# Migrations & Modernization > Selected Engineer ApS work demonstrating Migrations & Modernization — the achievements that prove it. - [Optimized budget costs 10 times with zero loss in productivity for the Saudi Arabia company by reimagining the overall infrastructure, eliminating unnecessary services, and relocating from the AWS cloud.](https://platform.engineer.company/portfolio/optimized-budget-costs-10-times-with-zero-loss-56/) - [Kept the schema honest across 1,022 migrations with a CI gate that builds the database both ways — a fresh install, and an install plus every migration — and fails when the two disagree.](https://platform.engineer.company/portfolio/kept-the-schema-honest-across-1022-migrations-99/)