Opetushallitus/koski
Nov 2024 – Feb 2026
15 Months active
Languages Used
JavaScriptScalaTypeScriptConfMarkdownSQLBashJava
Technical Skills
API DevelopmentBackend DevelopmentFrontend DevelopmentOAuth2PlaywrightReact
Axel Wikström
PROFILE
Axel Wikström
Axel Wikström contributed to the Opetushallitus/koski repository by delivering robust backend and frontend features focused on data integrity, security, and operational reliability. Over 15 months, he implemented OAuth2 consent management, modernized CI/CD pipelines, and refactored core data models using Scala, TypeScript, and SQL. His work included upgrading authentication flows, optimizing database schemas, and enhancing test automation to reduce release risk and improve maintainability. Axel addressed complex requirements such as secure certificate handling and worker lease scheduling, ensuring compliance and system stability. Through careful refactoring and documentation, he improved developer clarity and positioned the codebase for future scalability and maintainability.
Overall Statistics
Feature vs Bugs
64%Features
Repository Contributions
158Total
Bugs
26
Commits
158
Features
47
Lines of code
184,167
Activity Months15
Your Network
47 peopleSame Organization
@reaktor.com41
Work History
February 2026
4 Commits • 1 Features
Feb 1, 2026February 2026 monthly performance summary: Delivered foundational worker lease capability in Koski and strengthened reliability across the pipeline, with targeted fixes to orphaned job handling to stabilize certificate loading tests.
4 Commits • 1 Features
Feb 1, 2026February 2026 monthly performance summary: Delivered foundational worker lease capability in Koski and strengthened reliability across the pipeline, with targeted fixes to orphaned job handling to stabilize certificate loading tests.
February 2026
January 2026
13 Commits • 5 Features
Jan 1, 2026January 2026 (Opetushallitus/koski): Implemented security hardening, deployment simplification, and reliability improvements that reduce risk, accelerate releases, and improve operational efficiency. Key outcomes include certificate boundary hardening against internal compute CAs, removal of Basic Auth and X-Auth header reliance, streamlined deployment workflow, improved CI/test reliability, and a Postgres-based worker lease replacing ECS for scheduling. Maintenance tasks closed security gaps and upgraded dependencies to address CVEs.
January 2026
13 Commits • 5 Features
Jan 1, 2026January 2026 (Opetushallitus/koski): Implemented security hardening, deployment simplification, and reliability improvements that reduce risk, accelerate releases, and improve operational efficiency. Key outcomes include certificate boundary hardening against internal compute CAs, removal of Basic Auth and X-Auth header reliance, streamlined deployment workflow, improved CI/test reliability, and a Postgres-based worker lease replacing ECS for scheduling. Maintenance tasks closed security gaps and upgraded dependencies to address CVEs.
December 2025
5 Commits • 1 Features
Dec 1, 2025December 2025: Opetushallitus/koski contributions focused on stabilizing tests and modernizing the build toolchain. Key outcomes include increased test fidelity for MigrationSpec by aligning expectations with the current loader/builder state, and a significant tooling modernization to remove Scalafix, upgrade Scala and plugins, and align dependencies with tagged releases and the Mojave fork. These changes reduce flaky test outcomes, enable smoother integration with OPH release artifacts, and improve build reliability and maintainability.
5 Commits • 1 Features
Dec 1, 2025December 2025: Opetushallitus/koski contributions focused on stabilizing tests and modernizing the build toolchain. Key outcomes include increased test fidelity for MigrationSpec by aligning expectations with the current loader/builder state, and a significant tooling modernization to remove Scalafix, upgrade Scala and plugins, and align dependencies with tagged releases and the Mojave fork. These changes reduce flaky test outcomes, enable smoother integration with OPH release artifacts, and improve build reliability and maintainability.
December 2025
November 2025
7 Commits • 3 Features
Nov 1, 2025Month: 2025-11 — Opetushallitus/koski Concise monthly summary focusing on key accomplishments, business value, and technical achievements. Key delivery highlights: - Scala 2.13 Upgrade and Compatibility: Migrated the project to Scala 2.13, aligned codebase, dependencies, and test configurations to improve future maintainability and reduce upgrade risk. Related commits include: 20712e33b0866aaf377690b4b53a19ebe1ec2e9e, a937b3e1dfa2c804e1986d6ea84aa90aef9c3ad6, 5f023b91bd539c95da12fdb5eaf2b327860d8b46, 820e1312aa3fd388ca2d554d1352350feee48300, b0238a297a2a104ec778032e77b1dcaa339d8cc6. - Markdown Rendering Enhancement with CommonMark: Replaced Knockoff with CommonMark to improve markdown parsing and rendering capabilities. Commit: bdc074d67715546238cf53e849a9d884aafdf00e. - Education Data Model TypeScript Refactor: Refactored TypeScript types for educational entities to improve consistency, correctness, and maintainability. Commit: d2a01ecbfb958508a2a5b3ac2404e0f5e1019a85. Major bugs fixed: - Addressed build/test regressions during the upgrade: test fixes for Scala 2.13 and configuration adjustments (e.g., pom exclusions for scala-xml_2.12) to stabilize CI outcomes. Example commits include: 820e1312aa3fd388ca2d554d1352350feee48300 and b0238a297a2a104ec778032e77b1dcaa339d8cc6, 5f023b91bd539c95da12fdb5eaf2b327860d8b46. Overall impact and accomplishments: - Improved future-proofing and maintainability: upgrade positions koski for upcoming language and platform updates with reduced technical debt. - Enhanced developer productivity and content quality: markdown rendering improvements and a cleaner TypeScript data model reduce complexity and surface area for bugs. - Positive business value: more reliable builds, faster iteration cycles, and better data consistency in educational entities. Technologies/skills demonstrated: - Scala tooling and language upgrade practices, test configuration, and build stability - Markdown processing with CommonMark integration - TypeScript data model refactor for educational entities - Build tooling, CI reliability, and regression mitigation
November 2025
7 Commits • 3 Features
Nov 1, 2025Month: 2025-11 — Opetushallitus/koski Concise monthly summary focusing on key accomplishments, business value, and technical achievements. Key delivery highlights: - Scala 2.13 Upgrade and Compatibility: Migrated the project to Scala 2.13, aligned codebase, dependencies, and test configurations to improve future maintainability and reduce upgrade risk. Related commits include: 20712e33b0866aaf377690b4b53a19ebe1ec2e9e, a937b3e1dfa2c804e1986d6ea84aa90aef9c3ad6, 5f023b91bd539c95da12fdb5eaf2b327860d8b46, 820e1312aa3fd388ca2d554d1352350feee48300, b0238a297a2a104ec778032e77b1dcaa339d8cc6. - Markdown Rendering Enhancement with CommonMark: Replaced Knockoff with CommonMark to improve markdown parsing and rendering capabilities. Commit: bdc074d67715546238cf53e849a9d884aafdf00e. - Education Data Model TypeScript Refactor: Refactored TypeScript types for educational entities to improve consistency, correctness, and maintainability. Commit: d2a01ecbfb958508a2a5b3ac2404e0f5e1019a85. Major bugs fixed: - Addressed build/test regressions during the upgrade: test fixes for Scala 2.13 and configuration adjustments (e.g., pom exclusions for scala-xml_2.12) to stabilize CI outcomes. Example commits include: 820e1312aa3fd388ca2d554d1352350feee48300 and b0238a297a2a104ec778032e77b1dcaa339d8cc6, 5f023b91bd539c95da12fdb5eaf2b327860d8b46. Overall impact and accomplishments: - Improved future-proofing and maintainability: upgrade positions koski for upcoming language and platform updates with reduced technical debt. - Enhanced developer productivity and content quality: markdown rendering improvements and a cleaner TypeScript data model reduce complexity and surface area for bugs. - Positive business value: more reliable builds, faster iteration cycles, and better data consistency in educational entities. Technologies/skills demonstrated: - Scala tooling and language upgrade practices, test configuration, and build stability - Markdown processing with CommonMark integration - TypeScript data model refactor for educational entities - Build tooling, CI reliability, and regression mitigation
October 2025
15 Commits • 6 Features
Oct 1, 2025October 2025 (koski/opetushallitus/koski): Key delivery across deployment, integration, security, and maintainability. Strengthened release reliability through ECS deployment modernization, ALB/X-Road integration, and UI simplification; improved security and observability with client certificate logging and OAuth2 adjustments; reinforced CI/CD with stability and test coverage improvements; and resolved critical access-right correctness. This period delivered measurable business value: faster, more reliable deployments; better service-to-service communication; reduced frontend maintenance; improved traceability and test reliability.
15 Commits • 6 Features
Oct 1, 2025October 2025 (koski/opetushallitus/koski): Key delivery across deployment, integration, security, and maintainability. Strengthened release reliability through ECS deployment modernization, ALB/X-Road integration, and UI simplification; improved security and observability with client certificate logging and OAuth2 adjustments; reinforced CI/CD with stability and test coverage improvements; and resolved critical access-right correctness. This period delivered measurable business value: faster, more reliable deployments; better service-to-service communication; reduced frontend maintenance; improved traceability and test reliability.
October 2025
September 2025
7 Commits • 4 Features
Sep 1, 2025September 2025 monthly summary for Opetushallitus/koski: Delivered data-integrity and UI improvements, performance optimization via caching, and security hardening, enabling ammatillinen-v2 and reducing risk exposure. Focused on business value, traceability, and maintainability across the Koski repository.
September 2025
7 Commits • 4 Features
Sep 1, 2025September 2025 monthly summary for Opetushallitus/koski: Delivered data-integrity and UI improvements, performance optimization via caching, and security hardening, enabling ammatillinen-v2 and reducing risk exposure. Focused on business value, traceability, and maintainability across the Koski repository.
August 2025
27 Commits • 8 Features
Aug 1, 2025August 2025 (2025-08) Koski repository monthly summary focusing on delivering business value through data integrity, UX reliability, and improved data visibility. The month emphasized correcting data display and state reflection, cleaning legacy structures, strengthening validation, and stabilizing CI. These changes reduce risk in releases, improve user efficiency, and enable safer data entry and navigation for end users.
27 Commits • 8 Features
Aug 1, 2025August 2025 (2025-08) Koski repository monthly summary focusing on delivering business value through data integrity, UX reliability, and improved data visibility. The month emphasized correcting data display and state reflection, cleaning legacy structures, strengthening validation, and stabilizing CI. These changes reduce risk in releases, improve user efficiency, and enable safer data entry and navigation for end users.
August 2025
July 2025
3 Commits • 1 Features
Jul 1, 2025In July 2025, delivered UI and accessibility enhancements for Opetushallitus/koski, focusing on the editing experience and keyboard/screen-reader usability. The work improves editing flow reliability and accessibility across components, aligning with product quality and compliance goals.
July 2025
3 Commits • 1 Features
Jul 1, 2025In July 2025, delivered UI and accessibility enhancements for Opetushallitus/koski, focusing on the editing experience and keyboard/screen-reader usability. The work improves editing flow reliability and accessibility across components, aligning with product quality and compliance goals.
June 2025
12 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for Opetushallitus/koski: Delivered a significant UI overhaul for the Vocational Education module behind a feature flag, introducing new components, refactoring, and accessibility refinements; included a screen-grade editor. In parallel, strengthened the Vocational Education testing foundation with stability improvements, test file splitting, runner and config fixes, flaky-test handling, and new end-to-end tests and smoke tests. These changes enable safer incremental releases, reduce regression risk, and improve overall quality. Technologies demonstrated include TypeScript, Mocha, test tooling configuration, and feature-flag driven UI development.
12 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for Opetushallitus/koski: Delivered a significant UI overhaul for the Vocational Education module behind a feature flag, introducing new components, refactoring, and accessibility refinements; included a screen-grade editor. In parallel, strengthened the Vocational Education testing foundation with stability improvements, test file splitting, runner and config fixes, flaky-test handling, and new end-to-end tests and smoke tests. These changes enable safer incremental releases, reduce regression risk, and improve overall quality. Technologies demonstrated include TypeScript, Mocha, test tooling configuration, and feature-flag driven UI development.
June 2025
April 2025
2 Commits • 1 Features
Apr 1, 2025April 2025 monthly performance summary for Opetushallitus/koski: Focused on database cleanliness and alignment, delivering a schema cleanup and supporting documentation updates. No user-facing feature releases this month; major effort was structural improvement to reduce data integrity risk and clarify the data model for developers and future work. Key outcomes include the removal of the redundant linkitetyt_oidit column from koski.r_henkilo and updating the database documentation to reflect the current schema, aligning with best practices for data governance and maintainability.
April 2025
2 Commits • 1 Features
Apr 1, 2025April 2025 monthly performance summary for Opetushallitus/koski: Focused on database cleanliness and alignment, delivering a schema cleanup and supporting documentation updates. No user-facing feature releases this month; major effort was structural improvement to reduce data integrity risk and clarify the data model for developers and future work. Key outcomes include the removal of the redundant linkitetyt_oidit column from koski.r_henkilo and updating the database documentation to reflect the current schema, aligning with best practices for data governance and maintainability.
March 2025
14 Commits • 4 Features
Mar 1, 2025During March 2025, Koski delivered measurable improvements in data accuracy, user messaging, and system stability. Key features included a recalculation of end-of-compulsory-education dates for students moving abroad (with a new SQL CTE to track move dates and updated tests, including edge cases when the move occurs before age 7). We also refined the handling of Maksuttomuus/Maksullisuus with clearer error messaging and NULLing of fee fields when no information is provided. Additionally, we removed the oppivelvollisuustiedotFiltering feature flag to simplify code paths and queries. Finally, CI/CD and database/documentation improvements strengthened reliability, including secret inheritance, pre-built E2E images, logging/test stability, port handling, and a tightened statement_timeout, along with updated database docs and E2E test stability fixes.
14 Commits • 4 Features
Mar 1, 2025During March 2025, Koski delivered measurable improvements in data accuracy, user messaging, and system stability. Key features included a recalculation of end-of-compulsory-education dates for students moving abroad (with a new SQL CTE to track move dates and updated tests, including edge cases when the move occurs before age 7). We also refined the handling of Maksuttomuus/Maksullisuus with clearer error messaging and NULLing of fee fields when no information is provided. Additionally, we removed the oppivelvollisuustiedotFiltering feature flag to simplify code paths and queries. Finally, CI/CD and database/documentation improvements strengthened reliability, including secret inheritance, pre-built E2E images, logging/test stability, port handling, and a tightened statement_timeout, along with updated database docs and E2E test stability fixes.
March 2025
February 2025
14 Commits • 5 Features
Feb 1, 2025Month: 2025-02 – Koski (Opetushallitus/koski) delivered a focused set of business-value features and maintainability improvements across eligibility handling, data quality, sharing capabilities, and operational efficiency. The work improves compliance, reduces manual intervention, and enhances user experience and data reliability.
February 2025
14 Commits • 5 Features
Feb 1, 2025Month: 2025-02 – Koski (Opetushallitus/koski) delivered a focused set of business-value features and maintainability improvements across eligibility handling, data quality, sharing capabilities, and operational efficiency. The work improves compliance, reduces manual intervention, and enhances user experience and data reliability.
January 2025
18 Commits • 3 Features
Jan 1, 20252025-01 Koski – Concise monthly summary focused on delivering business value through CI/CD modernization, code quality improvements, and secure integration. Key outcomes include a streamlined and reliable release pipeline, consistent build environments, and improved security posture with OAuth2 integration for ONR. These changes lowered release risk, reduced manual toil, and enhanced maintainability across the Koski repository.
18 Commits • 3 Features
Jan 1, 20252025-01 Koski – Concise monthly summary focused on delivering business value through CI/CD modernization, code quality improvements, and secure integration. Key outcomes include a streamlined and reliable release pipeline, consistent build environments, and improved security posture with OAuth2 integration for ONR. These changes lowered release risk, reduced manual toil, and enhanced maintainability across the Koski repository.
January 2025
December 2024
16 Commits • 3 Features
Dec 1, 2024December 2024 monthly summary for Opetushallitus/koski focusing on business value and technical achievements. This month encompassed security hardening of OAuth2, scalable data export improvements by learner, and proactive dependency maintenance to bolster security and stability. Key outcomes include stronger token lifecycle controls and metadata exposure, per-learner mass data export with batch processing, and updated API/docs for clarity.
December 2024
16 Commits • 3 Features
Dec 1, 2024December 2024 monthly summary for Opetushallitus/koski focusing on business value and technical achievements. This month encompassed security hardening of OAuth2, scalable data export improvements by learner, and proactive dependency maintenance to bolster security and stability. Key outcomes include stronger token lifecycle controls and metadata exposure, per-learner mass data export with batch processing, and updated API/docs for clarity.
November 2024
1 Commits • 1 Features
Nov 1, 2024Month 2024-11 — Focused delivery on secure consent management in Opetushallitus/koski, delivering a unified consent experience and robust backend support for OAuth2 permissions. The work enhances user control over third-party access and strengthens security visibility while maintaining seamless user flows.
1 Commits • 1 Features
Nov 1, 2024Month 2024-11 — Focused delivery on secure consent management in Opetushallitus/koski, delivering a unified consent experience and robust backend support for OAuth2 permissions. The work enhances user control over third-party access and strengthens security visibility while maintaining seamless user flows.
November 2024
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Quality Metrics
Correctness87.8%
Maintainability87.6%
Architecture83.6%
Performance81.6%
AI Usage22.0%
Skills & Technologies
Programming Languages
BashCSSConfHOCONHTMLJSXJavaJavaScriptLESSLess
Technical Skills
API CachingAPI DevelopmentAPI IntegrationAPI SecurityAPI developmentAPI securityAWSAWS ECRAWS ECSAWS IntegrationAccess ControlAccessibilityAuthenticationBackend DevelopmentBash scripting
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline