otavanopisto/muikku
Nov 2024 – Feb 2026
13 Months active
Languages Used
JavaYAMLHTMLJavaScriptCSSJSONPythonTypeScript
Technical Skills
API DesignAPI DevelopmentAPI DocumentationAPI IntegrationBackend DevelopmentCode Refactoring
Antti Viljakainen
PROFILE
Antti Viljakainen
Antti Viljakainen contributed to otavanopisto/muikku by delivering a broad range of backend and frontend enhancements over 13 months, focusing on API modernization, access control, and data modeling. He implemented robust REST API features, improved user and guardian management, and introduced Single Page Application routing using Java, TypeScript, and Elasticsearch. Antti’s work included refining build systems with Maven and GitHub Actions, strengthening CI/CD pipelines, and aligning data models for accuracy and maintainability. His technical approach emphasized modularity, security, and clear documentation, resulting in a more reliable, scalable platform that supports faster feature delivery and improved developer experience across the repository.
Overall Statistics
Feature vs Bugs
91%Features
Repository Contributions
66Total
Bugs
3
Commits
66
Features
29
Lines of code
508,165
Activity Months13
Your Network
14 peopleSame Organization
@otavanopisto.fi5
Shared Repositories
9
aMember
Antti UkkonenMember
Jari LankinenMember
pkukkonMember
petja-laitilaMember
petjaMember
saaralepistoMember
salarMember
Tero TanttuMember
Work History
February 2026
1 Commits • 1 Features
Feb 1, 2026February 2026: Delivered enhancements to Staff Search for Indexed Communicator Messages, including staff-only search fields and differentiated search capabilities between staff and regular users. Resolved a nested-object search issue in indexed messages (commit 4c76959a59811c73f91c6e4aee008a8a286571ae). Result: improved internal search relevance, faster access to communications, and stronger data governance.
1 Commits • 1 Features
Feb 1, 2026February 2026: Delivered enhancements to Staff Search for Indexed Communicator Messages, including staff-only search fields and differentiated search capabilities between staff and regular users. Resolved a nested-object search issue in indexed messages (commit 4c76959a59811c73f91c6e4aee008a8a286571ae). Result: improved internal search relevance, faster access to communications, and stronger data governance.
February 2026
January 2026
4 Commits • 2 Features
Jan 1, 2026January 2026 monthly summary for otavanopisto/muikku: Delivered backend enhancements and stability improvements focused on enrollment workflows, external resource linking, and dependency management. Key changes include: 1) Matriculation Enrollment System Enhancements—added opintopolkuUrl to MatriculationExamEnrollment and removed a legacy enrollment notification system to streamline notifications; 2) Matriculation Term Validation Robustness—fixed handling of 'OUTDATED' term strings in the validation logic; 3) Dependency Upgrade for Pyramus—upgraded dependencies to the latest Pyramus version to improve compatibility and leverage new features and fixes.
January 2026
4 Commits • 2 Features
Jan 1, 2026January 2026 monthly summary for otavanopisto/muikku: Delivered backend enhancements and stability improvements focused on enrollment workflows, external resource linking, and dependency management. Key changes include: 1) Matriculation Enrollment System Enhancements—added opintopolkuUrl to MatriculationExamEnrollment and removed a legacy enrollment notification system to streamline notifications; 2) Matriculation Term Validation Robustness—fixed handling of 'OUTDATED' term strings in the validation logic; 3) Dependency Upgrade for Pyramus—upgraded dependencies to the latest Pyramus version to improve compatibility and leverage new features and fixes.
December 2025
1 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for otavanopisto/muikku: Delivered a robust CI/CD and QA automation framework to accelerate validation across Muikku components. Implemented a suite of GitHub Actions workflows enabling headless tests, Sauce Labs cross-browser testing, accessibility checks, and automated code quality reviews. These enhancements established stronger quality gates, reduced manual testing effort, and improved release confidence.
1 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for otavanopisto/muikku: Delivered a robust CI/CD and QA automation framework to accelerate validation across Muikku components. Implemented a suite of GitHub Actions workflows enabling headless tests, Sauce Labs cross-browser testing, accessibility checks, and automated code quality reviews. These enhancements established stronger quality gates, reduced manual testing effort, and improved release confidence.
December 2025
November 2025
16 Commits • 2 Features
Nov 1, 2025Month: 2025-11 — This period delivered substantial frontend modularization and API enhancements for otavanopisto/muikku, focusing on business value, maintainability, and faster delivery cycles. Key milestones include enabling the v3 frontend build within a dedicated frontend module, reorganizing core plugins for better modularity, and delivering Guardian management capabilities that improve access control workflows. Maintenance and stability improvements were also implemented to reduce deployment risk and prepare for release readiness. Notable progress and results: - Frontend Module Reorganization and Build Modernization: Moved v3 frontend to the new frontend module, activated v3 frontend build, relocated ckplugins, and implemented build and pom refinements to streamline dependencies and future user-facing features. Commits include: 4ae9501a4a6e68501e6ef507841804a795b665ed, 016c9d5b538a42da9a272fa994051eb77be5b0df, a766872cbbaa87560dd47bb0fb26c34ad11c78ea6, ec8fcec2fa45616843344d1a0b77ab83e38bcea6, bcca09f7a04bc0eaa5bebe3755beeca5e4a31c3d, f61344c54356316d70d9695c998e84afd8987c2b, 203ee739dba334262a07760f31681d3435dcc9e6, 16754d2f98b22858c39940984700fa33cc1cd668, 4a08fac9cc4603f0ff3088f3066ad292e72ccd7d, d2623f4be0ea835e16d6bf08a0c2f5bc99291012. - Guardian Management Enhancements: Added Guardian-related API endpoints and models, enabling listing guardians and managing guardian status (INVITED, ACTIVE, INACTIVE) with improved responses. Relevant commits include: 912cd49edffeb9e48b057e82c60992f69f37ca4d, f73384335724c1061d4c8decc5dc94549e34fee7, ceaeee6e65714828df76d9446a5725fff43e1db9, 42352e87ffe1d5662a9fec521970c3764cc697d4, 0223174a8d9919951d9d307ebdef88b7f3e89d84, 9f219ab178ce879684b6ea2e6639214acb335517. - Build stability and repo hygiene: Performed cleanup of generated directories, updated to a fresh parent POM version, and applied Pyramus version updates to support stable releases. Commits include: 203ee739dba334262a07760f31681d3435dcc9e6, 16754d2f98b22858c39940984700fa33cc1cd668, 4a08fac9cc4603f0ff3088f3066ad292e72ccd7d, d2623f4be0ea835e16d6bf08a0c2f5bc99291012. - Configuration stability improvements: Fixed a temporary YAML path resolution to ensure environment configuration loads reliably across deployments. Commit: ec8fcec2fa45616843344d1a0b77ab83e38bcea6.
November 2025
16 Commits • 2 Features
Nov 1, 2025Month: 2025-11 — This period delivered substantial frontend modularization and API enhancements for otavanopisto/muikku, focusing on business value, maintainability, and faster delivery cycles. Key milestones include enabling the v3 frontend build within a dedicated frontend module, reorganizing core plugins for better modularity, and delivering Guardian management capabilities that improve access control workflows. Maintenance and stability improvements were also implemented to reduce deployment risk and prepare for release readiness. Notable progress and results: - Frontend Module Reorganization and Build Modernization: Moved v3 frontend to the new frontend module, activated v3 frontend build, relocated ckplugins, and implemented build and pom refinements to streamline dependencies and future user-facing features. Commits include: 4ae9501a4a6e68501e6ef507841804a795b665ed, 016c9d5b538a42da9a272fa994051eb77be5b0df, a766872cbbaa87560dd47bb0fb26c34ad11c78ea6, ec8fcec2fa45616843344d1a0b77ab83e38bcea6, bcca09f7a04bc0eaa5bebe3755beeca5e4a31c3d, f61344c54356316d70d9695c998e84afd8987c2b, 203ee739dba334262a07760f31681d3435dcc9e6, 16754d2f98b22858c39940984700fa33cc1cd668, 4a08fac9cc4603f0ff3088f3066ad292e72ccd7d, d2623f4be0ea835e16d6bf08a0c2f5bc99291012. - Guardian Management Enhancements: Added Guardian-related API endpoints and models, enabling listing guardians and managing guardian status (INVITED, ACTIVE, INACTIVE) with improved responses. Relevant commits include: 912cd49edffeb9e48b057e82c60992f69f37ca4d, f73384335724c1061d4c8decc5dc94549e34fee7, ceaeee6e65714828df76d9446a5725fff43e1db9, 42352e87ffe1d5662a9fec521970c3764cc697d4, 0223174a8d9919951d9d307ebdef88b7f3e89d84, 9f219ab178ce879684b6ea2e6639214acb335517. - Build stability and repo hygiene: Performed cleanup of generated directories, updated to a fresh parent POM version, and applied Pyramus version updates to support stable releases. Commits include: 203ee739dba334262a07760f31681d3435dcc9e6, 16754d2f98b22858c39940984700fa33cc1cd668, 4a08fac9cc4603f0ff3088f3066ad292e72ccd7d, d2623f4be0ea835e16d6bf08a0c2f5bc99291012. - Configuration stability improvements: Fixed a temporary YAML path resolution to ensure environment configuration loads reliably across deployments. Commit: ec8fcec2fa45616843344d1a0b77ab83e38bcea6.
October 2025
4 Commits • 4 Features
Oct 1, 2025October 2025 performance summary for otavanopisto/muikku focusing on delivering business value through data enhancements, API stability, localization, and maintainability.
4 Commits • 4 Features
Oct 1, 2025October 2025 performance summary for otavanopisto/muikku focusing on delivering business value through data enhancements, API stability, localization, and maintainability.
October 2025
September 2025
2 Commits • 2 Features
Sep 1, 2025September 2025: Frontend architecture modernization and build readiness in otavanopisto/muikku. Delivered two key frontend initiatives: (1) a v3 profile-based structure revamp to enable profile-specific features, and (2) a v4 build system plugin setup to streamline future builds and deployments. Major bugs fixed: none documented for this period. Impact includes improved user profiling capabilities, better maintainability, and faster, more reliable release cycles across the frontend stack.
September 2025
2 Commits • 2 Features
Sep 1, 2025September 2025: Frontend architecture modernization and build readiness in otavanopisto/muikku. Delivered two key frontend initiatives: (1) a v3 profile-based structure revamp to enable profile-specific features, and (2) a v4 build system plugin setup to streamline future builds and deployments. Major bugs fixed: none documented for this period. Impact includes improved user profiling capabilities, better maintainability, and faster, more reliable release cycles across the frontend stack.
August 2025
1 Commits • 1 Features
Aug 1, 2025August 2025 monthly work summary for otavanopisto/muikku focused on security and reliability improvements for the Announcement module. Implemented authentication checks and null-safety guards on announcer endpoints to ensure only authenticated users can perform operations and to prevent runtime errors, improving system stability and data protection.
1 Commits • 1 Features
Aug 1, 2025August 2025 monthly work summary for otavanopisto/muikku focused on security and reliability improvements for the Announcement module. Implemented authentication checks and null-safety guards on announcer endpoints to ensure only authenticated users can perform operations and to prevent runtime errors, improving system stability and data protection.
August 2025
May 2025
2 Commits • 2 Features
May 1, 2025In May 2025, otavanopisto/muikku delivered two key enhancements that improve maintainability and data accuracy. 1) UI HTML cleanup for Readability: removed unnecessary XML namespaces and comments and pruned commented-out context-path code in index.html to enhance readability and future maintainability. 2) MatriculationExam date field enhancement: added confirmDate field and migrated date types from long to LocalDate for starts/ends, enabling more accurate date handling and representations. These changes reduce technical debt, strengthen data integrity, and lay groundwork for future date-driven features. Technologies/skills demonstrated include HTML code hygiene, Java LocalDate usage, and traceable commit-based changes for maintainability.
May 2025
2 Commits • 2 Features
May 1, 2025In May 2025, otavanopisto/muikku delivered two key enhancements that improve maintainability and data accuracy. 1) UI HTML cleanup for Readability: removed unnecessary XML namespaces and comments and pruned commented-out context-path code in index.html to enhance readability and future maintainability. 2) MatriculationExam date field enhancement: added confirmDate field and migrated date types from long to LocalDate for starts/ends, enabling more accurate date handling and representations. These changes reduce technical debt, strengthen data integrity, and lay groundwork for future date-driven features. Technologies/skills demonstrated include HTML code hygiene, Java LocalDate usage, and traceable commit-based changes for maintainability.
March 2025
1 Commits
Mar 1, 2025March 2025 monthly summary for otavanopisto/muikku. Focused on reliability and correctness of attachment handling. Delivered a critical bug fix to Workspace Attachments Routing, ensuring attachments are served directly by the backend while general workspace routes are handled by the SPA. This reduced routing ambiguity and improved user experience for media assets.
1 Commits
Mar 1, 2025March 2025 monthly summary for otavanopisto/muikku. Focused on reliability and correctness of attachment handling. Delivered a critical bug fix to Workspace Attachments Routing, ensuring attachments are served directly by the backend while general workspace routes are handled by the SPA. This reduced routing ambiguity and improved user experience for media assets.
March 2025
February 2025
9 Commits • 3 Features
Feb 1, 2025February 2025: Delivered a cohesive SPA-driven frontend experience, tightened workspace-based access controls, and expanded user data APIs to support business workflows. Key frontend routing and forwarding features were delivered, workspace access control implemented, and user data APIs enhanced for better guidance counselor visibility and client-facing identity data. Result: smoother UX, stronger security posture, and clearer developer APIs enabling faster feature iterations.
February 2025
9 Commits • 3 Features
Feb 1, 2025February 2025: Delivered a cohesive SPA-driven frontend experience, tightened workspace-based access controls, and expanded user data APIs to support business workflows. Key frontend routing and forwarding features were delivered, workspace access control implemented, and user data APIs enhanced for better guidance counselor visibility and client-facing identity data. Result: smoother UX, stronger security posture, and clearer developer APIs enabling faster feature iterations.
January 2025
4 Commits • 3 Features
Jan 1, 2025January 2025 (2025-01) monthly summary for otavanopisto/muikku. Delivered backend data enhancements, routing improvements, and data exposure updates that improve accuracy, user experience, and API/Docs quality. Demonstrated end-to-end capabilities from data model changes to frontend routing and guard validation, enabling better business insights and smoother client applications.
4 Commits • 3 Features
Jan 1, 2025January 2025 (2025-01) monthly summary for otavanopisto/muikku. Delivered backend data enhancements, routing improvements, and data exposure updates that improve accuracy, user experience, and API/Docs quality. Demonstrated end-to-end capabilities from data model changes to frontend routing and guard validation, enabling better business insights and smoother client applications.
January 2025
December 2024
9 Commits • 5 Features
Dec 1, 2024December 2024 — Delivered key features and architectural improvements across otavanopisto/muikku. Implemented policy-driven data handling for under-18 compulsory education, strengthened workspace access control with role-based permissions, centralized matriculation permission checks, enhanced search indexing with date type support, and clarified API surfaces for guidance counselor user retrieval. These changes enable better compliance, secure data access, more accurate search results, and cleaner API surfaces. The work reduces policy drift, improves security posture, and accelerates future feature delivery.
December 2024
9 Commits • 5 Features
Dec 1, 2024December 2024 — Delivered key features and architectural improvements across otavanopisto/muikku. Implemented policy-driven data handling for under-18 compulsory education, strengthened workspace access control with role-based permissions, centralized matriculation permission checks, enhanced search indexing with date type support, and clarified API surfaces for guidance counselor user retrieval. These changes enable better compliance, secure data access, more accurate search results, and cleaner API surfaces. The work reduces policy drift, improves security posture, and accelerates future feature delivery.
November 2024
12 Commits • 3 Features
Nov 1, 2024November 2024 (otavanopisto/muikku) delivered focused enhancements in user activity detection, access control, and API modernization. The work produced a leaner, better-documented API surface, strengthened permission logic, and more accurate inactive-user targeting, translating to improved user management, reduced risk, and faster integrations for downstream systems.
12 Commits • 3 Features
Nov 1, 2024November 2024 (otavanopisto/muikku) delivered focused enhancements in user activity detection, access control, and API modernization. The work produced a leaner, better-documented API surface, strengthened permission logic, and more accurate inactive-user targeting, translating to improved user management, reduced risk, and faster integrations for downstream systems.
November 2024
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Quality Metrics
Correctness88.4%
Maintainability88.4%
Architecture86.4%
Performance83.0%
AI Usage20.8%
Skills & Technologies
Programming Languages
CSSHTMLJSONJavaJavaScriptPythonTypeScriptXMLYAML
Technical Skills
API DesignAPI DevelopmentAPI DocumentationAPI IntegrationAPI designAccess ControlBackend DevelopmentBuild ToolsCI/CDCSSCode RefactoringConfiguration ManagementCriteria APIData ModelingDependency Injection
Repositories Contributed To
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