September 2025 — Opetushallitus/kouta-backend focused on strengthening security, stability, and compatibility through targeted dependency upgrades and build hygiene. Delivered a cohesive dependency upgrade bundle under OK-5248, covering core libraries and removal of duplicate declarations. These changes reduce risk from supply-chain drift, improve compatibility with downstream services, and streamline future upgrades. No user-facing feature flags introduced; this work enhances maintainability and release confidence.

In August 2025, delivered two focused improvements in Opetushallitus/ataru: improvements to Automatic Eligibility Checks and new developer tooling to streamline code navigation. The work delivered clearer eligibility conditions, corrected ordering of logging and evaluation in the eligibility path, and added a Makefile rule to generate a tags index using ctags, enhancing onboarding and code exploration.

July 2025 — Opetushallitus/kouta-backend: Focused on maintenance, stability, and compatibility. No new features deployed. Major effort fixed a convergence issue with the kouta-external dependency by updating the Jetty dependency, reinforcing dependency management and backend stability. This work reduces runtime risk and positions the project for smoother future releases. Technologies demonstrated: Java backend, Jetty, dependency management, and build hygiene.