January 2026 performance summary: three configuration-driven reliability improvements across Helsinki services with focus on MySQL health checks and system tuning. Result: increased uptime, earlier detection of unhealthy containers, and more stable deployments with minimal downtime. This work establishes a consistent pattern for health-check configuration and performance tuning across multiple services, contributing to overall platform stability and maintainability across teams.

August 2025: Security hardening and dependency stability improvements for City-of-Helsinki/helsinki-paatokset. Focused on reducing security risks, stabilizing the tech stack, and enabling safer maintenance operations. Delivered through a targeted set of dependency bumps, CSP adjustments, and Drush command updates. This work strengthens the production baseline and supports smoother future upgrades.