espoon-voltti/evaka
Oct 2024 – Dec 2025
15 Months active
Languages Used
JavaKotlinSQLTypeScriptCSSJavaScriptReacttsx
Technical Skills
API DevelopmentBackend DevelopmentDatabase ManagementFrontend DevelopmentFull Stack DevelopmentKotlin
Mikko Savolainen
PROFILE
Mikko Savolainen
Mikko Savolainen contributed to the espoon-voltti/evaka repository by delivering robust features and data integrity improvements across holiday management, attendance reporting, and finance messaging. He engineered backend and frontend solutions using Kotlin, React, and SQL, focusing on API development, database optimization, and access control. Mikko implemented end-to-end workflows such as holiday questionnaires, finance notes, and messaging systems, ensuring reliable data synchronization and auditability. His work included migrating legacy data, refining permission logic, and enhancing test automation, which improved system reliability and compliance. The depth of his engineering addressed both business requirements and maintainability, resulting in resilient, production-ready solutions.
Overall Statistics
Feature vs Bugs
70%Features
Repository Contributions
126Total
Bugs
16
Commits
126
Features
37
Lines of code
14,042
Activity Months15
Your Network
35 peopleSame Organization
@gofore.com19
Work History
December 2025
3 Commits • 2 Features
Dec 1, 2025December 2025: Delivered test automation and data auditing improvements for espoon-voltti/evaka. Replaced HTTP-dependent SystemController tests with direct method invocations, expanding login behavior coverage for updated/duplicate employee scenarios. Added automatic created_at/updated_at timestamps to daycare_group to strengthen data auditing and change tracking. These changes improve test reliability, speed, and data integrity with low overhead.
3 Commits • 2 Features
Dec 1, 2025December 2025: Delivered test automation and data auditing improvements for espoon-voltti/evaka. Replaced HTTP-dependent SystemController tests with direct method invocations, expanding login behavior coverage for updated/duplicate employee scenarios. Added automatic created_at/updated_at timestamps to daycare_group to strengthen data auditing and change tracking. These changes improve test reliability, speed, and data integrity with low overhead.
December 2025
November 2025
5 Commits • 2 Features
Nov 1, 2025Month: 2025-11 — espoon-voltti/evaka delivered focused business value through two new features and a critical data integrity bug fix, complemented by reliability improvements to guardian approvals workflow. The work includes explicit commit-level traceability (see commits below) and added tests to ensure maintainability and quality. Impact highlights: - Data integrity and usability: Restored employeeNumber in data structures and related queries to maintain accurate employee records; added tests to prevent regressions. - Data lifecycle control: Implemented inactive employeeNumber reset for employees not logged in for >45 days, with updated data structures and tests to ensure correct behavior. - Process reliability: Guardian approvals workflow reliability improvements ensured decisions are sent based on guardian message settings and are not skipped when suomi.fi messages are unavailable, improving application processing timelines and stakeholder experience.
November 2025
5 Commits • 2 Features
Nov 1, 2025Month: 2025-11 — espoon-voltti/evaka delivered focused business value through two new features and a critical data integrity bug fix, complemented by reliability improvements to guardian approvals workflow. The work includes explicit commit-level traceability (see commits below) and added tests to ensure maintainability and quality. Impact highlights: - Data integrity and usability: Restored employeeNumber in data structures and related queries to maintain accurate employee records; added tests to prevent regressions. - Data lifecycle control: Implemented inactive employeeNumber reset for employees not logged in for >45 days, with updated data structures and tests to ensure correct behavior. - Process reliability: Guardian approvals workflow reliability improvements ensured decisions are sent based on guardian message settings and are not skipped when suomi.fi messages are unavailable, improving application processing timelines and stakeholder experience.
October 2025
15 Commits • 4 Features
Oct 1, 2025October 2025 performance summary for espoon-voltti/evaka. Delivered enhancements across attendance management, holiday eligibility, translations, and real-time data handling. Expanded staff attendance types with new sickness categories, mapping to stamping types, access controls, and UI updates; refined holiday eligibility with end-to-end tests; updated Finnish translations and attendance labels; strengthened frontend robustness for real-time attendance display with nullable types and ID collection. These changes improve data accuracy, compliance, and user experience, while reducing manual work and risk of misclassification.
15 Commits • 4 Features
Oct 1, 2025October 2025 performance summary for espoon-voltti/evaka. Delivered enhancements across attendance management, holiday eligibility, translations, and real-time data handling. Expanded staff attendance types with new sickness categories, mapping to stamping types, access controls, and UI updates; refined holiday eligibility with end-to-end tests; updated Finnish translations and attendance labels; strengthened frontend robustness for real-time attendance display with nullable types and ID collection. These changes improve data accuracy, compliance, and user experience, while reducing manual work and risk of misclassification.
October 2025
September 2025
4 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for espoon-voltti/evaka: Delivered critical fixes and a new attendance type feature that improve attendance reporting accuracy, data synchronization robustness, and absence analytics. Key outcomes include: - Fixed attendance report deviation calculation to correctly compare against preparatory times for both preschool and preparatory time ranges; updated tests to reflect accurate reporting of missing minutes for both service types. - Fixed Nekku synchronization to update nullable fields; added integration tests verifying updates of previously null values; refactored SQL queries to handle nullable fields and improve synchronization robustness. - Added staff attendance types SICKNESS and CHILD_SICKNESS with backend Titania code mappings and frontend feature-flag enabled filtering; tests updated. All changes backed by commits and targeted tests, enabling more reliable reporting and better business insights.
September 2025
4 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for espoon-voltti/evaka: Delivered critical fixes and a new attendance type feature that improve attendance reporting accuracy, data synchronization robustness, and absence analytics. Key outcomes include: - Fixed attendance report deviation calculation to correctly compare against preparatory times for both preschool and preparatory time ranges; updated tests to reflect accurate reporting of missing minutes for both service types. - Fixed Nekku synchronization to update nullable fields; added integration tests verifying updates of previously null values; refactored SQL queries to handle nullable fields and improve synchronization robustness. - Added staff attendance types SICKNESS and CHILD_SICKNESS with backend Titania code mappings and frontend feature-flag enabled filtering; tests updated. All changes backed by commits and targeted tests, enabling more reliable reporting and better business insights.
August 2025
1 Commits
Aug 1, 2025Monthly summary for 2025-08 focusing on espoon-voltti/evaka: delivered a targeted bug fix to Holiday Questionnaire Indicator Accuracy, enhancing calendar view reliability and data quality. This work reduces false indicators, improves user trust in planning signals, and aligns with our commitment to accurate holiday planning data.
1 Commits
Aug 1, 2025Monthly summary for 2025-08 focusing on espoon-voltti/evaka: delivered a targeted bug fix to Holiday Questionnaire Indicator Accuracy, enhancing calendar view reliability and data quality. This work reduces false indicators, improves user trust in planning signals, and aligns with our commitment to accurate holiday planning data.
August 2025
July 2025
2 Commits
Jul 1, 2025July 2025: Delivered reliability and data-accuracy improvements in espoon-voltti/evaka. Implemented correct holiday data retrieval for citizen-facing services by deriving min/max dates from provided ranges for placements and holidays, and enhanced daycare and service-need lookups. Added a null-safety guard in shift care evaluation to prevent null pointer errors and ensure shift care availability. These changes reduce data inconsistencies and error-prone paths in core service delivery.
July 2025
2 Commits
Jul 1, 2025July 2025: Delivered reliability and data-accuracy improvements in espoon-voltti/evaka. Implemented correct holiday data retrieval for citizen-facing services by deriving min/max dates from provided ranges for placements and holidays, and enhanced daycare and service-need lookups. Added a null-safety guard in shift care evaluation to prevent null pointer errors and ensure shift care availability. These changes reduce data inconsistencies and error-prone paths in core service delivery.
June 2025
28 Commits • 8 Features
Jun 1, 2025June 2025 (espoon-voltti/evaka) delivered key data integrity improvements and security hardening across the holiday questionnaires, enhanced admin visibility, and organized finance communications, while advancing test automation and code quality. Major outcomes include migrating legacy questionnaire data with constraints, moving permission checks to the backend, introducing admin employee-number visibility, and establishing finance messaging folders, accompanied by E2E/integration test improvements and targeted UI/permission enhancements. These changes reduce data risk, improve regulatory compliance, and accelerate downstream work for administrators and caregivers.
28 Commits • 8 Features
Jun 1, 2025June 2025 (espoon-voltti/evaka) delivered key data integrity improvements and security hardening across the holiday questionnaires, enhanced admin visibility, and organized finance communications, while advancing test automation and code quality. Major outcomes include migrating legacy questionnaire data with constraints, moving permission checks to the backend, introducing admin employee-number visibility, and establishing finance messaging folders, accompanied by E2E/integration test improvements and targeted UI/permission enhancements. These changes reduce data risk, improve regulatory compliance, and accelerate downstream work for administrators and caregivers.
June 2025
May 2025
9 Commits • 3 Features
May 1, 2025May 2025 monthly summary for the espoon-voltti/evaka project. Focused on delivering features that improve reporting accuracy, tracking capabilities, and overall code quality. The work enhances decision support for preschool and preparatory placements and strengthens maintainability for future iterations.
May 2025
9 Commits • 3 Features
May 1, 2025May 2025 monthly summary for the espoon-voltti/evaka project. Focused on delivering features that improve reporting accuracy, tracking capabilities, and overall code quality. The work enhances decision support for preschool and preparatory placements and strengthens maintainability for future iterations.
April 2025
11 Commits • 4 Features
Apr 1, 2025April 2025: Delivered substantial improvements to attendance and placements reporting, strengthened data integrity controls, and expanded testing and UI reliability. The work focused on business value from richer reporting data, reliable notifications, and maintainable code practices across the evaka repo.
11 Commits • 4 Features
Apr 1, 2025April 2025: Delivered substantial improvements to attendance and placements reporting, strengthened data integrity controls, and expanded testing and UI reliability. The work focused on business value from richer reporting data, reliable notifications, and maintainable code practices across the evaka repo.
April 2025
March 2025
14 Commits • 3 Features
Mar 1, 20252025-03 Monthly Summary for espoon-voltti/evaka: Focused delivery and stabilization of key features, with significant improvements in testing, code quality, and backend UX for critical workflows.
March 2025
14 Commits • 3 Features
Mar 1, 20252025-03 Monthly Summary for espoon-voltti/evaka: Focused delivery and stabilization of key features, with significant improvements in testing, code quality, and backend UX for critical workflows.
February 2025
3 Commits • 1 Features
Feb 1, 2025February 2025: Delivered critical data integrity improvements and a new Finance Messaging System in evaka, enabling safer finance data lifecycle and streamlined communications across frontend and backend.
3 Commits • 1 Features
Feb 1, 2025February 2025: Delivered critical data integrity improvements and a new Finance Messaging System in evaka, enabling safer finance data lifecycle and streamlined communications across frontend and backend.
February 2025
January 2025
14 Commits • 2 Features
Jan 1, 2025January 2025 — Delivered two major features in espoon-voltti/evaka along with reliability and compliance improvements that enhance data handling, user experience, and release stability. Key features: (1) Finance notes management in the employee profile, including a full CRUD API, UI integration, permissions checks, end-to-end tests, and a data-model refactor to support create/read/update/delete and access control; backend refactor, frontend initial implementation, and service refactorings were completed. Commits include refactor backend (844aac6e...); frontend initial implementation (f5cda968...); permission checking (aecae545...); initial E2E tests and refactors (f69c7e09...); test fixes (e687c990...); lint (2beb4a43...). (2) Citizen-facing service options visibility with a showForCitizen flag for ServiceNeedOption, filtering options in citizen-facing apps; updates to UI, data models, tests, and codegen. Commits include filter out service need options (3b588cdb...); codegen (57d96c3a...); fix E2E test fixture (1a6bec4c...); reduce unnecessary looping (618153bf...). Reliability and compliance: (3) Test stability improvements—making tests date-insensitive to avoid flakiness; commits include fix future preschooler report test dates (2ff70ac2...); fix date-sensitive E2E test (12aa098e...). (4) Codebase compliance—update SPDX copyright years and standard headers across generated code and controllers. Commits: codegen (d7059cf2...); add copyright headers (f6072074...). Overall impact: strengthened data control and accessibility (finance notes), improved citizen-facing user experience (filtered options), reduced CI risk with resilient tests, and ensured licensing/compliance standards, enabling safer, faster releases. Technologies/skills demonstrated: API design and backend/frontend refactors, permissions and access control, end-to-end testing, UI/data-model alignment, code generation, test fixtures, linting, and regulatory compliance.
January 2025
14 Commits • 2 Features
Jan 1, 2025January 2025 — Delivered two major features in espoon-voltti/evaka along with reliability and compliance improvements that enhance data handling, user experience, and release stability. Key features: (1) Finance notes management in the employee profile, including a full CRUD API, UI integration, permissions checks, end-to-end tests, and a data-model refactor to support create/read/update/delete and access control; backend refactor, frontend initial implementation, and service refactorings were completed. Commits include refactor backend (844aac6e...); frontend initial implementation (f5cda968...); permission checking (aecae545...); initial E2E tests and refactors (f69c7e09...); test fixes (e687c990...); lint (2beb4a43...). (2) Citizen-facing service options visibility with a showForCitizen flag for ServiceNeedOption, filtering options in citizen-facing apps; updates to UI, data models, tests, and codegen. Commits include filter out service need options (3b588cdb...); codegen (57d96c3a...); fix E2E test fixture (1a6bec4c...); reduce unnecessary looping (618153bf...). Reliability and compliance: (3) Test stability improvements—making tests date-insensitive to avoid flakiness; commits include fix future preschooler report test dates (2ff70ac2...); fix date-sensitive E2E test (12aa098e...). (4) Codebase compliance—update SPDX copyright years and standard headers across generated code and controllers. Commits: codegen (d7059cf2...); add copyright headers (f6072074...). Overall impact: strengthened data control and accessibility (finance notes), improved citizen-facing user experience (filtered options), reduced CI risk with resilient tests, and ensured licensing/compliance standards, enabling safer, faster releases. Technologies/skills demonstrated: API design and backend/frontend refactors, permissions and access control, end-to-end testing, UI/data-model alignment, code generation, test fixtures, linting, and regulatory compliance.
December 2024
9 Commits • 4 Features
Dec 1, 2024December 2024 EVAKA: Key features delivered include Holiday Questionnaires with backend feature flag retrieval now exposed to frontend, nullable date ranges, UI range initialization improvements, and cleanup of legacy flags; Titania error management enhancements with the ability to delete individual errors and improved audit logging for Titania reports; Application preferences enabled reordering of units with move up/down controls and updated UI/i18n; Placement tool guardian synchronization to ensure data consistency when a placement tool application is created. Major bug fixes include frontend adjustments following codegen changes, removal of an unused frontend flag, and corrected audit logging. Overall, the work improved data integrity across guardians, strengthened auditing and monitoring, and delivered a more configurable, user-friendly experience. Technologies and skills demonstrated include feature flag architecture and frontend-backend integration, data model enhancements, UI/i18n updates, codegen adaptation, robust audit logging, and cross-guardian synchronization.
9 Commits • 4 Features
Dec 1, 2024December 2024 EVAKA: Key features delivered include Holiday Questionnaires with backend feature flag retrieval now exposed to frontend, nullable date ranges, UI range initialization improvements, and cleanup of legacy flags; Titania error management enhancements with the ability to delete individual errors and improved audit logging for Titania reports; Application preferences enabled reordering of units with move up/down controls and updated UI/i18n; Placement tool guardian synchronization to ensure data consistency when a placement tool application is created. Major bug fixes include frontend adjustments following codegen changes, removal of an unused frontend flag, and corrected audit logging. Overall, the work improved data integrity across guardians, strengthened auditing and monitoring, and delivered a more configurable, user-friendly experience. Technologies and skills demonstrated include feature flag architecture and frontend-backend integration, data model enhancements, UI/i18n updates, codegen adaptation, robust audit logging, and cross-guardian synchronization.
December 2024
November 2024
7 Commits • 2 Features
Nov 1, 2024November 2024 — Evaka: Delivered key features for holiday planning, improved employee lifecycle reliability, and hardened scheduling validation, driving business value in workforce planning and compliance.
November 2024
7 Commits • 2 Features
Nov 1, 2024November 2024 — Evaka: Delivered key features for holiday planning, improved employee lifecycle reliability, and hardened scheduling validation, driving business value in workforce planning and compliance.
October 2024
1 Commits • 1 Features
Oct 1, 2024In 2024-10, delivered a new Open Ranges questionnaire type for holiday periods in espoon-voltti/evaka, extending the existing Fixed Period type. Backend now supports both questionnaire types with corresponding API changes, and the frontend was updated to allow creating and managing Open Ranges. This enables more flexible holiday period management, reduces manual scheduling, and improves policy compliance.
1 Commits • 1 Features
Oct 1, 2024In 2024-10, delivered a new Open Ranges questionnaire type for holiday periods in espoon-voltti/evaka, extending the existing Fixed Period type. Backend now supports both questionnaire types with corresponding API changes, and the frontend was updated to allow creating and managing Open Ranges. This enables more flexible holiday period management, reduces manual scheduling, and improves policy compliance.
October 2024
Activity
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Quality Metrics
Correctness89.4%
Maintainability87.0%
Architecture83.6%
Performance82.4%
AI Usage21.0%
Skills & Technologies
Programming Languages
CSSJavaJavaScriptKotlinReactSQLTypeScripttsx
Technical Skills
API Client GenerationAPI DesignAPI DevelopmentAPI IntegrationAPI RefactoringAPI developmentAccess ControlAudit LoggingBackend DevelopmentCode ComplianceCode FormattingCode QualityCode RefactoringCode Review ImplementationCode Standardization
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