys, preventing incorrect scope and improving UX when surveys exist (commits 164f06bcd... and 17f754e7b4...). - Suppressed misleading 'no questions' messaging when questions exist, improving user feedback (commit 17f754e7b482e289ecedfe8334f0bb7473f7f233). Overall impact and accomplishments: - Reduced production data restoration downtime and manual steps via automated DB restore workflow. - Enhanced content reuse across organizations by enabling cross-org question copying, accelerating survey customization. - Improved code maintainability and reliability through targeted refactors and UX corrections, lowering future maintenance risk. Technologies/skills demonstrated: - Bash scripting, containerized database workflows, remote data retrieval, retry logic. - API development and client-side integration for cross-organization data access. - Front-end/component refactoring and code quality improvements in React-style components (QuestionItem). - Cross-team collaboration evidenced by fixes across API, backend, and UI layers.
May 2025
Activity
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Quality Metrics
Correctness89.0%
Maintainability91.2%
Architecture84.4%
Performance87.8%
AI Usage20.2%
Skills & Technologies
Programming Languages
BashJSXJavaScriptPythonReactTypeScripti18nexttsx
Technical Skills
API DevelopmentAPI IntegrationAPI developmentAccess ControlAccessibilityBackend DevelopmentBackend developmentCSSCSS-in-JSCachingCode CleanupCode OrganizationCode RefactoringCode StandardizationComponent Development
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